 Related Questions Which of the following are benefits of Server Clustering? A ReplicationB High SecurityC Easy ManageabilityD Load BalancingE Choices A, D and E are correct. Through the use of replicas, server clusters increase the reliability and availability of a system. They provide a fault tolerance mechanism with load distribution Tags : Replication CORBA is a standard for A Messaging using virtual channels called QueuesB Standardized development practicesC Messaging using virtual channels called topicsD Accessing distributed object Choice D is correct. Common Object Request Broker Architecture (CORBA) is a standard for distributed communication involving applications written using different languages. Hence choice D is Which of the following are not true about Screen Scrapers? A Screen scrapers function as Terminal Emulators on one end and as Object Interfaces on the other.B Screen Scraping may be a useful tool when used in conjunction with the off-board servers.C Changes to Choices C and D are correct. When using screen scrapers, any changes to the legacy user interface will also affect the new GUI. Also screen scraping is the best alternative only if the existing Undefined Primary Keys refers to? A Refers to Entity Beans that do not use Primary KeysB Primary Keys that are defined during developmentC Primary Keys that remain undefined until the bean is deployedD Choice C is correct. One problem with container-managed persistence in EJB 1.0 was that the bean developer had to define the primary key during development. This forced the developer to make Both CMT and BMT may be used with Entity and Session Beans. True or False? A TrueB False Choice B is correct With EJB1.1 only Session Beans with equal to 'Bean' can have bean-managed transactions. Entity Beans are not allowed to be BMT beans. Hence choice Which of the following is not a resource management technique? A Maintaining a smaller pool of Stateless Beans to serve a large number of clients.B Providing Database Connection PoolingC Persistence of Entity BeansD Choice C is correct. Persistence of Entity beans is the ability to save data represented by the bean into a database. It is not a resource management technique. Choice C is false and therefore HTTPS is defined as A HTTP with SecurityB HTTP on secure lineC HTTP over SSLD HTTP with SSL Choice C is correct HTTPS stands for HTTP over SSL. With HTTPS, SSL sits above the TCP-IP layer and below the application protocol layer. Hence choice C is correct. HTTP is A Connection LessB Connection BaseC StatefulD StatelessE Secure Choice B and D are correct. HTTP (HyperText Transfer Protocol) is a transport mechanism for MIME (Multipurpose Internet Mail Extensions) documents. MIME documents often contain HTML (HyperText Asynchronous communication is achieved by using: A Remote Procedure CallsB RMI/IIOPC Message Oriented MiddlewareD CORBA Choice C is correct. Message Oriented Middleware or MOM is used for asynchronous messaging between applications. Most popular implementations support Point to Point (one to one) and Publish Which of the following is not part of the Messaging architecture: A Decentralized messaging using IP MulticastingB Decentralized messaging using Secure Sockets Layer (SSL)C Use of virtual channels called QueuesD Choice B is correct. Only choice B is not a standard paradigm in messaging architecture. Hence choice B is correct.IP Multicasting can be used as a technique for decentralized messaging. Queues
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