AND20

[JamesJones]

• CQ (Custom Queuing):
  ✅ services a specified number of bytes in one queue before continuing to the next queue.
  ❌ The list incorrectly says CQ provides guaranteed bandwidth to a specific class of traffic (that’s CBWFQ).
  
• CBWFQ (Class-Based Weighted Fair Queuing):
  ✅ provides guaranteed bandwidth to a specific class of traffic.
  ❌ The list incorrectly says CBWFQ services a specified number of bytes per queue (that’s CQ).
  

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So the accurate mapping should be:

• PQ: places packets into one of four priority-based queues.
  
• CQ: services a specified number of bytes in one queue before continuing to the next queue.
  
• WFQ: provides minimum guaranteed bandwidth to one or more flows.
  
• CBWFQ: provides guaranteed bandwidth to a specific class of traffic.
  
• FIFO: uses store-and-forwarding queueing.