1Y0-312 Advanced Site Architecture Practice Question
A Citrix architect is designing a multi-zone Site with a Primary Zone in New York and a Satellite Zone in London. To minimize latency for the Local Host Cache (LHC) and ensure high availability, which component must be deployed within the London Satellite Zone?
⚠ Common exam trap
Candidates mistakenly believe that deploying StoreFront alone in a satellite zone provides Local Host Cache resilience during a database outage.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Delivery Controller
To ensure that the Satellite Zone remains functional during a loss of connectivity to the Primary Zone database, at least one Delivery Controller must be present in the Satellite Zone. This allows the local Delivery Controller to maintain a local SQL Express database copy, providing LHC functionality. This architecture is vital for maintaining uptime in branch offices where WAN reliability between the data center and the satellite location is not guaranteed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Citrix License Server
Why it's wrong here
The License Server does not need to be local to the Satellite Zone to maintain operations. During a site database outage, the Delivery Controllers use the cached license information, so the central License Server is sufficient for the entire global site as long as connectivity to the License Server is reachable.
- ✗
Virtual Delivery Agents (VDAs)
Why it's wrong here
While VDAs must reside in the Satellite Zone, their presence alone does not enable Local Host Cache. The VDA registers with a local Delivery Controller. If no controller is present in the satellite zone, the VDA cannot establish a connection to the site database or the local cache during an outage.
- ✓
Delivery Controller
Why this is correct
The presence of a Delivery Controller in the Satellite Zone is a mandatory requirement for Local Host Cache functionality. This controller maintains the local SQL Express database instance, which allows the zone to continue brokering sessions and handling VDA registrations even when the connection to the primary SQL site database is severed.
- ✗
StoreFront Server
Why it's wrong here
StoreFront servers can be deployed globally to provide local access points, but they do not facilitate Local Host Cache. StoreFront relies on the Delivery Controllers to enumerate and launch resources. If the Delivery Controller in the satellite zone is absent, the users will be unable to launch sessions regardless of StoreFront availability.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Citrix exam blueprint
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