While I’m finishing up the 1Y0-A08 Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008 practice exam and study guide over the next couple of weeks, I’ll post some information every so often that should prove valuable to any would-be 1Y0-A08 test-takers. Please be sure to do your own research also, just to really get the information firmly fixed in your mind. Today’s subject is: Zone Preference and Failover
While preparing for the 1Y0-A08 Citrix XenApp exam, keep in mind that you create zone preference and failover policies for each zone that needs to have a backup plan configured for it. The zone that the policy is created for should be the Primary Group zone. This will make sure that XenApp routes connection requests from users to this zone first. Specify a backup zone that the users will connect to if they are unable to connect to the XenApp servers in the primary zone.
When a users are frequently travelling to offices in different geographic locations, it is best to have them connect to the zone that they are closest to if there are multiple zones in a farm. In that case, filter the zone preference and failover by IP address so that when the user grabs an IP address from the office that they visiting, they will automatically connect to XenApp servers and use the published applications from that location, thus cutting out any potential WAN low bandwidth and/or high latency problems. In instances where users will not be traveling to other locations, it would be appropriate to filter the zone preference and failover policy by user group.
Remember also that configuring zone preference and failover is important for business continuity in case of an outage at the users primary location. The company won’t have to worry about users sitting around doing nothing because of not being able to connect to their applications. A backup zone will be in place to ensure users are able to connect to the published applications that they need to use.
Just keep the above points about zone preference and failover in mind when taking the 1Y0-A08 exam and you should have no problem choosing the correct answer for two or three questions on this subject.