Answer:- A caching proxy can be configured in forward direction or as a proxy. When user requests the content, it is cached by the edge before sending or following to the query. Page fragments arising from Servlets or JSP are cached by Edge, and the Caching process becomes Slow. Performance and scalability can be optimized by edge.

Answer:- Caching server provides functionality like • Reverse proxy and content based routing • Integration with servlet caching and dynamic content caching

Answer:- Websphere MQ programming APIs include • AMI (Application Messaging Interface) • JMS (Java Message Service) • MQI (Message Queue Interface)

Answer:- Class loader policy, JAAS authentication aliases and virtual host information can enhance EARs support apart from EARs support and shared libraries.

Answer:- In Websphere application can be deployed in three ways • Copy files directly to deploy application folder in websphere • Use websphere specific ant tasks create automated scripts for deploying application • Via administration console

Answer:- WAS (WebServer Application Server) stores all the configuration in one central location referred as “Master Repository”. The sync ensures the configuration in both local and master repositories are same and in sync.

Answer:- Connecting pool is a cache of database connections maintained so that connection can be re-used when future requests to the database are required. If all the connections are occupied, a new connection is created and is added to the pool.

Answer:- Websphere is focused more on connectivity, integration, and web services. It has better performance, rich implementation of J2EE, more extensive integration and transaction management compare to Weblogic. Weblogic has default transaction attributes as supports, while websphere does not have such type of the default transaction attribute.

Answer:- • Jasper is a Tomcat’s JSP engine • It parses JSP files to compile them into JAVA code as servlets • At runtime, Jasper allows to automatically detect JSP file changes and recompile them

Answer:- It displays the default tables in the database

Answer:- You have to follow the standard instructions for when the isapi_redirector.dll Configure IIS to use “integrated windows security” Ensure that in the server.xml you have disable tomcat authentication

Answer:- The default port for Tomcat is 8080. After initialising Tomcat on your local machine, you can verify if Tomcat is running the URL: http://localhost:8080

Answer:- In Tomcat, two types of connectors are used • HTTP Connectors: It has many attributes that can be changed to determine exactly how it works and access functions such as redirects and proxy forwarding • AJP Connectors: It works in the same manner as HTTP connectors, but they practice the AJP protocol in place of HTTP. AJP connectors are commonly implemented in Tomcat through the plug-in technology mod_jk.

Answer:- Catalina consists of configuration files are • policy • properties • properties • xml • xml • Tomcat-users.xml • xml