1Y0-204 Resource Provisioning and Delivery Practice Question
An administrator manages a Citrix Virtual Apps and Desktops environment with a Delivery Group that contains 100 pooled-random Windows 10 desktops. The administrator needs to deploy a new version of a line-of-business application to all desktops without disrupting users. The application is included in the master image. Which procedure should the administrator follow to update the master image and roll out the change with minimal user impact?
⚠ Common exam trap
The trap here is thinking that a new catalog must be created for image updates or that PVS can be used interchangeably, when MCS provides a built-in update mechanism.
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
✓
Update the master image, then use the Update Machines wizard in Citrix Studio to apply the new image to the catalog, and schedule a restart of all desktops.
For MCS-managed pooled-random catalogs, the correct way to deploy an application included in the master image is to update the master image, use the Update Machines wizard to apply it to the catalog, and then restart the desktops. This ensures all desktops receive the new image with minimal disruption when restarts are scheduled appropriately.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a new Machine Catalog with the updated image and migrate users to the new catalog.
Why it's wrong here
Creating a new catalog and migrating users is disruptive and unnecessary for a simple application update. It would require reconfiguring Delivery Groups and user assignments, causing downtime. The Update Machines wizard is designed to update existing catalogs efficiently without the overhead of creating a new catalog.
- ✗
Manually install the application on each desktop using a remote management tool.
Why it's wrong here
Manually installing on each desktop is inefficient and error-prone, especially for 100 desktops. It also does not align with the MCS model, where changes should be made to the master image and then distributed. Manual installation would create inconsistencies and is not a supported best practice for pooled-random catalogs.
- ✓
Update the master image, then use the Update Machines wizard in Citrix Studio to apply the new image to the catalog, and schedule a restart of all desktops.
Why this is correct
This is the standard MCS update procedure. The administrator updates the master image, then uses the Update Machines wizard to roll out the new image to the catalog. For pooled-random desktops, a restart is required for the new image to take effect. Scheduling restarts minimizes disruption by allowing users to save work and log off before the update is applied.
- ✗
Use Provisioning Services to stream the new application to the desktops without modifying the master image.
Why it's wrong here
Provisioning Services is a different provisioning method and is not used in this MCS environment. Streaming an application via PVS would require a PVS infrastructure and vDisk, which is not present. This approach would introduce complexity and is not the correct way to update an MCS-managed catalog. The scenario specifies MCS, so PVS is not applicable.
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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
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