1Y0-204 Resource Provisioning and Delivery Practice Question
Exhibit
JSON policy: { 'Provisioning': { 'DiskType': 'Thin', 'CacheType': 'RAM', 'RAMSizeMB': 1024, 'DiskSizeGB': 50 } }Refer to the exhibit. An administrator is provisioning a catalog. What is the impact of the 'CacheType: RAM' setting on the target virtual machines?
⚠ Common exam trap
Candidates often assume caching to RAM reduces host resource consumption, whereas it actually optimizes storage I/O performance at the expense of a significant increase in hypervisor host RAM utilization.
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
✓
It significantly increases the I/O performance of the virtual desktop.
Setting the cache type to RAM means all write operations are stored in the virtual machine's volatile memory. This provides extremely high I/O performance, significantly offloading traffic from the backend storage. However, this configuration consumes a significant amount of host RAM per VM. It is highly effective for reducing storage latency, provided that the hypervisor host has sufficient memory capacity to accommodate the cache for all concurrent users in the environment.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
All user data will be saved permanently to the RAM cache across reboots.
Why it's wrong here
RAM is volatile memory; its contents are wiped clean whenever the virtual machine is powered off or rebooted. This setting is strictly for temporary session data during a single user login. It does not provide persistent storage and is incompatible with requirements for saving user data across sessions.
- ✓
It significantly increases the I/O performance of the virtual desktop.
Why this is correct
By redirecting all write I/O to memory, the system avoids the latency associated with physical disk writes. This results in a much faster and more responsive user experience, particularly for write-heavy applications. It is the preferred method for high-performance non-persistent environments where storage IOPS are a bottleneck.
- ✗
The machines will require less physical host memory during operation.
Why it's wrong here
Configuring a RAM cache explicitly allocates a portion of host memory to the virtual machine for caching purposes. This increases, not decreases, the memory footprint of each virtual machine on the hypervisor host. Administrators must account for this extra memory usage when calculating total host capacity for the environment.
- ✗
It prevents the virtual machine from writing to the master image.
Why it's wrong here
While the RAM cache does prevent writes to the master image, that is a feature of the MCS/PVS architecture as a whole, not specifically the RAM cache setting. The primary impact of this setting is the redirection of write I/O to memory for performance rather than just protecting the image.
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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 1Y0-204 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 1Y0-204 exam.