What is the final component of CoS processing on a Junos device?

Question

Options

• Adrop profile map
• Bbehavior aggregate classifier
• Crewrite marker
• Dmultifield classifier

• A
  3% (1)
• B
  6% (2)
• C
  78% (28)
• D
  14% (5)

Explanation

The following steps describe the CoS process: 1. A logical interface has one or more classifiers of different types applied to it. 2. The classifier assigns the packet to a forwarding class and a loss priority 3. Each forwarding class is assigned to a queue 4. Input (and output) policers meter traffic and might change the forwarding class and loss priority if a traffic flow exceeds its service level. 5. The physical or logical interface has a scheduler map applied to it 6. The scheduler defines how traffic is treated in the output queue--for example, the transmit rate, buffer size, priority, and drop profile 7. The scheduler map assigns a scheduler to each forwarding class ( 8. The drop-profile defines how aggressively to drop packets that are using a particular scheduler 9. The rewrite rule takes effect as the packet leaves a logical interface that has a rewrite rule The rewrite rule writes information to the packet (for example, EXP or DSCP bits) according to the forwarding class and loss priority of the packet. cos-config-guide.html

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