CompTIA
N10-005 · Question #905
N10-005 Question #905: Real Exam Question with Answer & Explanation
The correct answer is B: QoS. When deploying VoIP phones on a PoE switch, QoS must be configured to prioritize voice packets and guarantee the low latency and jitter that voice calls require.
Question
A technician is installing a PoE switch for VoIP phones. Which of the following is the technician MOST likely going to configure on the switch?
Options
- ANAT
- BQoS
- CPAT
- DDHCP
Explanation
When deploying VoIP phones on a PoE switch, QoS must be configured to prioritize voice packets and guarantee the low latency and jitter that voice calls require.
Common mistakes.
- A. NAT (Network Address Translation) translates private IP addresses to public ones at a router or firewall and does not affect traffic prioritization on the switch.
- C. PAT (Port Address Translation) is a form of NAT that maps multiple private addresses to a single public IP using port numbers; it has no role in traffic prioritization for VoIP.
- D. DHCP assigns IP addresses to devices automatically; while phones need IP addresses, DHCP configuration alone does not ensure the voice traffic quality required for VoIP calls.
Concept tested. QoS configuration for VoIP traffic prioritization
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