1Y0-204 Site Health Monitoring Practice Question
Exhibit
Event ID 1074: 'The Citrix Desktop Service failed to register with any Delivery Controller'.
Refer to the exhibit. The administrator sees this error on a VDA. What should the administrator verify first in the Citrix configuration?
⚠ Common exam trap
Candidates often attempt to restart Windows services or check firewall rules before verifying the local VDA registry settings that point to the correct Delivery Controllers.
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 Delivery Controller registry setting 'ListOfDDCs'.
When the VDA cannot register, the most critical configuration is the list of Delivery Controllers stored in the registry (or via GPO). If the list is incorrect, or if the VDA cannot reach the listed Controllers, registration will fail. Verifying that the VDA is configured with the correct Controller FQDNs ensures that the VDA knows where to direct its registration request, which is the necessary first step in troubleshooting.
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 Active Directory computer account status.
Why it's wrong here
While an invalid computer account can cause authentication issues, it is not the first thing to check for a registration error. The Citrix Desktop Service requires a functional connection to the Controller, and the Controller address configuration is more likely to be the issue than the domain account itself.
- ✓
The Delivery Controller registry setting 'ListOfDDCs'.
Why this is correct
The 'ListOfDDCs' registry key contains the addresses of the Delivery Controllers the VDA attempts to register with. Verifying that this list is populated with the correct, resolvable FQDNs is the most direct way to ensure the VDA is directed to the correct infrastructure and can successfully initiate registration.
- ✗
The local VDA firewall rules for HTTPS.
Why it's wrong here
While firewall rules are important, they are not the first priority. An incorrect or empty 'ListOfDDCs' is a more common configuration error. Once the addresses are confirmed correct, then the administrator should verify network path and firewall rules to ensure traffic can actually traverse from the VDA to the Controller.
- ✗
The Citrix License Server connection.
Why it's wrong here
The License Server is not involved in the VDA-to-Controller registration handshake. Checking this is a waste of time during a registration troubleshooting scenario. The VDA will register with the Controller regardless of whether the License Server is reachable, making this an irrelevant check for this specific error code.
About these practice questions
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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.