單項選擇題You are trying to initiate an SSH connection to a remote router and are getting rejected with an error code of 0. Which of these might be the cause of the error?()

A. The routers are using different SSH versions.
B. You are trying to log in using invalid credentials.
C. The RSA key pair is not properly configured on the SSH client.
D. The RSA key pair is not properly configured on the SSH server.


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1.單項選擇題When a Cisco router is configured for SSH, it acts as an ()?

A. SSH client
B. SSH proxy
C. SSH server
D. SSH and SSL server

3.單項選擇題

Refer to the exhibit. Analyze the two traceroutes that are displayed. Which of these statements is correct in describing what most likely caused the traceroute differences?()

A. Do not fragment has been configured on PE11.
B. MPLS has been disabled on routers P11 and P12.
C. An access list has been created on P11 to block traceroutes from PE11.
D. The no mpls ip propgate-ttl local command has been configured on PE11
E. ICMP has been disabled on the intermediary routers between PE11 and PE12.

4.多項選擇題

Referring to the partial Cisco Catalyst switch configuration shown, which two of these statements are correct? ()(Choose two.)

A. A router connected to the fastethemet 1/4 interface will be able to communicate with hosts connected to interface fastethemet 1/1,1/2, and 1/3.
B. A router connected to the fastethemet 1/4 interface will not be able to communicate with the host connected to interface fastethemet 1/3.
C. Hosts connected to interface fastethemet 1/1 and 1/2 can communicate with each other.
D. Hosts connected to interface fastethemet 1/1,1/2, and 1/3 can communicate with each other.

5.多項選擇題

Refer to the exhibit. You have a non-Cisco switch that is not communicating properly while connected to the distribution-layer Cisco switching fabric.
Which two best-practice actions can you take to overcome this problem? ()(Choose two.)

A. Turn off MST (802.1s) on all switches.
B. Turn on MST (802.1s) on all switches.
C. Turn on RSTP (802.1w) on all switches.
D. Turn off RSTP (802.1w) on all switches.

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Refer to the exhibit. You have a non-Cisco switch that is not communicating properly while connected to the distribution-layer Cisco switching fabric.Which two best-practice actions can you take to overcome this problem? ()(Choose two.)

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Refer to the exhibit. Which two of these statements are correct? (Choose two.)()

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