Classification and Packet Loss Priority JN0-650 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   What is the purpose of packet loss priority (PLP) in Junos CoS?

   • ATo rewrite the DSCP value on egress
   • BTo assign packets to different queues
   • CTo shape traffic to a specific bandwidth
   • DTo determine which packets are dropped first during congestion
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2. 12foundation · easy

   In Junos CoS, how is PLP used in a scheduler's drop profile?

   • AThe drop profile assigns packets to different queues based on PLP
   • BThe drop profile rewrites the PLP value on egress
   • CThe drop profile sets the PLP value for packets in the queue
   • DThe drop profile defines different discard probabilities for low and high PLP packets
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4. 13foundation · easy

   Which Junos feature is used to implement multifield (MF) classification?

   • AScheduler maps
   • BRewrite rules
   • CFirewall filters
   • DDrop profiles
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5. 14foundation · easy

   In Junos, how is a BA classifier applied to an interface?

   • ABy referencing the classifier in the 'classifiers' configuration under the interface
   • BBy configuring the classifier under the 'forwarding-class' hierarchy
   • CBy setting the classifier in the scheduler map
   • DBy applying a firewall filter that references the classifier
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6. 15expert · hard

   A network engineer is troubleshooting a CoS issue on a Junos router. The router is dropping packets from a critical application during congestion, even though the application's traffic is classified into the assured-forwarding (AF) forwarding class. The engineer has verified that the scheduler for the AF class uses a drop profile that drops high PLP packets more aggressively than low PLP packets. The engineer suspects that the application's traffic is being marked with high PLP. What is the most likely cause?

   • AThe BA classifier maps the application's DSCP value to the AF forwarding class with high PLP.
   • BThe scheduler for the AF class is configured with a drop profile that drops all packets, regardless of PLP.
   • CThe application's traffic is being classified into the wrong forwarding class, such as best-effort (BE).
   • DThe rewrite rule on egress sets the application's DSCP value to a high PLP code point.
   Reveal Solution Discussion Select an answer first