In Junos CoS, what is the primary difference between a policer and a shaper?

A policer is applied to ingress traffic only, while a shaper is applied to egress traffic only

A policer is used for traffic classification, while a shaper is used for queue scheduling

A policer drops or marks excess traffic, while a shaper buffers excess traffic

A policer uses a token bucket, while a shaper uses a leaky bucket

What is the primary difference between traffic shaping and policing?

Shaping is used for rate limiting, while policing is used for classification

Shaping buffers excess traffic, while policing drops or marks it

Shaping uses a token bucket, while policing uses a leaky bucket

Shaping is applied on ingress, while policing is applied on egress

How can a policer influence the behavior of a scheduler in a Junos CoS design?

By setting the loss-priority, which affects drop decisions

By buffering traffic to smooth bursts

By modifying the scheduler's transmit rate

By changing the forwarding class of the traffic

In a single-rate two-color policer, what happens to traffic that exceeds the configured burst size?

It is buffered and transmitted later

It is marked as yellow and forwarded

It is reclassified to a lower forwarding class

It is dropped or marked as exceeding, depending on the configured action

Juniper NetworksCertified Professional, Service Provider Routing and Switching (JNCIP-SP)

Domain 4Objective 4

Policers and Schedulers JN0-664 Practice Questions (Page 1)

Part of the Class of Service (CoS) domain, which makes up ~16% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–10 in this domain), expect 1–1 from this objective — we provide 33 practice questions to prepare you well beyond it. (estimate)

33questions here

7free pages

14concepts

Questions 1–5

1foundation · easy
In Junos CoS, what is the primary difference between a policer and a shaper?
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2foundation · easy
What is the primary difference between traffic shaping and policing?
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3foundation · easy
How can a policer influence the behavior of a scheduler in a Junos CoS design?
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4foundation · easy
In a single-rate three-color policer, how is traffic that exceeds the committed burst size (CBS) but is within the excess burst size (EBS) marked?
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5foundation · easy
In a single-rate two-color policer, what happens to traffic that exceeds the configured burst size?
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