Which byte inside the IPv4 header is used for DiffServ markings?
A) ToS
B) CoS
C) Options
D) DSCP
A
Explanation: The ToS byte in the IPv4 header is used for marking a packet with a specific DiffServ marking; there are two different methods of using this space: IP precedence and differentiated services code point (DSCP).
Computer Science & Information Technology
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