1Y0-204 Resource Provisioning and Delivery Practice Question
An administrator is tasked with updating the master image for a Machine Catalog using MCS. Which step must be performed to ensure the updated image is available for existing machines?
⚠ Common exam trap
Many candidates assume that simply updating the snapshot in the hypervisor is sufficient, forgetting that Citrix Studio must be explicitly instructed to apply that snapshot to the catalog.
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
✓
Run the 'Update Machines' wizard and select the new master image snapshot.
Updating an MCS catalog requires the administrator to select the new master image snapshot within the 'Update Machines' wizard in Citrix Studio. This process triggers a synchronization task where the Provisioning Service updates the identity disks and refreshes the OS disks for the target machines. This workflow is essential for maintaining application consistency and security patching across a large fleet of virtual desktops without manual intervention.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Manually delete the existing machines and create a new catalog from the updated snapshot.
Why it's wrong here
Deleting and recreating catalogs is unnecessary and disruptive. The 'Update Machines' feature is specifically designed to perform image updates in-place, preserving user assignments and catalog metadata while rolling out the new disk image to the existing machines in a controlled or rolling fashion.
- ✓
Run the 'Update Machines' wizard and select the new master image snapshot.
Why this is correct
Selecting the new snapshot in the 'Update Machines' wizard instructs the MCS framework to prepare the new disk and schedule a reboot for the machines. This is the standard, supported procedure for rolling out updates to virtual machine catalogs managed by the Citrix MCS provisioning engine.
- ✗
Re-run the Machine Catalog Setup wizard to overwrite the current configuration.
Why it's wrong here
The Setup wizard is intended for initial creation, not for rolling updates. Using the setup wizard to overwrite an existing catalog can cause inconsistencies in identity management and machine account tracking. The 'Update Machines' workflow provides the necessary logic to handle the transition between image versions properly.
- ✗
Deploy the new master image directly to the hypervisor template folder.
Why it's wrong here
Directly modifying hypervisor templates without involving the Citrix Studio management console results in the MCS database becoming out of sync with the actual virtual machine state. Citrix requires all image changes to be initiated through the controller to ensure proper disk management and identity service updates.
About these practice questions
Courseiva writes every 1Y0-204 question from scratch — 216 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 1Y0-204 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.