210-060 Question #236: Real Exam Question with Answer & Explanation

The correct answer is D: 1 percent. This question tests knowledge of Cisco QoS voice traffic requirements, specifically the maximum tolerable packet loss threshold for voice.

Question

What is the maximum amount of packet loss an engineer should allow for voice traffic on an IP network?

Options

A5 percent
B2 percent
C3 percent
D1 percent

Explanation

This question tests knowledge of Cisco QoS voice traffic requirements, specifically the maximum tolerable packet loss threshold for voice.

Common mistakes.

A. 5 percent packet loss far exceeds the tolerable threshold for voice and would cause severe, continuous audio degradation.
B. 2 percent packet loss exceeds the 1 percent maximum and would result in perceptible voice quality issues.
C. 3 percent packet loss is three times the acceptable limit and would make voice calls unreliable and poor quality.

Concept tested. QoS voice traffic packet loss threshold

Reference. https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoS-SRND-Book/VoIPQoS.html

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