CompTIA
N10-005 · Question #795
N10-005 Question #795: Real Exam Question with Answer & Explanation
The correct answer is D: QoS. QoS (Quality of Service) uses packet-level tags such as DSCP markings and 802.1p priority bits to classify and prioritize different types of network traffic.
Question
An administrator can use packet tags to configure which of the following?
Options
- AVLAN
- BNAT
- CPoE
- DQoS
Explanation
QoS (Quality of Service) uses packet-level tags such as DSCP markings and 802.1p priority bits to classify and prioritize different types of network traffic.
Common mistakes.
- A. VLANs use 802.1Q frame tags to segment Layer 2 traffic, but these tags define broadcast domain membership rather than traffic priority or QoS behavior.
- B. NAT (Network Address Translation) translates IP addresses between private and public address spaces and does not use packet tagging to function.
- C. PoE (Power over Ethernet) delivers electrical power over Ethernet cables to devices and is a physical-layer feature unrelated to packet tags or traffic classification.
Concept tested. QoS traffic prioritization using packet tags
Reference. https://learn.microsoft.com/en-us/windows-server/networking/technologies/qos/qos-policy-top
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