JN0-102 · Question #267
Random early detection (RED) is associated with which class of service component?
The correct answer is D. scheduling. Random Early Detection (RED) is a congestion avoidance mechanism primarily used within queuing to manage queue depth and prevent tail drops by proactively dropping packets before the queue becomes full.
Question
Random early detection (RED) is associated with which class of service component?
Options
- Aclassification
- Bpolicing
- Cqueuing
- Dscheduling
How the community answered
(29 responses)- A3% (1)
- B7% (2)
- C3% (1)
- D86% (25)
Why each option
Random Early Detection (RED) is a congestion avoidance mechanism primarily used within queuing to manage queue depth and prevent tail drops by proactively dropping packets before the queue becomes full.
Classification involves identifying and marking traffic, not managing queue depth or congestion avoidance.
Policing limits traffic rates by dropping or remarking packets that exceed a specified rate, but it is not directly responsible for managing queue depth or probabilistic drops like RED.
Concept tested: RED and CoS queuing
Source: https://www.juniper.net/documentation/us/en/software/junos/cos/topics/concept/cos-queuing-overview.html
Topics
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