Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 433

What are the QoS requirements for voice and video calls over a Cisco MPLS VPN?

Answer options

• A. less than or equal to 150 ms of one-way latency
• B. less than or equal to 10 percent packet loss
• C. less than or equal to 60 ms jitter
• D. less than or equal to 300 ms of one-way latency

Correct answer: A

Explanation

The correct answer is A, as voice and video calls require a one-way latency of no more than 150 ms to maintain quality. Options B and C, while important for QoS, do not address the specific requirement of latency for these types of calls. Option D exceeds the acceptable latency threshold, making it unsuitable for quality voice and video communication.