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Exam 300-420 topic 1 question 132 discussion

Actual exam question from Cisco's 300-420
Question #: 132
Topic #: 1
[All 300-420 Questions]

An engineer must design a scalable QoS architecture that allows the separation of the traffic into classes based on predefined business requirements. The design must also utilize the differentiated services code points as the QoS priority descriptor value and support at least 10 levels of classification. Which QoS technology should the engineer include in the design?

  • A. RSVP
  • B. DiffServ
  • C. Best Effort
  • D. InterServ
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Suggested Answer: B 🗳️
by namibdigger at Aug. 1, 2022, 8:52 a.m.

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Lungful
9 months, 3 weeks ago
Selected Answer: B
B is correct. "Differentiated Services (Diffserv) model is also known as a soft QoS model. It’s a model based in service classes and per hop behaviours associated to each class." Reference: https://learningnetwork.cisco.com/s/question/0D53i00000KsqtXCAR/qos-architecture-models-intserv-vs-diffserv
upvoted 1 times
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namibdigger
1 year, 10 months ago
Selected Answer: B
DSCP Values allow for > 10 classes and are used in DiffServ to discriminate traffic
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