Saturday, October 8, 2016

WebSphere Application Server Interview Questions - Part -2

1) what are the different components in Wily Introscope ?

A)      1) Collector
          2) MOM (Manager of Managers)
          3) Webview (thin client)
         4)  Console (Thick Client)




2)    In which log file garbage collector information will be recorded ? how to enable garbage collector ?

A)  ----> Nativestdout.log Nativestderr.log are GC logs 

    ---> get into the admin console ->applicationserver->select JVM->Java & Process Management->process definition-> Java Virtual Machine.

There u will have an option to enable GC logging.





3)   How can we check the performance of the application server without external monitoring tools?



A)  Through Websphere in build monitoring tool called Tivoli Performance Monitoring under Monitoring and tuning in Admin Console.
                              (or) 

Tivoli Performance Viewer (TPV): It enables the administrators and programmers to monitor the overall health of the WebSphere Application Server without leaving the Admin console.
From TPV, you can view current activity or log Performace Monitoring Infrastructure(PMI) for the following:
- System resources such as CPU utilization.
- WebSphere pools and queues such as DB connection pool.
- Customer Application data such as servlet response time.


4) How many plugins are required by http server ?

A) ONLY ONE 

5)  what is a collector tool ?

A)  ----> Collector is a tool which provides all log files. These log files contains failure info. 
      ----> If the bugs cant be cleared by administrator, then by using this tool we will send all log files to IBM people.

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