At which stage in the CoS processing pipeline does a Junos device apply a rewrite rule to mark packets for egress?

Before classification, on ingress

After scheduling, before transmission

During classification, before policing

During policing, after scheduling

What is the role of the fixed classifier in Junos CoS?

To rewrite packet headers with new DSCP values on egress

To police traffic based on the forwarding class assigned by a BA classifier

To examine multiple packet fields and assign forwarding classes based on firewall filter rules

To assign a default forwarding class to all packets that do not match any other classifier

How do forwarding classes relate to output queues on a Junos device?

Each forwarding class can be mapped to multiple queues simultaneously

Forwarding classes are mapped to input queues only

Forwarding classes are independent of queues and only affect rewrite rules

Each forwarding class is mapped to a specific output queue

What is the purpose of a rewrite rule in Junos CoS?

To mark packets with the appropriate CoS values on egress

To police traffic to a specified rate

To classify packets based on their header fields

To schedule packets into output queues

Juniper NetworksCertified Professional, Enterprise Routing and Switching (JNCIP-ENT)

Domain 7Objective 1

CoS Processing on Junos Devices JN0-650 Practice Questions (Page 1)

Part of the Class of Service (CoS) domain, which makes up ~10% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–6 in this domain), expect 1–1 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

8concepts

Questions 1–5

1foundation · easy
At which stage in the CoS processing pipeline does a Junos device apply a rewrite rule to mark packets for egress?
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2foundation · easy
Which CoS mechanism uses loss priority to make drop decisions during congestion?
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3foundation · easy
What is the role of the fixed classifier in Junos CoS?
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4foundation · easy
How do forwarding classes relate to output queues on a Junos device?
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5foundation · easy
What is the purpose of a rewrite rule in Junos CoS?
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