was interview questions / IBM WAS interview Questions Part 2 - Middleware News

was interview questions / IBM WAS interview Questions Part 2 - Middleware News
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1. What is the difference b/n web and app servers

2. What are the new features in WAS ND 6.1

3. How many types of profiles are available in WAS ND6.1

4. What is a Cell

5. What is NodeAgent

6. What is DMGRs default admin port

7. What are the pre-perquisites for installing WAS

8. While installing WAS, if the installation fails and no logs are found. Which location should you check for the details

9. While installing WAS, can we create any CELL in WAS ND 6.1

10. After installing WAS, you found INSTALLCONFPATIALSUCCESS in the install log, what does it mean?

11. While installing as non-root, can WAS detect other existing WAS installations

12. Which file hold the existing WAS installation details

13. After installation you found that some ports are conflicting, how do you change/update the ports

14. Where do you find the installation logs

15. if the DMGR is not running, can you start the other JVMs?

16. While installing using silent installation method, if you do not wish to install sample applications. Which parameter should you change in the response file?

17. You have been asked to install WAS and create a CELL profile, how many response files do you need?

18. How do you get a new nodeagent

19. After you install the WAS, how do you verify the installation

20. How do you delete a profile?


Part-3
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1. what is the difference b/n managed and unmanaged node
managed node has a nodeagent

2. Which is the tool provided by IBM for key management in IHS/WAS
ikeyman

3. what is a virtual host ? what are the default virtual hosts in WAS
admin_host, proxy_host, default_host

4. where do you find the port numbers of a JVM (config file name)

5. which component initilizes the sync process in a cell
Node

6. you have edited some config files at JVM level, and the JVM was restarted after some time. What will happen to the changes you done to JVM config files
changes will be discarded as the sync is one way (from DMGR)

7. How do you administrate a webserver from websphere admin console
create a webserver definition and add it as managed/unmanaged node

8. what is the name of the plug-in configuration file
plugin-cfg.xml

9. You have added a new virtual host to the WAS, what should you do for the webserver to be aware of this addition
generate and propagate the plugin

10. describe the steps to configure SSL b/n WAS and IHS

11. how do you take backup of all the config files of a profile
run backupconfig from profile bin

12. how do you apply a fixpack
- Stop all the JVM/Node/DMGR on which you are going to apply fixpack
- first check and update the update installer
- Place the .pak files in maintenance folder of updateinstaller directory
- create the response files
- run ./update.sh -silent -options”path-to-responsefile”
- check the versioninfo fron the WAS bin directory

13. How do you generate a cell level plugin configuration file
in console…. check under administration section

14. If nodeagent is stopped, can you perform the sync
no
in adminconsole Answer is No
and if we r doing syncnode by command mode then
Nodeagent should be stopped..

15. How do you federate a node to cell
addnode command




Part-4
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what is cluster

how do you create a cluster
go to servers -> clusters-> new ->give cluster_name->define first member->define other members->finish

how do you add a new cluster member
go to servers -> clusters->cluster_name ->cluster members ->new ->give name/node/others->apply->ok->save

one of the cluster member (jvm) is having issues. To troubleshoot the issue, you decided to take it out of the cluster. How do you do that?
Make its runtime weight to 0

In a complex environment, there are 10 machines. Machine A is having 8GB RAM and machine B having 2GB of RAM. The administrator decided to send twice as many request as machineB to machineA. How can he achive it?
give machineA twice the weight as machineB

After making some changes on a cluster, it is required to recycle/restart all the cluster JVMs. The lead admin told you to make sure that there should not be any downtime during this recycle. Which option do you use to achieve it?
Ripplestart

A large application which has 5web modules has been deployed on to a cluster. After some months, the developer asked you to update on of the 5web modules. How do you do it?
Rollout

what is a backup cluster

can you change the cluster name, once it was created
No