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212-055 Sun Certified Programmer for the Java 2 Platform.SE 5.0

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212-055 exam Dumps Source : Sun Certified Programmer for the Java 2 Platform.SE 5.0

Test Code : 212-055
Test title : Sun Certified Programmer for the Java 2 Platform.SE 5.0
Vendor title : SUN
: 581 real Questions

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SUN Sun Certified Programmer for

Wi-solar Launches FAN Certification software For gigantic-Scale, out of doors IoT Networks | killexams.com real Questions and Pass4sure dumps

SAN RAMON, Calif., Oct. 1, 2018 (Canada NewsWire by the disburse of COMTEX) -- Paves the route to accelerate up IoT finish gadget Interoperability

The Wi-solar Alliance, a global ecosystem of member corporations in quest of to accelerate up the implementation of open requirements-based box belt Networks (FAN) and the internet of issues (IoT), these days introduced its FAN Certification program. FAN is a communications infrastructure for extremely colossal-scale networks. in the equal method you disburse the cyber web on a smartphone or laptop, a container belt community lets gadgets interconnect onto one regular community.

the provision of the FAN Certification application is the upshot of the vision, collaboration and dedication of a yoke of Wi-solar Member corporations. during the certification program, the Wi-solar Alliance certifies products according to their compliance to a communications profile derived from pertinent open specifications and their capacity to interoperate with different Wi-solar certified products.

The FAN Certification software will certify contraptions for disburse by utilities, metropolis builders and different provider suppliers to simplify and aid significant-scale, outside networks for sensible cities, prudent utilities and different IoT rollouts - and to aid slash back costs and delays. Wi-solar participants scheme to advertise licensed items in this autumn 2018.

Proprietary techniques are no longer sufficiently bendy, or as economical as solutions in accordance with open requisites, and may become less principal within a number of years. Adhering to the Wi-solar FAN profile in accordance with open IEEE and IETF specifications allows for service suppliers, smart cities and utilities to deploy adaptable multi-provider networks and should aid acquire inevitable interoperability, now not simplest nowadays, however likewise for a long time to return.

"Wi-sun continues to be on the forefront of IoT innovation, and as cities, utilities and the trade grows their IoT networks, they're increasingly recognizing that business-wide open standards are basic for interoperability and scalability," says Phil Beecher, President and CEO of the Wi-solar Alliance. "FAN Certification is an endorsement for governments and the commerce that their contributors' products are compliant to these open requisites, and safeguards first-class, interoperability, security, scalability - and ultimately gives customers a competitive capabilities."

Key benefits of FAN Certification consist of:

-- presents utilities, cities and repair suppliers adaptable multi-carrier networks which will support be inevitable interoperability these days and for future generations. -- Reduces the time mandatory to consider new items, as conduct, performance and interoperability are smartly described. -- Eliminates single-seller lock-in. -- Encourages the building of a world ecosystem of specifications-based items, reducing the possibility and costly impact of stranded belongings.

All Wi-sun certified items are rigorously verified by using an authorized Wi-sun appointed third-party perceive at various lab to be inevitable the contraptions toil together without hardship and securely for swift time to market. certified gadgets encompass a digital certificates to authenticate entry to a Wi-sun FAN community, significantly cutting back vulnerability to cyber safety threats. beneath a separate contract, Wi-sun has selected GlobalSign to provide certificate Authority (CA) services to Wi-sun Alliance member corporations.

Third party feedback:

Alex Davies, Senior Analyst, Rethink expertise analysis and Editor of riot: "Open requisites are one of the vital top of the line the prerogative route to be inevitable mass adoption of a technology. As with WiFi and the 3GPP mobile protocols, Wi-sun's FAN is offering numerous selections for apparatus and expertise suppliers to facilitate consumer hobby. power suppliers and grid operators are concerned about seller lock-in, in particular because of the long lifestyles cycles of their deployments. To this end, Wi-solar should provide a solution to their mission-critical complications that other LPWAN options can't. It opens the door for them to extend into other IoT markets, with smart cities an enormous probability."

Iker Urrutia, supervisor, smart Grids, Avangrid: "IoT networking options based on open specifications and licensed to the Wi-solar FAN profile might be primary in obtaining real interoperability for utility applications, similar to AMI, accelerating the digitization of the grid in a value efficient approach."

Colton Ching, Senior vice president of Planning & expertise at Hawaiian electric: "We proceed to espy Wi-sun expertise as an incredible enabler for huge-scale IoT applications entire the route through Hawaii with the provision of its FAN Certification software. The Wi-sun Alliance and its members believe taken an immense step forward in bringing multi-seller, interoperable solutions to fruition."

FAN Certification Availability: The FAN Certification program has been developed during the collaboration of Wi-solar member corporations, together with product vendors and collaborators collaborating in interoperability routine to prove the specifications and certification test software. prerogative here are amongst some of the corporations who had been actively main a route to certification: Analog devices, Cisco, EPRI, Itron, Kyoto school/Nissin techniques, Landis+Gyr, ProCubed, Renesas and ROHM Europe.

To learn more about a route to publish your items to be certified, delight talk over with http://www.wi-solar.org

guaranteeing a product is compliant can likewise be complicated so the Wi-sun Alliance is desperate to capitalize and wield any issues. delight be portion of Wi-sun for an upcoming webinar on Oct 16, 2018 at 8AM PT. during this webinar they are able to give an overview of the import of certification and the route to navigate the manner to achieve FAN Certification. For greater information and to register delight click on prerogative here https://attendee.gotowebinar.com/register/9187903284805872385.

about the Wi-sun AllianceThe Wi-solar Alliance is a worldwide non-earnings member-based mostly affiliation made up of industry leading groups. Its mission is to power the international proliferation of interoperable instant options to be used in sensible cities, prudent grids and different internet of issues (IoT) functions using open world requisites from agencies, equivalent to IEEE802, IETF, TIA, TTC and ETSI. With greater than one hundred eighty members international, membership of the Wi-sun Alliance is open to entire commerce stakeholders and includes silicon vendors, product providers, features providers, utilities, universities, businesses and municipalities and local govt companies.

For more tips, delight dispute with: www.wi-sun.org.

Wi-sun Alliance and the Wi-sun Alliance brand are emblems of the Wi-sun Alliance.

View original content:http://www.prnewswire.com/information-releases/wi-solar-launches-fan-certification-application-for-huge-scale-outdoor-iot-networks-300720951.html

supply Wi-solar Alliance

View habitual content: http://www.newswire.ca/en/releases/archive/October2018/01/c8301.html

supply: Wi-sun Alliance

North america: Shannon Mayette, Wi-sun Alliance, media@wi-solar.org, Tel: +1 (602) 882-4733, or UK: Amanda Hassall, Paula Averley, Louise Burke, beginning Communications, Wi-sun@origincomms.com, Tel: +forty four (0) 20 3814 2941, https://www.wi-sun.org

Copyright (C) 2018 CNW neighborhood. entire rights reserved.


Itron supports the Wi-solar Alliance’s FAN Certification program for significant-scale outside Industrial IoT Networks | killexams.com real Questions and Pass4sure dumps

LIBERTY LAKE, Wash.--(company WIRE)--Itron, Inc. (NASDAQ: ITRI), which is innovating the route utilities and cities control power and water and a member of the Wi-solar Alliance, has announced its assist for the Wi-solar box belt community (FAN) Certification application launched these days. The Wi-solar (instant smart Ubiquitous Networks) Alliance is a world ecosystem of member companies in search of to accelerate the implementation of open necessities-based mostly FAN and the internet of things (IoT). A FAN is a communications infrastructure for terribly-enormous scale networks. In the same route the information superhighway is obtainable to a variety of makes and models of smartphones and computers, the Wi-sun FAN common enables diverse industrial instruments to interconnect onto regular, comfortable, industrial-grade networks.

throughout the FAN Certification application, the Wi-sun Alliance certifies products according to their compliance to a communications profile derived from pertinent open standards and their skill to interoperate with other Wi-sun certified items. Itron will disburse the Wi-solar FAN yardstick as a foundation for its community systems.

“As a Promoter Member of the Wi-solar Alliance and an incredible contributor to the FAN certification application, Itron is joyful to be among the first to publish their product during the certification technique,” referred to Sharelynn Moore, senior vice chairman of networked solutions at Itron. “Itron’s lengthy-standing dedication to the progress and evolution of this common technology addresses their purchasers’ demands for an interoperable network ecosystem. With Wi-sun FAN common as the foundation of their network, Itron will continue to deliver one of the crucial optimum performing, most comfortable and resilient networks in the industry.”

“Certification ensures interoperability, which is key to the growth of IoT innovation,” stated Phil Beecher, president and CEO of the Wi-solar Alliance. “we are joyful to formally launch the FAN Certification application and are excited for the first wave of FAN certified products to be deployed into the market starting Q1 2019.”

About Itron

Itron makes it possible for utilities and cities to soundly, securely and reliably convey crucial infrastructure features to communities in more than one hundred international locations. Their portfolio of prudent networks, software, services, meters and sensors helps their consumers more desirable manage electrical energy, gas and water materials for the americans they serve. by route of working with their shoppers to be inevitable their success, they support enlarge the first-class of lifestyles, be sure the defense and promote the neatly-being of thousands and thousands of americans entire over the world. Itron is dedicated to making a more resourceful world. be portion of us: www.itron.com.

Itron® is a registered trademark of Itron, Inc. entire third-birthday celebration trademarks are property of their respective house owners and any usage herein doesn't hint or imply any relationship between Itron and the third celebration until expressly brought up.

about the Wi-solar Alliance

The Wi-sun Alliance is a world non-profit member-based association made up of commerce main businesses. Its mission is to drive the world proliferation of interoperable instant solutions to be used in prudent cities, smart grids and other information superhighway of things (IoT) functions using open international requirements from corporations, corresponding to IEEE802, IETF, TIA, TTC and ETSI. With more than a hundred and eighty members international, membership of the Wi-sun Alliance is open to entire commerce stakeholders and contains silicon companies, product companies, functions providers, utilities, universities, enterprises and municipalities and aboriginal executive corporations.

For extra suggestions, delight talk over with: www.wi-sun.org.

Wi-solar Alliance and the Wi-solar Alliance emblem are emblems of the Wi-sun Alliance.


West aspect fitness keeping group awarded $3 million provide | killexams.com real Questions and Pass4sure dumps

A West side fitness keeping community will raise training to aid fitness keeping workers procure greater-paying jobs with a $3 million supply announced Thursday.

West side United spoke of it is going to double its scientific aide certification application and add classes for full-time fitness keeping worker's who wish to earn certification in fitness guidance technology or as nursing assistants. common, the three programs will serve about 70 americans.

West side United is a partnership created in 2018 by using a gaggle of Chicago hospitals and fitness keeping providers, including Lurie infants’s clinic, the prepare dinner County fitness and Hospitals equipment, and Rush institution clinical middle.

The $3 million vouchsafe from JPMorgan Chase & Co. might be received over three years. West facet United is one of five recipients of the fiscal institution’s “Advancing Cities challenge,” which goals to raise job advent and aid little businesses nationwide. The different four recipients are based in Louisville, Kentucky; Miami; San Diego; and Syracuse, manhattan.

West facet United plans to disburse $400,000 for a small-company vouchsafe program for West side groups. The corporation allotted a complete of $85,000 in enterprise delivers in 2018.

“From their listening sessions, community residents time and again talked about the value of dwelling-wage jobs,” mentioned Ayesha Jaco, application director for West facet United. “The outfit will support us enormously scale career pathway courses, [and] will let the neighborhood know that they heard them and are taking action to answer their wants.”

Carlos Ballesteros is a corps member in document for the usa, a no longer-for-earnings journalism program that goals to bolster solar-instances insurance of Chicago’s South and West sides.


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Access MySQL Database With PHP | killexams.com real questions and Pass4sure dumps

In-Depth

Access MySQL Database With PHP

Use the PHP extension for MySQL to access data from the MySQL database.

  • By Deepak Vohra
  • 06/20/2007
  • The MySQL database is the most commonly used open source relational database. It supports different data types in these categories: numeric, date and time, and string. The numeric data types comprise BIT, TINYINT, BOOL, BOOLEAN, INT, INTEGER, BIGINT, DOUBLE, FLOAT and DECIMAL. The date and time data types comprise DATE, DATETIME, TIMESTAMP and YEAR. The string data types comprise CHAR, VARCHAR, BINARY, ASCII, UNICODE, TEXT and BLOB. In this article, you will learn how you can access these data types with PHP scripting language — taking odds of PHP 5's extension for the MySQL database.

    Install MySQL DatabaseTo install the MySQL database, you must first download the community edition of MySQL 5.0 database for Windows. There are three versions: Windows Essentials (x86), Windows (x86) ZIP/Setup.EXE and Without installer (unzip in C:\). To install the Without installer version, unzip the zip file to a directory. If you've downloaded the zip file, extract it to a directory. And, if you've downloaded the Windows (x86) ZIP/Setup.EXE version, extract the zip file to a directory. (See Resources.)

    Next, double-click on the Setup.exe application. You will activate the MySQL Server 5.0 Setup wizard. In the wizard, select the Setup character (the default setting is Typical), and click on Install to install MySQL 5.0.

    In the Sign-Up frame, create a MySQL account, or select Skip Sign-Up. Select "Configure the MySQL Server now" and click on Finish. You will activate the MySQL Server Instance Configuration wizard. Set the configuration character to circumstantial Configuration (the default setting).

    If you're not intimate with MySQL database, select the default settings in the subsequent frames. By default, server character is set at Developer Machine and database usage is set at Multifunctional Database. elect the drive and directory for the InnoDB tablespace. In the concurrent connections frame, select the DDSS/OLAP setting. Next, select the Enable TCP/IP Networking and Enable Strict Mode settings and disburse the 3306 port. Select the yardstick Character Set setting and the Install As Windows Service setting with MySQL as the service name.

    In the security options frame, you can specify a password for the root user (by default, the root user does not require a password). Next, uncheck Modify Security Settings and click on Execute to configure a MySQL Server instance. Finally, click on Finish.

    If you've downloaded the Windows Installer Package application, double-click on the mysql-essential-5.0.x-win32.exe file. You will activate the MySQL Server Startup wizard. result the same process as Setup.exe.

    After you've finished installing the MySQL database, log into the database with the MySQL command. In a command prompt window, specify this command:

    >mysql -u root

    The default user root will log in. A password is not required for the default user root:

    >mysql -u <username> -p <password>

    The MySQL command will display:

    mysql>

    To list the database instances in the MySQL database, specify this command:

    mysql>show databases

    By default, the test database will be listed. To disburse this database, specify this command:

    mysql>use test

    Install MySQL PHP ExtensionThe PHP extension for MySQL database is packaged with the PHP 5 download (see Resources). First, you exigency to activate the MySQL extension in the php.ini configuration file. Remove the ';' before this code line in the file:

    extension=php_mysql.dll

    Next, restart the Apache2 Web server.

    PHP likewise requires access to the MySQL client library. The libmysql.dll file is included with the PHP 5 distribution. Add libmysql.dll to the Windows System PATH variable. The libmysql.dll file will loom in the C:/PHP directory, which you added to the System PATH when you installed PHP 5.

    The MySQL extension provides various configuration directives for connecting with the database. The default connection parameters establish a connection with the MySQL database if a connection is not specified in a function that requires a connection resource and if a connection has not already been opened with the database.

    The PHP class library for MySQL has various functions to connect with the database, create database tables and retrieve database data.

    Create a MySQL Database TableNow it's time to create a table in the MySQL database using the PHP class library. Create a PHP script named createMySQLTable.php in the C:/Apache2/Apache2/htdocs directory. In the script, specify variables for username and password, and connect with the database using the mysql_connect() function. The username root does not require a password. Next, specify the server parameter of the mysql_connect() method as localhost:3306:

    $username='root'; $password=''; $connection = mysql_connect ('localhost:3306', $username, $password);

    If a connection is not established, output this oversight message using the mysql_error() function:

    if (!$connection) { $e = mysql_error($connection); reverberate "Error in connecting to MySQL Database.".$e;}

    You'll exigency to select the database in which a table will be created. Select the MySQL test database instance using the mysql_select_db() function:

    $selectdb=mysql_select_db('test');

    Next, specify a SQL statement to create a database table:

    $sql="CREATE TABLE Catalog (CatalogId VARCHAR(25) PRIMARY KEY, Journal VARCHAR(25), Publisher Varchar(25),Edition VARCHAR(25), Title Varchar(75), Author Varchar(25))";

    Run the SQL statement using the mysql_query() function. The connection resource that you created earlier will be used to hasten the SQL statement:

    $createtable=mysql_query ($sql, $connection );

    If a table is not created, output this oversight message:

    if (!$createtable) { $e = mysql_error($connection); reverberate "Error in creating Table.".$e; }

    Next, add data to the Catalog table. Create a SQL statement to add data to the database:

    $sql = "INSERT INTO Catalog VALUES('catalog1', 'Oracle Magazine', 'Oracle Publishing', 'July-August 2005', 'Tuning Undo Tablespace', 'Kimberly Floss')";

    Run the SQL statement using the mysql_query() function:

    $addrow=mysql_query ($sql, $connection );

    Similarly, add another table row. disburse the createMySQLTable.php script shown in Listing 1. hasten this script in Apache Web server with this URL: http://localhost/createMySQLTable.php. A MySQL table will display (Figure 1).

    Retrieve Data From MySQL DatabaseYou can retrieve data from the MySQL database using the PHP class library for MySQL. Create the retrieveMySQLData.php script in the C:/Apache2/Apache2/htdocs directory. In the script, create a connection with the MySQL database using the mysql_connect() function:

    $username='root'; $password=''; $connection = mysql_connect ('localhost:3306', $username, $password);

    Select the database from which data will be retrieved with the mysql_select_db() method:

    $selectdb=mysql_select_db('test');

    Next, specify the SELECT statement to query the database (The PHP class library for MySQL does not believe the provision to bind variables as the PHP class library for Oracle does.):

    $sql = "SELECT * from CATALOG";

    Run the SQL query using the mysql_query() function:

    $result=mysql_query($sql , $connection);

    If the SQL query does not run, output this oversight message:

    if (!$result) { $e = mysql_error($connection); reverberate "Error in running SQL statement.".$e; }

    Use the mysql_num_rows() function to obtain the number of rows in the result resource:

    $nrows=mysql_num_rows($result);

    If the number of rows is greater than 0, create an HTML table to display the result data. Iterate over the result set using the mysql_fetch_array() method to obtain a row of data. To obtain an associative array for each row, set the result_type parameter to MYSQL_ASSOC:

    while ($row = mysql_fetch_array ($result, MYSQL_ASSOC)) { }

    Output the row data to an HTML table using associative dereferencing. For example, the Journal column value is obtained with $row['Journal']. The retrieveMySQLData.php script retrieves data from the MySQL database (Listing 2).

    Run the PHP script in Apache2 server with this URL: http://localhost/retrieveMySQLData.php. HTML data will loom with data obtained from the MySQL database (Figure 2).

    Now you know how to disburse the PHP extension for MySQL to access data from the MySQL database. You can likewise disburse the PHP Data Objects (PDO) extension and the MySQL PDO driver to access MySQL with PHP .

    About the AuthorDeepak Vohra is a Web developer, a Sun-certified Java programmer and a Sun-certified Web component developer. You can attain him at dvohra09@yahoo.com.

    About the Author

    Deepak Vohra, a Sun-certified Java programmer and Sun-certified Web component developer, has published numerous articles in industry publications and journals. Deepak is the author of the bespeak "Ruby on Rails for PHP and Java Developers."


    Comparing the Technologies | killexams.com real questions and Pass4sure dumps

    Language and Runtime Support

    Java. Developed in 1995 by Sun. entire code is compiled into bytecode and interpreted by a virtual machine (JVM). May likewise be selectively JIT compiled, depending on the JVM, or fully natively compiled with ancillary products (such as JOVE). Can hasten on any platform that supports a JVM. IBM supports v1.3 of the J2SE SDK.

    VBScript and JScript for Web pages and any COM-based language for server components (typically VB or VC++). Scripts are interpreted, while components are natively compiled. VB code likewise requires a runtime DLL (MSVBMxx.DLL). VBScript and JScript came into disburse in 1997, while COM grew out of OLE in 1993.

    Any language that supports the Common Language Runtime (20-plus in development). Initially compiled to an intermediate language (MSIL) and then JIT compiled to aboriginal code by the CLR at runtime or natively compiled (PreJit) at install time. Code written for the CLR is referred to as managed code. support for the CLR will be shipped with future OSes starting with Windows XP Server released by the finish of 2001.

    Class Libraries

    Standard Java classes organize in the J2SE, plus the APIs (JDBC, JSP, EJB, JMS, JAXP, JCA, JFC, JNDI, and so on, as defined in the J2EE specification). In addition, vendors comprise their own extensions to J2EE for integration and differentiation in the marketplace.

    Win32, COM, MFC, ATL, and ASP. Five primary programming models that contain APIs that developers disburse in building solutions.

    Services Framework. A hierarchical set of managed classes arranged in namespaces. Provides a consistent programming model and unifies the APIs needed to build solutions.

    Deployment

    Java Package. Collection of Java classes assembled as a unit and arranged hierarchically. frail versioning. Server-based deployment uses XML-based deployment descriptors, which are read and handled differently by each vendor's implementation. WebSphere includes an application assembly tool to wield this process.

    DLL, EXE. DLLs contain a collection of functions with frail versioning. EXEs represent an executable program with frail versioning. COM components are housed in DLLs, reckon on the registry, and support immutable interfaces but no runtime version checking. Server-based installation accomplished through third-party utilities such as InstallShield.

    Assembly. Unit of deployment, security, and versioning. Includes built-in PKI support and metadata to tightly control binding of assemblies at runtime. support exists in the class loader of the CLR for consistency and version checking. Server-based deployment can be done in a no-impact mode by simply copying the relative paths that contain the application. Applications likewise can explicitly share components. support for the Windows Installer included in VS.NET.

    Thin Client

    Java Server Pages (JSP). WAS supports JavaScript or Java in JSPs that are compiled into HttpServlets on the hover and are cached by the server. No aboriginal support exists for different devices, and there are no client-state services other than cookies. WAS ships with an HTTP engine (1.3.19) but can disburse Apache, Domino, Netscape, iPlanet, or IIS 4.0/5.0. WAS 4.0 is v1.1–compliant. The syntax of JSPs is a knockoff of ASP and was developed in 1998.

    Active Server Pages (ASP 2.0). Technology introduced by MSFT in 1997 in which pages containing server-side code are interpreted by an ISAPI server extension and can disburse simple HTTP caching through headers. No aboriginal support exists for different devices, and there are no client-state services other than cookies. ASP runs primarily on IIS 4.0/5.0 but has been ported to other platforms (see Chili!Soft, purchased by Sun). Performance of JSP and ASP is similar on similar hardware platforms.

    ASP.NET. ASP.NET pages are compiled into MSIL either statically or on the hover when a request is made. Server control architecture allows abstraction for different devices and status storage across HTTP POST events. Server controls allow developers to create "adaptive controls" to render HTML, WML, and so on as commandeer for the client platform. Runs on IIS 4.0/5.0. Beta performance tests betoken a 200–300% improvement over JSP and ASP.

    Web Server Processing

    HttpServlets provide a request/response model available to Java classes in addition to session-state services keyed with a client cookie. JSPs often summon servlets as the controller that acts as the broker between presentation and commerce service layers to provide separation between the HTML and Java code. Because of the complexity of writing servlets many "two-tier Web apps" simply believe the servlets acquire direct calls to the underlying database via JDBC. This leads to spaghetti code that is difficult to debug and maintain. The servlet engine is included in WAS and includes a JDBC connection manager that handles database connection pooling. WAS 4.0 is v2.2–compliant.

    The ASP runtime implemented in the ISAPI server extension provides a request/response model in addition to session- (keyed with a client cookie) and application-state services. ASP pages often summon commerce services directly implemented as COM components, although many "two-tier Web apps" simply believe the ASP pages acquire direct calls to the database via ADO. This leads to spaghetti code that is difficult to debug and maintain.

    The HTTP Runtime in ASP.NET provides an extensible mechanism by which developers can hook into the processing of resources on the Web server through HTTP Modules. Provides very tense integration with the Web server. likewise supports a request/response model and application- and session-state services. Session-state services can be deployed on a separate server to enlarge scalability. Provides a sophisticated caching mechanism for pages and programming code. Provides complete separation of HTML code and programming logic through code behind.

    Object Services

    Enterprise Java Beans (EJB). portion of the original J2EE specification in 1998. Java classes that are deployed in component-oriented middleware (a container) that provides interception and adds services such as distributed transactions (using the Java Transaction Service [JTS] based on the OMG and using IIOP), security, and database connectivity. The container can hasten on the same server or remotely. EJBs Come in two flavors: entity beans and session beans. Entity beans map to the status of an expostulate as represented by a row in a database. Entity beans provide the mapping to the database and caching of the entity. Entity beans Come in two styles: Container Managed Persistence (CMP) and Bean Managed Persistence (BMP). CMP beans allow the container to manage loading and saving the database information, whereas BMP beans provide methods for the developer to insert JDBC code directly. Session beans Come in two flavors: stateful and stateless. Stateful beans maintain a conversation with a single client, whereas stateless beans can be reused by multiple clients, with the container handling the allocation. WAS 4.0 is EJB 1.1–compliant.

    Microsoft Transaction Server (MTS). Provides component-oriented middleware for COM components introduced in 1996. Provides interception and adds distributed transactions through the Microsoft Distributed Transaction Coordinator service (MSDTC), security, and expostulate activation support. Objects can be both stateful and stateless, depending on administrative settings. Programmers capture odds of MTS services through the disburse of an API. Only components built in VC++ are free-threaded and thus effect better. No support for automatically mapping database rows to expostulate instances exists.

    Component Services (COM+ 1.0). Released with Windows 2000 in 2000 and provides component-oriented middleware for COM components. Provides interception and adds distributed transactions, security, expostulate construction, expostulate pooling, queued components (for asynchronous integration with MSMQ), loosely coupled events for publishing and subscribing to components, and activation support. Objects can be both stateful and stateless, depending on administrative settings. Although built for COM, .NET programmers create serviced components in .NET by deriving their class from a system class and decorate it with attributes to picture the services that it uses. The system class then communicates with COM+ via Win32 and COM APIs. No support for automatically mapping database rows to expostulate instances exists. (The IMDB product that was removed from prerelease versions of COM+ would believe served a similar purpose as entity beans, although the ADO.NET DataSet expostulate serves a similar purpose.)

    Database Support

    JDBC. Data Access API that allows SQL access to a tabular data source via drivers (there are currently 159 listed on Sun's site under 4 different types, ranging from JDBC to ODBC bridges to fully native-protocol Java implementations). Various drivers support connection pooling, distributed transactions, and rowsets, and some are J2EE-certified. The API is similar to the Win32 implementation of ODBC. JDBC 2.0 is the spec under J2EE 1.2, but 3.0 has been defined. Note that when using entity beans with CMP, the container provides the mapping to the database tables through a vendor-specific mechanism. WAS 4.0 supports JDBC core v2.1 and Extensions 2.0. WAS includes providers for DB2, MSSQL, Oracle, Informix, and Sybase.

    ADO/OLE DB. OLE DB is both a specification for COM interfaces that database vendors implement (OLE Providers) and a set of services (such as cursor processing and connection pooling) implemented in Windows to provide data access to a variety of data sources. ADO is a simplified automation layer that sits on top of OLE DB to provide data access to scripting languages and COM-based languages such as VB. Although typically used for tabular data access, both ADO and OLE DB can be used to access nonstructured data such as email and XML. OLE DB likewise can be used to access data through the plethora of available ODBC drivers.

    ADO.NET. A set of managed classes that provides access to data sources through what are called managed providers. These comprise TDS (SQL Server), OLE DB providers, and ODBC drivers. Each managed provider implements connections and connection pooling, commands/parameters, forward-only cursor processing, transaction processing, and oversight handling. ADO.NET likewise includes a middle-tier data cache expostulate called a DataSet that provides an XML-based cache of data that can be used to bind to controls and synchronize changes to a data source through an adapter expostulate implemented by the managed provider. Designed to support a loosely connected model with built-in XML representation of the data and XSD representation of the schema. Developers can toil with relational data as XML data, and vice versa through the XMLDataDocument class.

    Messaging

    Java Messaging Services (JMS). JMS is a set of client interfaces to message-oriented middleware (MOM) products that supports both message queues and publish-and-subscribe metaphors. MOM vendors implement JMS providers. JMS includes a specification for a new character of EJB, message beans. WAS includes the (WebSphere MQ) MQSeries JMS provider. WAS 4.0 is compliant with the 1.0.2 specification and includes support for JMS-XA distributed transactions across MQSeries-enabled systems and databases. exigency to obtain WebSphere MQ separately.

    Microsoft Message Queue Server (MSMQ). A MOM server product running on NT 4 and W2K that supports message queues but does not comprise a publish-and-subscribe feature built into the product. The product includes a COM-based API for sending and receiving messages and administering queues. Supports distributed transactions through MSDTC. MSMQ is built into Windows NT 4.0 Server.

    System.Messaging. A set of managed classes that provide the administrative and client APIs for working with MSMQ servers. MSMQ is built into Windows 2000 Server. It should be celebrated that developers can access MSMQ through queued components (QC) supported by COM+ 1.0. QC acts as an abstraction layer to allow clients to asynchronously acquire method calls on components that are backed by MSMQ.

    Fat Client

    Java Foundation Classes (JFC). JFC includes the Abstract Windowing Toolkit (AWT) and swing as Java APIs for building GUII applications. swing is a more abstract API and includes a "look and feel" for developing the same GUI on multiple platforms or adhering to a platform standard. Advanced graphics can be created with the Java2D and 3D APIs. GUI apps hasten as standalone applications or applets running in a browser.

    Win32/ActiveX. Applications written in VB, VC++, or other Windows progress tools. Ultimately these tools acquire calls to the Win32 API for the underlying window management. ActiveX is a COM-based technology for building reusable binary visual components (.ocx) across progress environments. Applications hasten as standalone applications or as ActiveX controls hosted in MSIE. Advanced graphics are available through the DirectX set of COM-based APIs.

    Windows Forms. Set of managed classes that allow for the creation of forms-based applications. Takes odds of new Windows 2000 features such as nonrectangular forms. Includes a managed control architecture to build reusable visual controls. Third parties will provide wrappers for DirectX functionality. Windows Forms–based applications can hasten as standalone applications or can be hosted in MSIE on clients with the CLR installed.

    Integration

    J2EE Connector (JCA). JCA is a specification based on the IBM Common Connector Framework (CCF). WAS contains WAS adapters used to connect to packaged applications such as JDEdwards, SAP, Peoplesoft, and so on. These are JCA-compliant and are shipped with VisualAge for Java. You can likewise build new adapters using the MQSeries adapter offerings. WAS AE multiserver version only.

    SNA Server 4.0. Server product that includes OLE DB and ODBC support for AS/400 and DB2. likewise includes COM Transaction Integrator (COMTI) for working with CICS and IMS transactions as if they were COM objects. Includes MSMQ-MQSeries bridge and host printing services, among others. Basically, this is COM-based integration, and there are likewise connectors to packaged products such as the SAP DCOM Connector.

    Host Integration Server 2000. Update of SNA Server. likewise includes integration with Commerce Server, BizTalk, vigorous Directory, and Windows Management Instrumentation (WMI). BizTalk likewise supports application-integration components (AIC) that can be built to integrate with packaged applications; for example, there is a SAP R/3 AIC available.

    XML Support

    Java API for XML Parsing (JAXP). An API and abstraction layer to deal with various XML parsers. Not included in the J2EE 1.2, but 1.0 is in 1.3. v1.1 supports XSLT and DOM smooth 2 and SAX v2.0. IBM has a 100% Java validating XML parser with JAXP support available on its Web site. WAS includes support for DOM 1.0, SAX 1.0, and XSLT 1.0.

    MSXML. Microsoft's COM-based XML parser, included as a standalone addition to the OS and in products such as MSIE. Version 3.0 sp1 is the current version, with v4.0 as a technology preview on the MSDN Web site. V3.0 supports XSLT, XPath, and SAX2. Implements much of the DOM functionality specified by the WS3C, in addition to SAX support for event-based processing of great XML documents.

    System.Xml. A set of managed classes that implement the DOM, XSLT, and XPath specifications by the W3C. Supports both a tree-based model (DOM) and an innovative stream-based approach for parsing XML documents. likewise contains a class that maps XML documents to the ADO.NET DataSet class to provide XML-based access to relational data.

    Web Services

    WAS ships with the Apache SOAP 2.2 tool support. The toolkit is SOAP 1.1–compliant. Can expose Java classes, EJBs, BSF scripts, or DB2-stored procs as a Web Service. Includes a command-line utility to publish EJBs as SOAP services. progress tools contain wizards to create WSDL from an existing Java application or read WSDL to create a server stub or client proxy. UUDI4J support is likewise included for client-side interaction with UDDI registries.

    SOAP Toolkit 2.0. Downloadable. Current release is sp2. Provides a COM wrapper for implementing Web Services. Wizard exposes COM objects as a Web Service using ASP or IIS ISAPI extensions. support for WSDL 1.1. A separate UDDI SDK is available for download, and provides a COM API for building and querying a UDDI registry. The toolkit integrates into VS 6.0 so that creating Web Services from COM components is straightforward.

    .NET Framework. SOAP 1.1 is implemented in a variety of the foundation class libraries and, therefore, is very tightly integrated from both consumer and implementer perspectives. Allows individual methods in managed classes to be exposed as Web Services through an impute of the framework. Automatic creation of WSDL from XSD schemas and managed classes. Automatic creation of managed client proxies from WSDL through the command line and UI in VS.NET with full Intellisense. A separate UDDI SDK is available for download that provides managed classes for building and querying a UDDI registry.

    Remoting

    Remote method Invocation (RMI)-Internet InterORB Protocol (IIOP). Provides the programming model (RMI) and the protocol layer for (CORBA IIOP) Java-to-Java communication. Servlets and applets communicate with EJBs via RMI. Assumes a tightly bound model that creates firewall issues and is not well suited to the Internet.

    DCOM. Extension of COM for component communication across the network using any of the Windows NT network protocols. Includes remote activation and security features. Remoting of expostulate instances must be specifically programmed into the COM objects themselves. Assumes a tightly bound model that creates firewall issues and is not well suited to the Internet.

    .NET Remoting. Implemented in a set of managed classes. Allows managed code to communicate across app domain boundaries. Can communicate via HTTP or TCP channels. Supports remoting of expostulate instances via binary or SOAP protocols. Supports singletons and client activation. The disburse of HTTP and SOAP promotes a loosely coupled architecture that does not incur firewall problems.

    Naming Services

    Java Naming and Directory Interface (JNDI). Programming interface that provides access to directory services such as DNS, LDAP, Novell (NDS), and CORBA COS through vendor-specific providers.

    WAS 4.0 is JNDI 1.2–compliant for EJB lookup. The IBM SecureWay Directory 3.2.1 product is included in WAS for access to vigorous Directory, Lotus Domino, and NDS.

    Active Directory Services Interface (ADSI). COM programming interface that supports access to NT, LDAP, and Novell (NDS) directory services through vendor-specific providers.

    Active Directory and System.DirectoryServices namespace. Windows 2000 Server includes the distributed directory used in a Windows 2000 domain while the managed classes, in DirectoryServices provide a wrapper around the ADSI interfaces to programmatically access a directory.

    Development Tools

    WebSphere Studio, Visual Age for Java. Both ship with WAS. Studio is used to build the visual representation of Web pages and JSPs, while Visual Age is used for Java coding of servlets, beans, and EJBs.

    Visual Studio 6.0, released in 1998 (three IDEs). separate IDEs exist for VC++/Visual Interdev for ASP development, and VB for configuration and component development. Graphical Web development.

    Visual Studio.NET. single IDE that supports unified debugging, project management, Intellisense, Server Explorer, graphical editor for the Web and forms, class view, dynamic help, add-ins, and scripting. Can be used to build console applications, Windows Forms, Web Forms, Web Services, Windows Services, and components. Third-party compiler vendors can plug into VS.NET.

    B2B Integration

    ebXML. An industry specification (not a shipping product) for performing business-to-business transactions using XML and the Web. Includes some support for SOAP. Not implemented in WAS. Would exigency to roll your own infrastructure perhaps using Web Services.

    No support on NT 4. Would exigency to roll your own infrastructure using the SOAP Toolkit and Windows services.

    BizTalk Server 2000, released in 2000. A separate server product that provides a messaging/scheduling engine and commerce process orchestration facilities. Messaging includes support for EDI, SOAP, and Rosettanet grammars, in addition to others.

    Key Strengths

    For organizations that must believe platform neutrality, J2EE is the only alternative. The Java language is becoming more widely accepted. Vendors such as IBM proffer a single-vendor solution when dealing with legacy applications. Separation of application logic and presentation exists, although, in practice, this is underutilized. EJB model includes automatic database-mapping facilities through CMP.

    Large foundation of VB/ASP developers, resulting in reduced costs. Runs on commodity servers that can be scaled out. Software costs are low. Multiple language support through COM. tense integration with the preponderant client platform (Windows).

    Multiple languages supported with a common set of class libraries. Unified programming model with the Services Framework. high productivity progress environment. Web application performance. Runs on commodity servers that can be scaled out. Separation of application logic and presentation exists. Greater integration with XML and Web Services protocols. tense integration with the preponderant client platform (Windows).

    Key Weakness

    Single-language solution. Smaller foundation of developers. EJBs are complicated and not widely used. Thus, JSPs are overused, resulting in spaghetti code. Varying levels of J2EE conformance across vendors. The exigency to disburse vendor-specific features leads to vendor lock-in. Performance varies due to vendor-specific implementations. Software cost is generally higher, developer costs are higher, and deployment time is increased.

    Highly fragmented programming model. COM infrastructure is unwieldy, leading to DLL hell and versioning problems. ASP pages that enact not utilize COM for commerce and data-access services lead to spaghetti code. Single-vendor solution.

    Not a shipping product. OO nature of CLR makes progress initially more complicated for VB/ASP developers. Single-vendor solution. Does not support an automatic mapping of database rows to objects as with CMP, although there is widespread disagreement within the industry as to whether entity beans are desirable because they enact not promote transactional consistency and are questionable in terms of performance. For more information, espy Roger Session's Web site.


    Delivering on the plight of 'plug and play' | killexams.com real questions and Pass4sure dumps

    Delivering on the plight of 'plug and play'
  • By Dan Verton
  • Dec 05, 1999
  • When the Defense Department in 1993 began to search for a replacement to the antiquated World Wide Military Command and Control System, there was no system capable of meeting entire the requirements for commanding military forces on a global scale.

    But officials soon realized that a cross section of the best features from the best systems might be enough to develop a cutting-edge prototype command and control system capable of replacing WWMCCS. That system is known today as the Global Command and Control System.

    The search for GCCS did more than simply find a suitable replacement for WWMCCS. It spawned a new era in software progress for DOD, characterized by a collection of reusable software components and common data standards that slash across entire of the military services and their missions. This new era is the age of the Defense Information Infrastructure Common Operating Environment.

    The DII COE offers system developers and programmers a blueprint depicting a stable baseline of programming code that can be used to develop applications that reckon on common data exchange tools and thus purge interoperability problems.

    The "reference" computing platforms that serve as starting points for application progress and testing comprise Microsoft Corp.'s Windows NT, Hewlett-Packard Co.'s HP-UX Unix, Sun Microsystems Inc.'s Solaris and, most recently, Compaq Computer Corp.'s Tru64 Unix.

    Although the original scheme of establishing a common operating environment focused primarily on the command, control, communications and intelligence community, the DII COE has matured greatly during the past five years and is beginning to gather benefits for information technology programs throughout the Defense Department.

    Because of the standards that systems must adhere to under the DII COE, military commanders in the territory can view information from different - and sometimes service-specific - applications using a single workstation.

    DOD and industry representatives hiss the scheme is a helpful one and is helping DOD overcome the age-old computer challenge of interoperability.

    "We've made remarkable progress," said Dawn Hartley, chief technology officer at the Defense Information Systems Agency, the agency answerable for overseeing the COE effort. "It has definitely impacted the command and control community in terms of interoperability," she said.

    In fact, "we espy folks dote Air compel Materiel Command, the Defense Finance and Account-ing Service and other organizations embracing the COE as the basis for entire of their future infrastructure work," Hartley said.

    Marv Langston, DOD's deputy chief information officer, said the current strategy is to grow the COE effort beyond the C2 community so that other IT programs throughout DOD can capture odds of it.

    The issue, according to Langston, is simple. "If you don't upshot the same computer software module on both sides of a computer interface, it's almost impossible to acquire it work," he said. "We likewise know that if you modify commercial off-the-shelf programs to support your own special needs, you procure yourself into trouble," Langston said. "The [COE development] toil we've done in C2 and combat support has helped us learn a lot."

    At What Cost COE Compliance?

    For the DII COE, interoperability is measured in terms of the smooth of integration achieved by the vendor's product with the standards set forth by the COE. The eight levels of compliance, with smooth 5 being the minimal compliance smooth that entire vendors must shoot for, capitalize DOD determine the attribute of a software product's progress and code architecture.

    At smooth 5, applications running on the COE loom integrated to the user, but full interoperability cannot be guaranteed. (For compliance smooth descriptions, espy box, Page 22.)

    "Don't Come espy me if you're not smooth 5-compliant," said Army Brig. Gen. Steve Boutelle, program executive officer for command, control and communications systems at Fort Monmouth, N.J., during the recent Milcom '99 conference. "Level 7 takes a lot of money, and I've never seen a smooth 8 system," he said, adding that a lot of toil remains to be done throughout DOD on standardizing data.

    Although smooth 5 compliance is the goal, Dave Hale, branch chief at the DII Air compel organization at the yardstick Systems Group's Infrastructure support Division, said new programs are targeting COE smooth 6 compliance, which brings more integration and better security. In addition, the policy upshot in belt by the Electronic Systems Center, SSG's parent unit, establishes smooth 6 as the mandatory compliance smooth starting in January 2002.

    Vendors understand Boutelle's commitment to smooth 5 compliance and coincide the COE effort is having a practical impact on systems interoperability, but some hiss the certification process could be easier on vendors, particularly their wallets.

    Steve Sundman, manager at The Santa Cruz Operation Inc.'s Government Systems Division, which plans to submit its UnixWare7 operating system for compliance certification in the next two weeks, said the "significant" cost associated with porting and testing an application for COE compliance favors Windows NT, HP-UX and Solaris-based vendors because the government paid for the initial certification of those platforms.

    "Today, COE is about either you believe an Intel [Corp.] box that runs NT or you believe a Unix box that runs proprietary applications," Sundman said. "The only route it's accomplished commonality so far is through designation and that's not open standards to me. As long as we're soundless in a reference platform basis, we're soundless in a situation where the government has established a COE that locks out inevitable competitors. [That is] unfair."

    Sid Mair, national manager for Government Programs at SGI Federal Systems, whose Irix 6.5 operating system is in the kernel certification process, said he too would dote to espy entire vendors on a more equal footing. The cost of testing and certification "affects the aptitude of vendors, other than the primary reference vendors, to compete," Mair said. "It costs industry a mighty deal of money, and they believe to enact it."



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