A service provider is implementing CoS on a new edge router. The router receives traffic from multiple sources, and the engineer needs to ensure that traffic is classified, policed, scheduled, and shaped in the correct order. Which sequence of CoS processing stages is correct?

Policing, classification, shaping, scheduling.

Shaping, classification, policing, scheduling.

Classification, policing, scheduling, shaping.

Scheduling, shaping, classification, policing.

Which type of classification in Junos CoS uses only the DSCP, EXP, or 802.1p bits in the packet header to assign a forwarding class?

Behavior Aggregate (BA) classification

A network engineer is configuring CoS on a router to protect voice traffic from drops during congestion. The engineer wants to ensure that voice packets are dropped less aggressively than data packets. Which configuration should be used?

Use a policer to limit the rate of voice traffic.

Assign a high loss priority to voice traffic and a low loss priority to data traffic.

Assign a low loss priority to voice traffic and a high loss priority to data traffic.

Assign the same loss priority to voice and data traffic.

Which type of classification in Junos CoS can use source IP address, destination IP address, protocol, and source/destination port to assign a forwarding class?

Behavior Aggregate (BA) classification

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

Domain 4Objective 1

CoS Processing and Header Fields JN0-664 Practice Questions (Page 4)

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 20 practice questions to prepare you well beyond it. (estimate)

20questions here

4free pages

7concepts

Questions 16–20

16application · medium
A service provider is implementing CoS on a new edge router. The router receives traffic from multiple sources, and the engineer needs to ensure that traffic is classified, policed, scheduled, and shaped in the correct order. Which sequence of CoS processing stages is correct?
Select an answer first
17foundation · easy
Which type of classification in Junos CoS uses only the DSCP, EXP, or 802.1p bits in the packet header to assign a forwarding class?
Select an answer first
18foundation · easy
Which CoS header field is carried in the VLAN tag of an Ethernet frame?
Select an answer first
19application · medium
A network engineer is configuring CoS on a router to protect voice traffic from drops during congestion. The engineer wants to ensure that voice packets are dropped less aggressively than data packets. Which configuration should be used?
Select an answer first
20foundation · easy
Which type of classification in Junos CoS can use source IP address, destination IP address, protocol, and source/destination port to assign a forwarding class?
Select an answer first

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