10 interview question you are likely to be asked in Citrix XenApp Interview-3

Citrix XenApp Interview Questions 3-

Question 1–How to check version of your license server?

Ans- On a license server without the License Administration Console:

Look at the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\LicenseServer\Install (for 32-bit operating systems)
HKLM\Software\Wow6432Node\Citrix\LicenseServer\Install (for 64-bit operating systems)
<version> 11.6.1 build 10007 is for XenApp Server 6.0
<version> 11.9.0 build 11011 is for XenApp Server 6.5

On a license server with the License Administration Console:-

Start the License Administration Console from the programs menu: Citrix > Management Consoles > License Administration Console.

Click Administration and select the System Information tab. See the release version in the information list.

Question 2–What is Configuration logging?

Ans- Administrative Configuration Logging is a feature in XenApp 5.0 and above and it can be configured in farm-wide properties. We can store all the administrative changes in the farm. We can see the log from the Report Center. We can clear log from the farm properties. We can configure to have credential to clear the log.

Question 3–what will you do when you get this error message “The resource you request is no longer available?

Ans- This error could be due to any of the following reasons-

1.      There is a syntax error in the Web Interface configuration under “Edit Secure Gateway Settings” for the STA address.

2.      The Citrix XML broker service may have an unstable Citrix XML Service at the address specified in the Event Viewer Description field.

3.      The server reaches full load and rejects any new connections.

4.      One or more of the servers that publish applications do not have the alternate address defined.

Question 4–What are the major technical considerations for deciding to create more than one farm?
Ans- The major technical considerations are-

1.      The Geographical Location of the servers

2.      The type of network connection between the servers.

Question 5–Explain step by step  the application enumeration Process?

Ans- The application enumeration process is as follows:

1.      A user launches a Web browser and  then connects to the Web Interface.

2.      The Web Interface returns the logon page.

3.      The user types in credentials.

4.      The user’s credentials are forwarded from XML to the IMA service in HTTP (or HTTPS) form.

5.      The IMA then forwards them to the local Lsass.exe.

6.      The Lsass.exe encrypts the credentials and passes them to the domain controller.

7.      The domain controller returns the SIDs (user’s SID and the list of group SIDs) back to Lsass.exe and to IMA.

8.      IMA uses the SIDs to search the Local Host Cache (LHC) for a list of applications and the Worker Group Preference policy for that authenticated user.

9.      The list of the applications together with the user’s worker group preference policy are returned to the Web Interface.

10.   The Web Interface returns the Web page to the Web browser. (This completes the application enumeration process).

Question 6–How do you move servers to other zones?

Ans- Go to Zones from console..>.Zone(where serevr located)--->  go to "Election Preference tab" ---> right click on the server and select the Set server's zone membership option to move the selected server to another zone, or select the Change server's zone membership option to move the selected server to another zone.

Question 7– How do you remove server from the Farm?
Ans- The Chfarm command is used to remove or move the server and the command is no longer valid in XenApp 6.x. An alternative method to move the XenApp server is-

·        Use XenApp Server Configuration Tool accessed through the Server Role Manager.

·        Select Edit Configuration.

·        Select Remove this server from the current farm.

Question 8– What are the factors you must consider when deciding which type of database to use in a farm?
Ans- The main factors to consider are -

1.      Number of Users

2.      Number of Applications

3.      Number of servers

Question 9– What is a Zone?

Ans- Zone is subset of Farm. It is a grouping of XenApp Servers that shares the common Data Collector. Zones are very helpful in controlling traffics. It collects data from member servers and distributes changes to all servers in the farm.

Question 10–After your network team has installed a new firewall your users are not able to connect to published applications, what will you check first?

Ans- Port 1494 on firewall is open or not.