Network administrator has configured the following commands on Router1 and Router2 to enable RIP authentication.

Router1

Router1#conf t

Router1(config)#key chain router1

Router1(config-keychain)#key 5

Router1(config-keychain-key)#key-string same

Router1(config-keychain-key)end

Router2#conf t

Router2(config)#key chain router2

Router2(config-keychain)#key 1

Router2(config-keychain-key)#key-string same

Router2(config-keychain-key)end

Only Plain-text authentication

Both plain-text and MD5 authentication

only MD5 authentication

Authentication is not supported

Verified Answer

Correct Option - a

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