IBM
Interview questions
================================
How
to create weblogic domains using jython scripts and configuration wizard?
ssl
certificate generation and installation?
how
to generate selfsigned certificates and trusted certificates?
What
is the difference b/w one way ssl and two way ssl certificates?
apache
installation and integration with weblogic server?
where
will you copy the modules into apache server?
What
is auto deployement in weblogic?
How
many types of deployment modes available in weblogic? What is the difference
b/w staging and nostaging mode?
What
is the difference between unicast and multicast messaging modes in cluster?
In
unicast how does group leaders comunicate?
How
do you achieve cluster session replication?
How
to configure multipool in weblogic?
What
is the deployment order? How to set the deployment order?
How
to find out memory leaks?
How
many types of garbage collection are there? What happens if major collection is
not happening?
How
do you enable garbage collection logs? Which command is used to generate
garbage collection?
How
to generate heap dump in weblogic? Explain the command?
Will
the heap dump be generated automatically when we get an out of memory error? If
yes, Which flag do you use to generate the heapdump automatically?
What
is the difference between server hang and crash?
What
is the difference b/w core dump and heap dump?
How
to generate core dump?
How
do you take thread dump in weblogic?
How
to write a wlst script for deployment?
how
to troubleshoot jdbc and jms issues?
Where
the weblogic cache will be stored after the deployment?
How
to configure foreign JMS servers?
What
is jms bridge and why do we use it?
how
to check list of available port numbers?
how
to check running servers in linux?
What
is the command to find out the operating system version?
How
do you install patches in weblogic?
How
to schedule the job in crontab? and what are the parametes do you use to set a
job?
what
is "at" command in unix?
**************************
NTTDATA Interview questions
================================
1)
Introduction to you self?
2)During
deployment u can face memory issue how can u handle?
3)About
garbage collection and its algorithems?
4)about
session replication, types, configuration?
5)Entire
about ssl, types, certificate genaration, an its configuration in admin
console?
6)
about Thread dump, how to take thread dump, how to analyze, how many types
threads?
7)about
heap dump?
8)about
"Wily introscope " real time tool?
9)
about shell scripting ?
10)
top command?
11)about
MQ, how many types of queues, trobleshooting of mq?
12)jms
server, subdeployement, connection factory, trobleshooting of jms issues?
13)work
manager, request classess, thread constrains, diff between thread constrains
and Execute queue?
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Mindtree Interview questions
================================
Differences
b/w different versions of weblogic server
Explain
about your current environment
Difference
b/w webserver and application server
Difference
b/w developmode and production mode
jdk
version for weblogic 11g
how
to recover administrator password if boot.properties got currupted
stubs
in cluster
http
session replication
t3
protocal
msi
mode in weblogic
apache
installation
how
to enable modules
virtual
hosting in apache
what
is the difference b/w jndi and jdbc
how
to do connection pool shrink
what
is the differenc b/w server crash and hang
how
many log levels available
what
is the difference b/w execute Queues and work managers
how
to find out the memory leaks in the application
how
to take thread dump and heap dump and explain the jmap command
how
to find ip address?
how
to find port numbers?
find
command
top
command
touch
command
how
to trouble shoot wlst python script issues
how
to set deployment order
how
dns resolve the client request
vmstat
swap
iostat
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TCS Interview questions
================================
1)what
is persistent store?
2)difference
b/w weblogic 8 & 10?
3)difference
b/w Queue and Topic?
4)what
is permSize?
5)how
to increase the heap size?
6)what
is subdeployement ? use of subdeployement?
7)how
to deploy an application using wlst script?
8)type
of deployement mode?
9)how
to clear the weblogic cache?
10)how
to check the memory & CPU usage?
11)how
to check the disk usage?
******************************
CSC Interview questions
================================
1)
What is weblogic domain?
2)
What are the basic requirements for cluster?
3)
What are the benifits/advantages of clustering?
3)
How does cluster work?
4)
Explain cluster algorithms
5)
What is the session replication? How does it work when the failover situation?
6)
What is primary and secondary replication groups?
7)
What is persistance store? How many types of persistance mechanisms are there?
8)
HOw can we achive load balancing for cluster?
9)
What is the diff b/w data source and multidata source?
10)
What are the diff types of multidata source algorithms available? and explain?
11)
HOw does apache know whether the weblogic server is failed state in cluster?
12)
HOw to handle stuck thread issues in weblogic?
13)
HOw to handle memory issue in weblogic?
14)
Explain the steps for creating jms setup?
15)
Why dont we target jms server to cluster? and why we target data source to
cluster?
16)
what is subdeployment in weblogic?
17)
What is the diff b/w queue and topic?
18)
what is the diff b/w queue and distributed queue?
19)
How to configure external security LDAP?
20)
HOw to configure siteminder ? What is SSO (single sign on )?
******************************
TechMahendra Interview
questions
================================
1.roles
and responsibilities
2.how
to ceate domain
3.jms
configurations
4.what
is connection factory
5.what
is jms module
6.jvm
out of memory issues
7.what
is garbage collector
8.how
to configure datasorce
9.
work manager
10.wlst
11.ticketing
tool
12.msi
mode
******************************
HCL Interview questions
================================
First
Round ( Technical )
1)
How do you create weblogic domain
2)
What is the purpose of node manager
3)
How do you create cluster? Pre-requisites for cluster creation?
4)
What is the process for connecting to the data base from the application?
5)
What is JNDI?
6)
How to test the connection pool from console?
7)
What should be running from the DB side to connect to the data base?
8)
What is the differences b/w unicast and multi cast?
9)
Do you have exp in performance tunning? How do you handle stuck thread issues?
10)
What are the different thread states?
11)
Explain how to handle memory issue? What are the types of memory leaks?
12)
How do you check all the running java processes in unix?
13)
How do you check updated log file?
14)
What is ulimit command in unix?
15)
Steps for creating data source and connection pool from the console?
16)
How to trouble shoot the deployment
issues?
17)
Application deployed it in weblogic and weblogic is down, The requesting is
comming from apache and apache is running.
Will you be able to access the static
content when weblogic is down?
13.deployment
modes? stagemode, nostage, external stage
14.top
command - complete analysis of top
15.df
- kh
16.find
( how to find the files which are older then 5 days) use -mtime. search for the
syntax in google
17.weblogic
life cycle
18.log
levels
19.weblogic
domain structure
20.config
file location
21.node
manager - how to add the new domain into node manger by editing property files
22.solaris
- commands
23.parameters
of jvm
24.diff
between java heap and perm? and JVM arguments
26.garbage
collection algorithms
27.scenarios
28.
How to handle stuck thread issues?
******************************
NESS Technologies Interview questions
================================
1)
Introduce your-self with current Environment and Work Experience?
2)can
you tel me recently faced issues?
3)MQ
What is transmission queue?
Remote Queue?
4)
currently which version of weblogic using and what are the features ?
5)
what is thread dump and how to analyze, you find blocked threads what can u do?
6)application
running in weblogic suddenly it will slow what are the possible reasons?
7)what
is heap dump, how can you take, and its syntax?
8)what
is garbage collection?
9)
what is hacking threads in weblogic?
10)how
to install apache?
11)what
is virtual hosting?
12)
what is "keep alive" in ( apache)?
13)what
is harizontal clustering, how it works?
14)ssl
how will provide security for our application? how to genarate keys tel me
everthing process ?
15)how
to create datasource?
16)what
is "multidatasource"?
17)
database connection leak issues, in weblogic? if every thing is fine database
side fine, network is fine what is the reason?
18)diff
between XA-driver and Non-xA driver?
19)How
to release connection from connectionpool?
20)If
Jms issues occured, how to troble?
21)find
command
22)Tcp,
netstat -anp(what is "a"), ps
-ef, awk, cut, what is diff between awk and cut?
23)vi
editor
how to open 10 files at a
time in vi editor
24)
what is "nodemanager", nodemanager process, port numbrt of node
manager?
25)telnet
26)pack,
unpack?
27)scp
28)how
to create softlink, hard link files in linux?
29)what
is the process connecting to the database, if weblogic is not connecting to the
database what could be the reason?
30)native
momory issues?
******************************
WIPRO Technologies Interview questions
================================
DIFF
B/w Jdk 1.5 and 1.6 ?
DIFF
B/w apache 2.0 and 2.2 ?
DIFF
B/w wls 8 and wls 9 ?
wls
installation in gui mode ?
Data
source and conection properties ?
how
to create Data source ?
patch
installation ?
deployment
modes ? diff b/w stage and no stage mode ?
cpu
utilizaton ?
war
, ear , jar files ?
what
deployment descriptor ?
what
is thread?
Log
levels ?
Domain
creation ?
Deployments
?
******************************
Wels Fergo Telephonic Interview
Questions
================================
1.Tell
me about yourself and roles and responsibilities in current Project?
2.How
to install the servers and configure the domains? Do you use any tools or
scripts?
3.Do
you have any experience in writing scripts?
4.If
there is any issue with script while running, then how do you debbug the
script?
5.If
i will give a generic jar to install 32-bit of weblogic server, How do you do
that?
6.Is
JMS server targetting to Cluster?
7.What
is the use of having Subdeployments?
8.How
can MQ get the message from Weblogic Server?
9.Can
you tell the functionality of SSL? How does it work ?
10.What
is a domain wise administration port? Do you have any idea?
11.
What are the webservers you know? What version of apache you are using?
12.What
is the weblogic version you are using?
13.How
to display only files using ls command?
14.How
can you debbug a shell script?
15.How
to print the word hello from a test file?
16.How
to remove empty lines from a file?
17.How
to print the lines using sed command?