Question

In an IPv6 header, the traffic class field is similar to which field in the IPv4 header?

(a) Fragmentation field

(b) Fast switching

(c) TOS field

(d) Option field

Answer 1

Right answer is (c) TOS field

Best explanation: The traffic class field is used to specify the priority of the IP packet which is a similar functionality to the Type of Service field in the IPv4 header. It’s an 8-bit field and its values are not defined in the RFC 2460.