210-065 · Question #51
Which four characteristics are associated with video? (Choose four)
The correct answer is C. UDP priority D. delay sensitive E. drop sensitive G. bursty. Video traffic has four key QoS-relevant characteristics: (C) UDP priority - video uses UDP rather than TCP because real-time delivery is more important than guaranteed retransmission; (D) delay sensitive - excessive latency degrades the viewing experience and causes…
Question
Which four characteristics are associated with video? (Choose four)
Options
- Agreedy
- BTCP retransmits
- CUDP priority
- Ddelay sensitive
- Edrop sensitive
- Fbenign
- Gbursty
How the community answered
(46 responses)- A2% (1)
- B2% (1)
- C91% (42)
- F4% (2)
Explanation
Video traffic has four key QoS-relevant characteristics: (C) UDP priority - video uses UDP rather than TCP because real-time delivery is more important than guaranteed retransmission; (D) delay sensitive - excessive latency degrades the viewing experience and causes synchronization issues; (E) drop sensitive - unlike voice (which can tolerate small losses), video relies on frame continuity and reference frames (I-frames), so packet loss causes visible artifacts or freezes; (G) bursty - video bitrates fluctuate significantly based on scene complexity, producing uneven traffic patterns. 'Benign' and 'TCP retransmits' describe data traffic, while 'greedy' is not a standard QoS classification. Understanding these traits is essential for proper QoS marking and queuing policies.
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