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.
Exam with this question: CCNA 4 v6 Chapter 6: Check Your Understanding
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