 Related Questions Which of the following are true about Active Replication? A It is a fault-tolerance mechanismB It is achieved by taking cold back upsC Each replica attempts to process each request but extra calls may be intercepted via an interceptorD Choices A, C and F are correct. Active Replication is a fault tolerance mechanism where each replica is identical to the main service and attempts to service each request. An interceptor is used to Tags : Replication 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 Which of the following are true about Passive Replication? A Primary Service and all replicas respond to all requestsB Primary Service randomly delegates requests to one of the secondary replicasC Primary service handles all requestsD Choices C, D and F are correct. In Passive Replication, the primary service handles all requests. The state of the replicas is periodically synchronized. In the event that the primary service 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 RMI-IIOP does not provide which of the following capabilities? A Remote Method InvocationB Stub DownloadsC Objects pass by value (state only)D Distributed Garbage Collection Choices B and D are correct. RMI-IIOP does not support Stub downloads and distributed garbage collection. Hence choices B and D are correct.Both Remote Method Invocation and Objects pass by 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 A session bean called SomeBean has a method called someMethod(), which calls someOtherMethod (same bean) followed by someOtherBeanMethod() of SomeOtherBean. SomeOtherBean is an Entity Bean with CMT. Which of the following is true? A SomeOtherBean has no control on the transaction since it is a CMT bean.B SomeOtherBean has full access Choice C is correct. Only BMT beans have access to the User-Transaction from the EJBContext. The EJBContext provides the methods setRollbackOnly() and getRollbackOnly(), to provide CMT beans 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
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