How many levels of priority are possible when using class of service (CoS) marking on frames?

Last Updated: Feb 2, 2023
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How many levels of priority are possible when using class of service (CoS) marking on frames?

  • 3
  • 8
  • 24
  • 64

Explanation: RFC 2474 redefines the ToS field with a new 6-bit Differentiated Services Code Point (DSCP) QoS field. Six bits offers a maximum of 64 possible classes of service.

Related exam: CCNA 4 v6 Chapter 6: Check Your Understanding

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