SY0-301 · Question #245
Which of the following should be performed to increase the availability of IP telephony by prioritizing traffic?
The correct answer is C. Quality of service. Quality of Service (QoS) is a set of network technologies that manages and prioritizes specific types of traffic to ensure performance guarantees. VoIP (IP telephony) is extremely sensitive to latency, jitter, and packet loss. QoS marks and prioritizes voice packets over less…
Question
Which of the following should be performed to increase the availability of IP telephony by prioritizing traffic?
Options
- ASubnetting
- BNAT
- CQuality of service
- DNAC
How the community answered
(61 responses)- A3% (2)
- B2% (1)
- C93% (57)
- D2% (1)
Explanation
Quality of Service (QoS) is a set of network technologies that manages and prioritizes specific types of traffic to ensure performance guarantees. VoIP (IP telephony) is extremely sensitive to latency, jitter, and packet loss. QoS marks and prioritizes voice packets over less time-sensitive traffic (like file downloads), ensuring call quality even under congestion. Subnetting (A) divides a network into smaller logical segments for management and routing purposes but does not prioritize traffic. NAT (B) translates IP addresses between private and public networks and has no role in traffic prioritization. NAC (D) - Network Access Control - enforces security policies on devices trying to connect to a network and is unrelated to traffic prioritization.
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