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

 What is the sequence of steps in the life cycle of a Stateless Session Bean? A             class.newInstance(), setSessionContext (ctx), ejbCreate()B              ejbCreate(), setSessionContext (ctx), class.newInstance()C              class.newInstance(), ejbCreate(), setSessionContext (ctx)D             

 Choice A is correct. When Stateless Session Beans transition from 'Does Not Exist' to 'Method Ready Pool', the container invokes newInstance(), setSessionContext() and ejbCreate() 

 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 

  Happy Joe Banking Corporation is building a Banking application to provide online access to their account holders. They have chosen 2 SUN 450s for their web server cluster and 1 SUN E10000 for their application server. The business requirements indicate that to become a customer, a person must have at least a primary checking account with the bank. Further since the customer will be using the Internet to view confidential information, security is considered paramount.What do you understand

 Choice D is correct. Successful software architecture deals with addressing the non-functional service level requirements of a system. The Design process takes all the functional business requirements 

 Fragile Oars, a manufacturer of boating supplies has a mainframe based legacy application for customer and order management. Recently, Fragile Oars embarked on a project to add Internet presence to its products and services and hence created a company website. Since then, its management has realized the importance of having an eFront and wants to start conducting business over the Internet. Fragile Oars wants to use Applets as the front-end. What is the best method to connect to this legacy

 Choice D is correct. The best approach in this case is to have the applets talk to Servlets that can act as mediators between the applets and the Legacy system. Hence choice D is correct.Applets 

 What design pattern best explains the use of the stub and the skeleton in CORBA based RPC applications? A             Factory MethodB              SingletonC              StrategyD              ProxyE             

 Choice D is correct. Proxy (GOF 207)"Provide a surrogate or placeholder for another object to control access to it." Hence choice E is incorrect. The applicability section (GOF 208) 

 An application has three Stateless Session Beans - SB1, SB2 and SB3. The stubs that implement the respective Home Interfaces are SH1, SH2 and SH3. A client application performs a JNDI lookup to obtain a reference to one of these Home Objects. This is then narrowed and used to create the remote reference to the corresponding remote object. What design pattern best explains the creation of the Remote Object, in this case? A            

 Choice C is correct.                                 

 Compact Computers is a small computer assembly company. Their online application allows customers to pick and choose accessories to build their own PCs. The accessories are: i.              Processor - 800Mhz, 1Ghz, 1.2Ghzii. HDD - 40 GB, 60 GB, 80 GBiii. Memory - 128 MB, 256 MB, 512 MB If a computer can have exactly 1 processor, 1 HDD and 1 memory stick, what pattern would be best used here? A            

 Choice B is correct. Builder (GOF 97) separates the construction of a complex object from its representation so that the same construction process can create different representations. Here 

Tags : Abstract

 The container applies what memory management techniques in the case of Session Beans? A             Bean PoolingB              Bean PassivationC              Bean PersistenceD              Bean Purge

 Choices A and B are correct. While EJBs offer business services, EJB Containers offer many peripheral services such as memory management, persistence, transactions and so on. Bean Pooling (in 

 Outstanding Perf is a perfume manufacturing company. The management is currently in the process of architecting a new J2EE based solution for their online catalog. If performance is paramount and session state needs to be managed as well, it would be preferable to use HTTP and HTTPSession object as opposed to using HTTPS. True/False? A             TrueB             

 Choice A is correct. The question specifies that performance is important. There is no mention of the security requirements. Apart from providing Session State, HTTPS includes additional functionality