Q6. In QoS environment, which one of the following marking field name is associated with 802.1Q?
A. DSCP
B. CoS
C. TID
D. EXP
E. IPP
Correct Answer: B
Explanation:
DSCP (Differentiated Services Code Point) - It is associated with IPv4 and IPv6 headers.
CoS (Class of Service) - It is associated with 802.1Q and used over VLAN trunk.
TID (Traffic ID) - It is associated with 802.11 and used over Wi-Fi network.
EXP (EXPerimental) - It is associated with MPLS label and used over MPLS WAN.
IPP (IP Precedence) - It is associated with IPv4 and IPv6 headers.
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