1Y0-312 Advanced Provisioning and Image Management Practice Question
Exhibit
PVS Server Config: [Store: Store1] [Path: \\FileServer\PVSStore] [Target Device: Device01] [Mode: Standard] [Write Cache: Cache-in-RAM-with-overflow-to-hard-disk]
Refer to the exhibit. An administrator notices that Device01 frequently reports disk latency warnings. Given the write cache configuration shown, what is the most likely cause?
⚠ Common exam trap
Candidates often assume the issue is related to the network or the PVS server load, failing to recognize that the 'Cache-in-RAM-with-overflow' setting is specifically constrained by the RAM allocation size.
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
✓
The RAM cache size is too small, causing excessive disk overflow.
The 'Cache-in-RAM-with-overflow-to-hard-disk' configuration is highly sensitive to memory constraints. When the RAM allocation is exhausted, the PVS driver spills writes to the local hard disk. If the local disk is a slow traditional mechanical drive, it cannot handle the I/O pressure, resulting in high latency. The administrator should either increase the RAM cache size or move the overflow cache to faster storage, such as an SSD.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The PVS Store path is on a slow network share.
Why it's wrong here
The store path is where the vDisk resides. While this affects the read speed, the error specified is related to write cache latency. Write cache is generally stored locally on the target device, so the network share speed has minimal impact on write-cache performance issues occurring on the target device.
- ✓
The RAM cache size is too small, causing excessive disk overflow.
Why this is correct
This configuration uses RAM as the primary write cache, but overflows to the disk when RAM is full. If the RAM allocation is insufficient, excessive I/O is offloaded to the local disk. This transition from RAM-speed I/O to disk-speed I/O creates a bottleneck, causing the reported latency warnings during operation.
- ✗
The vDisk is in Standard mode instead of Private mode.
Why it's wrong here
Standard mode is the standard for non-persistent environments and does not intrinsically cause write-cache latency. While Private mode would allow persistent changes, it does not solve the underlying performance issue with the write-cache location or allocation. The latency is a performance characteristic, not a feature of the image mode.
- ✗
The PVS server lacks sufficient CPU cores to process requests.
Why it's wrong here
PVS server CPU utilization primarily scales with the number of concurrent target devices streaming from the server. Write-cache latency is a local target-device issue; therefore, adding CPU cores to the PVS server will not mitigate the performance degradation caused by local disk I/O bottlenecks on the target machine.
About these practice questions
Courseiva writes every 1Y0-312 question from scratch — 186 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
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
This 1Y0-312 practice question is part of Courseiva's free Citrix certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Y0-312 exam.