Citrix Interview Questions

1) What is the session reliability service in Windows services?A) Citrix XTE Server is the Windows service for session reliability

2) What is Configuration logging?A) Administrative Configuration Logging is the new feature in XenApp 5.0 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

3) What is "Citrix Startup License" in Citrix presentation server license management console?A) The Startup license does not affect the license count. It is used to allow Citrix products to communicate with the license server using a continuous open connection. Every five minutes the license server and the products send a heartbeat message to each other to verify that they are mutually communicating

4) How to restore the data source to the new server?A) To restore the data store to a different server, or just to move it to a more convenient place on the network, the procedure is as follows:
1. Place the mf20.mdb that was backed up in the proper directory: C:\ProgramFiles\Citrix\Independent Management Architecture;
2. Create a file dsn to the new data store;
3. Run dsmaint config /user:user /pwd:password /dsn:path to dsn on the new data store server and restart IMA

5) What is ICA and what is the advantage of ICA?A) The Independent Computing Architecture (ICA) is the communication protocol by which servers and client devices exchange data in a server environment. ICA is optimized to enhance the delivery and performance of this exchange, even on low-bandwidth connections.
The ICA protocol transports an application’s screens from the server it is running on to the user’s client device, and returns the user’s input to the application on the server. As an application runs on a server, MetaFrame Presentation Server intercepts the application’s display data and uses the ICA protocol to send this data (on standard network protocols) to the client software running on the user’s client device.
When the user types on the keyboard or moves and clicks the mouse, the client software sends this data to the application on the server. ICA requires minimal client workstation capabilities and includes error detection and recovery, encryption, and data compression.
Citrix ICA protocol is used for remote application sessions between users and Presentation servers. The ICA protocol supports TCP/IP, NetBIOS, or IPX/SPX. Citrix ICA protocol is responsible for transmitting background information between the ICA clients and the Presentation servers, including the port mappings, drive mappings, print jobs, and sound. Only Sends Screen Updates & Mouse/Key Board Strokes. Only 30 – 35 kb/sec (Printing and File Transfer increase this) Fat Apps VS Thin Apps
Ports used by ICA:
1494: ICA Protocol on TCP (TCP + HTTP) & 1604: ICA Protocol on UDP

6) What are the different Types of Citrix Load Evaluators?1. CPU Utilization
2. Memory Utilization
3. Page Swap
4. Application User Load
5. Context Switches
6. Disk Data I/O
7. Disk Operations
8. IP Range
9. Page Faults
10. Scheduling
11. Server User Load



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