OSPF has five types of packets, which have the same header format. If the Auth Type field in the packet header is 1, which of the following authentication modes is used?

The correct answer is C. Simple text authentication. See the full explanation below for the reasoning.

Question

OSPF has five types of packets, which have the same header format. If the Auth Type field in the packet header is 1, which of the following authentication modes is used?

Options

ANon-authentication
BMD5 authentication
CSimple text authentication
DHash authentication

How the community answered

(48 responses)

A
4% (2)
B
2% (1)
C
83% (40)
D
10% (5)

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