CLCOR Infrastructure And Design Practice Question
In a multisite WAN deployment, which codec should you choose to balance voice quality and bandwidth consumption across a constrained link?
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
✓
G.729
G.729 is the standard low-bandwidth codec that provides acceptable voice quality at 8kbps.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
G.711
Why it's wrong here
G.711 uses 64kbps per call, which is inefficient for constrained links.
- ✓
G.729
Why this is correct
G.729 is highly efficient for bandwidth-constrained WAN links.
- ✗
AAC-LD
Why it's wrong here
This is a video/audio codec, not intended for voice-only WAN trunking.
- ✗
G.722
Why it's wrong here
G.722 is a wideband codec that uses significantly more bandwidth.
About these practice questions
This CLCOR question is part of Courseiva's 263-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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 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.