WebSphere Application Server Questions [part-5]


1.WHAT IS TRACING?
Tracing is when you go through an entire program and record the value of variables and the output. You trace a program when you want to find out what actually went wrong

2.WHERE TO GIVE APPLICATION PRIORITY WHILE STARTING SERVER?
it will be under Enterprise applications ->app name -> startup behaviour ->Startup order   in the admin console

3.HOW TO MOVE CODE DEV ENVIRONMENT TO TESTING ENVIRONMENT?
I’m sure what they mean by code here. I think, incase of applications, export them from in DEC and deploy in TEST.

4.WHAT IS SSL?WHEN IT ENCRYPT & DECRYPT THE DATA?
SSL are digital signed certificates. user for meesage/communication integrity and confidentiality.  Generally encrypt at Sender side and decrypt at receiver side

5.WHAT IS INCIDENT MANAGEMENT?
It is part of ITIL process….. simple explanation is, when there is a problem in ur WAS environment, which procedure do you follow.

6.WHEN APPLICATION IS DOWN WHAT U WILL DO?
First look at the logs for errors. If you find the error, save the logs and start ur application. Then start trouble shoot.
If no error found, run a trace and look for FFDC etc..

7.I HAVE 16GB RAM,WHAT IS THE MINIMUM & MAXIMUM HEAPSIZE ?
No relation. Heap settings should be made depends on application

8.HOW TO OPEN ADMIN CONSOLE IN AIX/UNIX & WHAT IS THE DEFAULT FILE SYSTEM OF AIX?
admin console can be viewed from remote machine which has a browser, if not behind firewall.

9.WHAT IS FILE DESCRIPTORS IN AIX?
A file descriptor is a handle created by a process when a file is opened. There is a limit to the amount of file descriptors per process.If the file descriptor limit is exceeded for a process, you may see the following errors:”Too Many Open Files”

10.HOW TO RESOLVE PORT CONFLICTS IN PRODUCTION ENVIRONMENT?
check why there is port conflict
run updateports script in WAS

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