CLCOR ON Premises Call Control Practice Question
When designing a redundant CUCM deployment, which mechanism ensures that if a primary subscriber fails, phones automatically register to a secondary subscriber?
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
✓
CM Group
The Cisco Unified Communications Manager Group (CM Group) defines the ordered list of CUCM servers that a device will attempt to register with.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
SIP Trunk Security Profile
Why it's wrong here
This profile secures the SIP trunk, it does not handle device registration redundancy.
- ✗
Route List
Why it's wrong here
Route Lists are used for outbound call routing failover, not phone registration.
- ✓
CM Group
Why this is correct
The CM Group determines the registration order and redundancy for devices.
- ✗
Device Pool
Why it's wrong here
The Device Pool references the CM Group, but does not define the failover mechanism itself.
About these practice questions
One of 263 original CLCOR 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 August 2026 · checked against the official Cisco exam blueprint
This CLCOR practice question is part of Courseiva's free Cisco 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 CLCOR exam.