Saturday, February 20, 2010

8. Explain Silent Mode of installation in websphere 6.1?
Ans. We have to check or change the options which are given bellow… (for instance given example will work on Linux).
1. silentInstallLicenseAcceptance="true"
2. installType="installNew"
3. feature="samplesSelected"
4. installLocation="/opt/IBM/WebSphere/AppServer"
5. profileType="cell"
6.PROF_enableAdminSecurity="true"
7. PROF_adminUserName="admin"
8. PROF_adminPassword="admin"
9. PROF_samplesPassword="samples"
10. PROF_dmgrProfileName="Dmgr01"
11. PROF_appServerProfileName="AppSrv01"
12. PROF_enableService="true"
13.PROF_serviceUserName="root"
14. PROF_dmgrHost="localhost"
15. PROF_dmgrPort="8879"
16. PROF_dmgrAdminUserName="wasadmin"
17. PROF_dmgrAdminPassword="wasadmin"
18. traceFormat='text'
19. traceLevel='INFO'
  1. If the installation fails, what are the probable reasons? Where do I check?

    a. Confirm the installation failed by finding “INSTCONFFAILED” and EXITCODE=1 messages in /logs/install/install.log file.
    b. If you were enable trace you can find same messages and more info from /logs/install/trace.txt.
    c. Check the command prompt from which the installation panel was launched for error messages.
    d. Look up any error or warning messages in the message reference table by selecting the ″Reference″ view in the information center navigation and expanding the ″Messages″ heading.
    e. Check the profiles logs to find out error messages and proceed according to them
    f. Missing prerequisites
    g. Incorrect response file configuration during a silent install
    h. Errors due to limitations in non-root installations

Q17) What are the differences between Base(Express) and ND(XD)?

Q17) What are the differences between Base,Express and ND(or XD)?
Ans. Base edition and Express editions are almost similar except packaging structure. XD has advanced capabilities to ND to serve and dealing the complexity of huge applications. The differences between Base and ND edition are below
  • Performance wise no difference between Base and Network deployment


Base edition:
1) For small scale applications
2) Cell configuration, Dmgr and Node agent not available
3) It is not supporting the horizontal clustering though we can’t avoid single point of failure.

Net Work Deployment:

  1. More complex and used for large applications
  2. Cell configuartion,Deployement manager and Node agent available
  3. support vertical and Horizonal clustering that means workload management available

Websphere Topics and aproach

WAS ND 6.1 overview
 Introduction and features in V6.1
 Relate WAS to the other IBM products
 About Editions & Versions
Architecture
 Topology of WAS Base & ND
 Base edition Architecture
Linux & Virtual box
 Overview
 Virtual Box installation
 Configure Linux in Virtual Box
 Linux commands
Installation
 Installation overview
 Base edition Installation
 ND Installation
 Silent installation for ND edition
 How Verify the installation
 Probable problems During the Installation
Profile Management
 Different tools to work with a profile
 profile Directory structure
 Backing up a profile
 Restoring a profile
 How to delete a Profile
 Node federation
 profile types
System Management
 Cell, Dmgr, Node, Node Agent, Profile, Server terminology
 Start and Stop the Environment
 Admin console overview
 Synchronization process
Application Deployment
 Types of deployments
 Deploy the sample Application
 Configuration and settings of an application
 Configurations and settings of server
Configuration with External Systems
 JDBC Configuration
o Data providers
o Data sources
o J2c Authentication
 Installing and work with DB2 Database
 Deploy the JDBC Application
 WebSphere MQ Configuration
o Create the Queue and Queue manager
o Configure the Queue and Queue manager
o Install the Application to access the Queue
o Understand the application flow of execution
IBM HTTP Server & Plug-in
 IHS v6.1 overview
 Installation & verification
 Configuration & Log files
 Install plug-in
 Create web server definition
o From the directory (manual)
o From admin console
 Generate & propagate the plug-in through admin console
WSAdmin & Scripting
 Essential of WSAdmin?
 Introduction to MBeans
 WSAdmin Commands
 introduction to Jacl and Jython
Security
 overview
 Managing Users & Groups
 Enabling the Security
 Configure SSL between IHS & WAS
 creation & managing certificates
Workload Management
 Clustering (vertical & Horizontal)
 Virtual Host
 Data Replication Service (DRS)
 Planning & Architecture to achieve HA
 Edge Components
Performance Monitoring & Tuning
 Enable Application Server Performance monitoring
 Dynamic Cache
 Tivoli Performance Viewer (TPV)
 Request Metrics
Problem Determination & troubleshooting
 Logs and trace
 Heap dump & Thread dump
 Hung Thread detection
 Memory leaks diagnostics
 How to send error to IBM
Product updates
 Installing the fix pack
 WAS Best Practices
Interview & Certification stuff
 Sample resumes
 WAS Interview Questions
 Certification Dumps
 Redbooks and other Resources

Friday, February 19, 2010

Websphere interview Questions 3?

Q16) Websphere interview Questions 3?

41. Is the node Agent will create during the node federation?
42. What will happened when you federate a node to Dmgr explain completely?
43. What is the log file for node federation?
44. How do you synchronize changes node level server – cell configuration (Master configuration)?
45. How do you disable auto synchronization from admin console?
46. What is the difference between Configurator/ monitor/ Operator?
47. What will happen when you run synchNode.sh? What are the precautions to run it?
48. If Dmgr having latest files than server files then what will happen when you run synchNode.sh?
49. How do you start your environment? What is the hierarchy
50. What are log files will update, when you start Dmgr/ node Agent/ server
51. What are log files will update, when you stop Dmgr/ node Agent/ server
52. If you give wrong credentials when you start server / node Agent/ Dmgr, then process will start?
53. If you give wrong credentials when you stop server / node Agent/ Dmgr, then process will stop?
54. How do you check the server status?
55. How do you check the node agent / Dmgr status or all servers at node level?
56. How do you restore the profile?
57. Explain it through both restoreConfig.sh?
58. Tell me the command to restore a profile by using manageprofiles.sh?
59. If restoring profile fails then what to do?
60. What is the log file for restore a profile and where it is?

websphere intervew question 2.

Q15)websphere intervew question 2.

31. How do you take the backup?
32. What is the profile backup policy in your company?
33. List various tools to take the backup?
34. Explain it through BackupConfig.sh?
35. Explain by using manageprofiles.sh? (or) What is the command to take the backup?
36. Could you take the backup without stopping the servers?
37. If so explain how it would be?
38. What is the log file responsible for backup a profile and where it would located?
39. What is the tool available to convert unmanaged node to managed node?
40. What is the syntax for addNode.sh?

Websphere Interview Questions?

1. What are different editions available in WAS?
2. What are the differences between Base/Express and ND/XD?
3. How many Types of Profiles are available?
4. What is the difference between Managed node and an unmanaged node?
5. Explain the procedure to install WAS ND
6. How many Modes are available to install WAS?
7. Explain Silent Mode of installation?
8. What are the Steps involved in GUI mode Installation?
9. If the installation fails, what are the probable reasons? Where do I check
10. If it fails even before create an install.log file then where do I check?
11. If it fails to invoke Installation wizard, then what to do? What are the reasons? Did you face it
12. What is the difference between 5.x and 6.x?
13. What is the difference between 6.0 and 6.1?
14. Explain the scenario WAS environment migration from 5.x to 6.x?
15. What are the different type of updates are available?
16. Did you update WAS in silent mode?
17. What is meant by fix pack?
18. How do you apply a fix pack?
19. What is difference between refresh pack and fix pack?
20. What are the log files will create during applying a fix pack / refresh pack?
21. Did you involved in migration 4.x to 5.x or 6.x?
22. What is the procedure to do it?
23. What are the logs will update?
24. What is the difference between Pre Update and Post Update tools / Logs?
25. How many types profile creation are existed?
26. How you create a profile?
27. Explain the steps involved in profile creation (GUI)?
28. What is the Command to create a profile through terminal/command prompt?
29. Where do I find bootstrap port number of particular node?
30. “About this profile.txt” is meant for what?