1Y0-204 Resource Provisioning and Delivery Practice Question
An administrator is creating a new machine catalog using Machine Creation Services (MCS). The catalog will host pooled, non-persistent Windows 10 desktops for task workers. The administrator wants to minimize storage usage while ensuring each user's session is isolated. Which MCS storage optimization should be selected?
⚠ Common exam trap
The trap here is assuming that full clones provide better isolation and are therefore always preferred, but they consume far more storage and are not optimized for non-persistent pooled desktops.
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
✓
Thin provisioning with a shared base disk and differencing disks per VM
MCS uses a shared base disk and per-VM differencing disks to minimize storage while maintaining isolation. This approach is efficient for non-persistent pooled desktops because only unique changes are stored per VM. Full clones duplicate data, and storage deduplication is external to MCS. UPL addresses personalization, not storage reduction.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Thin provisioning with a shared base disk and differencing disks per VM
Why this is correct
MCS creates a base disk and uses differencing disks to store only the unique changes for each VM. This minimizes storage because the common operating system files are shared, and each VM's writes are isolated in its own differencing disk. This is the default and most storage-efficient method for non-persistent pooled desktops.
- ✗
Persistent user personalization layer (UPL) with a shared base disk
Why it's wrong here
UPL allows users to retain personalization settings and installed applications across sessions, but it does not inherently minimize storage usage. In fact, it can increase storage consumption because user changes are stored separately. This option addresses persistence, not storage optimization, and is therefore incorrect for the stated goal.
- ✗
Storage-level deduplication on the hypervisor datastore
Why it's wrong here
Storage deduplication is a hypervisor or storage array feature, not an MCS storage optimization. While it can reduce storage usage, it is not configured within MCS and may not be available in all environments. The question asks for an MCS-specific optimization, so this is not the correct choice.
- ✗
Full clones for each VM with independent virtual disks
Why it's wrong here
Full clones duplicate the entire base disk for every VM, consuming significant storage. While they provide complete isolation, they are not storage-efficient and are typically used for persistent desktops where users need to install applications and retain changes. The scenario requires minimizing storage, so full clones are inappropriate.
About these practice questions
One of 216 original 1Y0-204 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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 1Y0-204 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.