How many bits are used to identify the Class of Service (CoS) marking in a frame?

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How many bits are used to identify the Class of Service (CoS) marking in a frame?

Explanation: The 802.1p standard uses the first 3 bits in the Tag Control Information (TCI) field. Known as the Priority (PRI) field, this 3-bit field identifies the Class of Service (CoS) markings. Three bits means that a Layer 2 Ethernet frame can be marked with one of eight levels of priority (values 0–7).

Exam with this question: 9.6.2 Module Quiz - QoS Concepts
Exam with this question: CCNA 4 v6 Chapter 6: Check Your Understanding