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Saturday, September 3, 2016

Most Frequently Asked citrix Interview Questions.

Most Frequently Asked citrix Interview Questions. Latest citrix Interview Questions With Answers. Top 20 citrix Interview Questions For Freshers And Experienced.

1) Explain what is Citrix?

It is an application deployment system. With Citrix, one can access the customized application and can also delivered to remote systems. It also allows file transfer from home computer to office computer and e-mail accessing.

2) List out the Major Citrix components?

Major Citrix components are

    XenApp: It allows to host applications on central servers and enables users to interact with them remotely and deliver it to the user’s devices for local executions
    XenDesktop: It is the practice of hosting a desktop operating system with a virtual machine running on a remote server
    XenServer: It enables you to combine multiple Xen-enabled servers into a powerful resource pool using industry standard shared storage architecture and leveraging resource clustering technology created by XenSource
    Provisioning Server: It reduces the number of systems that they manage, even as the computers number continues to grow.
    Netscaler: It is used to provide level 4 load balancing

3) List out the services provided by Citrix?

Service provided by Citrix includes

    Citrix virtual memory optimization service
    Encryption service
    Citrix XTE service
    Independent Management architecture
    Citrix SMA service
    COM (Common Object Model) services

4) Explain what is Data Store?

Data store is a database which consists of all the configuration information needed by the Citrix farm.  Changes can be made at any time to the Meta Frame Server. The changes are persisted in the data store.  It will data store following information like

    Server configuration
    User configuration
    Print Environment
    Published Application

5) List out the ports associated with Citrix services?

    Default port is A: 1494
    Default listening port for Citrix XML service: 80
    For ICA: 1494
    UDP port used for client broadcasting: 1604
    IMA port: 2512 and 2513
    CMC and SSL port: 443
    Server to SQL port: 1433
    Session Reliability: 2598
    Port Number for licensing: 27000

6) Mention what is the query command in Citrix?

Query command in Citrix includes

    qfarm
    querydc
    queryds
    queryhr

7) Mention what is web interface or Nfuse?

Citrix web interface software provides web access to Java, Unix and Windows applications which are hosted via Citrix application server software. Citrix offers server side control of hosted applications, while Citrix web interface makes applications accessible through a web browser interface.

8) Explain what is Citrix XML broker?

Citrix XML broker behaves as an intermediary between the web interface and farm.  It receives the credentials of the user from the web interface. It retrieves the applications that have user permission to access.  It is done by independent management architecture and returns to the web interface. XML broker detects the server in the farm, once the user is authenticated.  It returns the address of the service rendering server to the web interface.  It functions between IMA service and web interface.

9) Explain what is the step to clear XenServer cache?

To clear XenServer cache you have to use command Dnscmd Server Name/clearcache.

10) Mention what are the default tests available in Health Monitoring & Recovery Tool?

The tests in XenApp Health Monitoring and Recovery Tool are

    Citrix IMA service test
    Logon Monitor test
    Terminal Service test
    XML Service Test

11) Explain what is LHC in Citrix?

The IMA service executing on each Presentation Server downloads the information it requires from the central data store into a local MDB database known as  the Local Host Cache or LHC.

12) List out the load evaluators that are supported in Citrix?

Load evaluators that are supported in Citrix includes

    Memory Utilization
    CPU Utilization
    IP Range
    Page Swap
    Page Fault
    Context Switches
    Disk Data I/O
    Scheduling
    Server Application Load
    User Application Load

13) Mention what is the limit of refresh time for Local Host Cache in Citrix?

The refresh time set for Local Host Cache is 30 minutes, it can be created when IMA is stopped.

14) Explain how you can view the LHC information?

The LHC information is found in the file imalhc.mdb, and this file is available in c:program filescitrixindependent management architecturedirectory.

15) Explain what is Citrix Reciever?

Citrix receiver is a collection of suite of products that enables client devices to connect to various desktop virtualization services offered by Citrix.  Citrix receiver can link with client devices to XenDesktop applications, XenApp and desktops via the HDX protocol.

16) Explain what is Citrix Access Gateway?

CAG or Citrix Access Gateway is a universal secured socket layer virtual private network appliances. It got features like IPSec and SSL VPN.  It also enables instant access to the users and secure access to the company.  Any information resource can be retrieved by using CAG with secure, single point access, always on features.  It supports various types of applications including IP telephony.  Any application which is hosted on Citrix Presentation Server can be used in a secured manner.

17) Explain how you can remove dead server from the Citrix Management Console?

To remove dead server from the Citrix Management Console you have to run

    DSVERIFY SERVERS/CLEAN/FORCE for optimizing the Data Store
    DSVerify can be executed on any of the servers in the farm
    MetaFrame feature release 3 has a command line tool known as DSCHECK
    Use the following command DSVerify command line tool DSCHECK/CHECK
    or right click on the ‘server in the farm’ and select option ‘remove from the Farm’

18) Explain what is the purpose of Zones?

Data collector stores information about Zones, User’s Session and Published Application.

    A Farm consists of a subset referred as Zones
    It consists of various server members
    One of the server members is referred as Zone Data Collector
    In traffic controlling, Zones are useful
    Using ZDCs communication is established among zones

19) Explain the use of shadowing in Citrix?

In Citrix, shadowing resembles for one user to join remotely to another user.  One user can use the session of another user remotely.

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