Citrix Virtual Apps & Desktops Administration Flashcards

The Site database becomes unavailable, yet users can still launch resources. Which feature makes this possible?

Answer: Local Host Cache

Local Host Cache keeps a LocalDB copy of Site configuration on each Delivery Controller so brokering continues during a Site database outage.

What is the default TCP port the Citrix License Server uses for license checkout requests from a Delivery Controller?

Answer: 27000

The license server manager (lmadmin) listens on TCP 27000 by default, and the Citrix vendor daemon uses 7279.

An administrator wants a VDA to find its Delivery Controllers without manual registry edits and to pick up controller changes automatically. Which registration method does Citrix recommend?

Answer: Auto-update

Auto-update is enabled by default and keeps the VDA's list of controllers current after its first successful registration.

A Delivery Group machine is placed in maintenance mode. What is the effect?

Answer: The machine accepts no new connections, but existing sessions keep running

Maintenance mode blocks new connections and leaves existing sessions running so the machine can be drained for updates.

Which Citrix policy always has the lowest priority and applies to all objects when no filters are set?

Answer: The Unfiltered policy

The built-in Unfiltered policy always has the lowest priority and is overridden by any conflicting filtered policy.

A help desk operator needs to watch and help with a user's live session from Citrix Director. Which feature should they use?

Answer: Shadow

Shadowing in Director uses Windows Remote Assistance so an administrator can view or control a user's active session.

Which ports does a VDA use for ICA traffic with and without Session Reliability enabled?

Answer: 2598 with Session Reliability, 1494 without

ICA uses port 1494, and Session Reliability wraps ICA in CGP on port 2598.