Question 6 of 366
A network engineer receives a report about poor quality on an active call between the IP phone of user A over the WAN to the IP phone of user B. Using web access to the phone, the network engineer remotely checks call statistics such as jitter, network delay, and packet loss. Calculated packet loss is 3%, average jitter is 20 ms, network delay is 1 ms, and conceal seconds is 7.

What is the most likely problem with this call?
    Correct Answer: A

    Packet loss greater than 1% is unacceptable for VoIP (Voice over IP) communications, as even small amounts of packet loss can lead to noticeable degradation in call quality. At 3% packet loss, the voice quality will likely be severely impacted, making it the most likely problem with the call.

Question 7 of 366
Which Cisco Unified Communications Manager protocol communicates with collaboration endpoints?
    Correct Answer: C

Question 8 of 366
Which two tools can be used to measure the quality of a VoIP call? (Choose two.)
    Correct Answer: B, E

Question 9 of 366
What is the recommended maximum one-way latency for voice and video networks?
    Correct Answer: B

Question 10 of 366
An engineer must configure QoS for a VoIP network. Which option is the best QoS model for this task?
    Correct Answer: B