If the application-layer protocol is Telnet, what is the value of the "Protocol" field in the IPv4 header?

The correct answer is C. 6. The protocol number for TCP in the IPv4 header is 6. Since Telnet uses TCP as its transport layer protocol, the protocol field in the IPv4 header will contain the value 6.

Datacom Network Fundamentals

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(35 responses)

A
9% (3)
B
6% (2)
C
83% (29)
D
3% (1)

Explanation

The protocol number for TCP in the IPv4 header is 6. Since Telnet uses TCP as its transport layer protocol, the protocol field in the IPv4 header will contain the value 6.

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#IPv4 header#protocol field#TCP#Telnet

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