Which of the following are characteristics of 802.1p? (Choose two)

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Which of the following are characteristics of 802.1p? (Choose two)
A . 802.1p adds 16 bits to the Layer 2 header,
B . 802.1p adds 16 bits to the Layer 3 header.
C . 802.1p specifies 64 different priority levels.
D . 802.1p uses a field in the 802.1Q header.
E . 802.1p uses a field in the Layer 3 IP header
F . 802.1p defines a 3-bit Class of Service field.

Answer: D,F