IBM Interview Questions-1 in Websphere Application Server

Part - I: IBM INTERVIEW  

1. Tell me about your educational background.
2. Tell me about your day to day activity.
3. what is load balancing?

A) Edge component, BIGIP product hardware load balance.

It will be connected to router and switches, Webserver – to – app. server load balancer
4. What is Work Load Management?

A) Failover, High availability, scalability and security are coming from Clustering (WLM).

Two main features are - Load Balancing - AffinityWebSphere WLM is offering these two features on different levels like - Application/web Server Clustering

5. what is meant by profile? How many types of profiles are there in Was v6.0?

A) 3 types of profiles in 6.0 1.application server , 2. dmgr, 3.default

in 6.1 there are 4 – 1.dmgr, 2.app.serv, 3.default,4.cell profile(already federated appserver profile)
6. how you fedarate a node from deployment manager? and how you federate when global security is enabled.?

A) we can federate it from console, need to select Node under system administration section, then select a new node button then provide required(soap port) data.
7. What is SSL ? hOW You configure SSL?

A) It is Already been configured will use dummy, web server part, certificate, configure in that virtual host.
8. What is meant by Horizontal Clustering? Explain?

A) DONE
9. How to check disk usage in linux or unix?

A) Du -k
10. How to check the multiple NIC in Unix or linux?

A) ifconfig -a
11. How to identify and kill a process ID?

A) Ps –ef
12. What are the measures you follow while deploying an application in production environment?

A) we need to consider below steps.

1. need to take necessary backups, 2. Raise a change request, 3. Approval request, 4. schedule date from change control.
13. what is the use of trace.log and activity.log?

A) we can use “showlog” commad in bin directory for getting tracer information.
Trace.log : It will have details about the WAS Environment, understandable text format.

Activity.log : It will have complete information about Application server environment, and it is not in readable format, “waslogbr.bat” for opening/viewing this log. It will have information about complete base class and other stuff. We have to use “symptom database” for fixing/compare identifying the issue.

15. where do you get performance information in log files of an application server?

A) there are 2 logfiles

1. NativeError.log – at what state the GC happened and how much memory freed up.

2. NativeOut.log – it is having general logs.