Scenario: A Citrix Engineer maintains a multi-zone XenDesktop infrastructure with two Virtual Delivery Agent (VDA) machines located in the Primary Zone and two VDAs in the Satellite Zone. Each zone contains a single Delivery Controller.
During an unexpected outage, the Delivery Controller in the Primary Zone went offline and did NOT resume.
What will happen to the VDAs in the Primary Zone?
A. The VDAs in the Primary Zone will attempt to register with the Delivery Controller in the Satellite Zone.
B. The VDAs in the Primary Zone will make intermittent attempts to re-register with the Delivery Controller in the Primary Zone.
C. The VDAs in the Primary Zone will remain in a registered state, regardless of the Delivery Controller being offline.
D. The VDAs in the Primary Zone will go to an unregistered state and NOT attempt to re-register until the local Delivery Controller resumes and is online.
|
Download Printable PDF. VALID exam to help you PASS. |
 |
A VDA in a satellite zone registers with a local Controller, if possible. (This is considered the preferred Controller.) If no local Controllers are available (for example, because the local Controllers cannot accept more VDA registrations or the local Controllers have failed), the VDA will attempt to register with a Controller in the primary zone. In this case, the VDA stays registered in the primary zone, even if a Controller in satellite zone becomes available again.
What happes next:
When auto-update is enabled for VDA discovery of Controllers, and you specify a list of Controller addresses during VDA installation, a Controller is randomly selected from that list for initial registration (regardless of which zone the Controller resides in). After the machine with that VDA is restarted, the VDA will start to prefer registering with a Controller in its local zone.
https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/manage-deployment/zones.html
C is Correct Ans
Apologies for my typo: Ans is B
Answer is correct
according to below article, its D.
https://support.citrix.com/article/CTX126992
article states:
“The Citrix Desktop Service failed to register with any controllers in the last 2 minutes.
The service now tries to register with controllers at a reduced rate of every 2 minutes.”
Answer is D
https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/manage-deployment/zones.html
A VDA in the primary zone registers with a Controller in the primary zone. A VDA in the primary zone will never attempt to register with a Controller in a satellite zone.
If all Controllers in the primary zone fail:
Studio cannot connect to the Site.
Connections to VDAs in the primary zone cannot be made.
Site performance will increasingly degrade until the Controllers in the primary zone become available.
same reference
A VDA in the primary zone registers with a Controller in the primary zone. A VDA in the primary zone will never attempt to register with a Controller in a satellite zone.
B
Answer is D.
If all Controllers in the primary zone fail:
Studio cannot connect to the Site.
Connections to VDAs in the primary zone cannot be made.
Site performance will increasingly degrade until the Controllers in the primary zone become available.
Reference:
https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/manage-deployment/zones.html
I’m not sure D: is correct. The link you provided, to me, doesn’t prove D: is correct.
B > source – https://support.citrix.com/article/CTX126992 -> EVENT ID > 1022 “The Citrix Desktop Service failed to register with any controllers in the last 2 minutes.
The service now tries to register with controllers at a reduced rate of every 2 minutes.”
This shows that the VDA will keep attempting to register to Controllers until one is available – answer D says it will not attempt to re-register so that is false.
Michael, note the “until it comes online bit”