單項(xiàng)選擇題

Which command encrypts all plaintext passwords?（）

A. Router(config)#password-encryption
B. Router(config)#service password-encryption
C. Router#service password-encryption
D. Router# password-encryption

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單項(xiàng)選擇題

Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?（）

A. IETF
B. HDLC
C. Q9333-A Annex A
D. ANSI Annex D

單項(xiàng)選擇題

What is the default administrative distance of OSPF?（）

A. 120
B. 100
C. 90
D. 110