JNCIP-SP: Juniper Networks Certified Professional – Service Provider (2023) — Question 17

What is the correct order of packet flow through configurable components in the Junos OS CoS features?

Answer options

• A. Multifield Classifier -> Behavior Aggregate Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Rewrite Marker -> Scheduler/Shaper/RED
• B. Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker
• C. Behavior Aggregate Classifier -> Input Policer -> Multifield Classifier -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker
• D. Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Scheduler/Shaper/RED -> Output Policer -> Rewrite Marker

Correct answer: B

Explanation

Answer B is correct because it accurately represents the sequence of how packets are processed in the Junos OS CoS features, starting with the Behavior Aggregate Classifier. The other options rearrange this sequence incorrectly, disrupting the intended flow of packets through the various components.