單項選擇題

While troubleshooting a serial line problem, you enable ppp authentication debugging as shown below:

Based on the command output above, what type of 'handshake' was used for PPP authentication?()

A. one-way
B. two-way
C. three-way
D. four-way
E. no handshakes required during authentication
F. None of the above


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3.單項選擇題You are an administrator of a network that uses PPP for CHAP authentication over ever WAN link. What command would you enter to display the CHAP authentication as it occurs in real time?()

A. show ppp authentication
B. debug PAP authentication
C. debug PPP authentication
D. show interface serial0
E. show CHAP authentication

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