FREE JNCIA CoS Features Questions and Answers

Question 1

What is the primary purpose of Class of Service (CoS) in Junos OS?

Accepted Answer

To prioritize traffic based on application or user needs

Answer

To enhance network security

Answer

To reduce network latency

Answer

To simplify routing configuration

Question 2

Which component in CoS is responsible for marking packets for priority handling?

Accepted Answer

Classifier

Answer

Scheduler

Answer

Policers

Answer

Forwarder

Question 3

What is the role of a scheduler in Junos OS CoS?

Accepted Answer

Manages bandwidth allocation and queue prioritization

Answer

Drops packets when queues are full

Answer

Assigns packets to forwarding classes

Answer

Reorders packets to maintain sequence

Question 4

Which Junos CoS feature enforces traffic rates by dropping packets when limits are exceeded?

Accepted Answer

Policing

Answer

Shaping

Answer

Scheduling

Answer

Forwarding

Question 5

What command is used to configure CoS classifiers in Junos OS?

Accepted Answer

set class-of-service classifier

Answer

set classifier

Answer

set cos priority

Answer

set traffic classifier