單項(xiàng)選擇題When troubleshooting a network， the output of the command show interfaces indicates a large number of runts. What is a runt？（）

A.the number of packets that are discarded because they exceed the maximum packet size of the medium
B.errors created when the CRC generated by the originating LAN station or far-end device does not match the checksum calculated from the data received.
C.the number of packets that are discarded because they are smaller than the minimum packet size of the medium
D.the number of received packets that were ignored by the interface because the interface hardware ran low on internal buffers
E.the number of times that the interface requested another interface within the router to slow down


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1.單項(xiàng)選擇題If a certificate authority trustpoint is not configured when enabling HTTPS and the remote HTTPS server requires client authentication， connections to the secure HTTP client will fail. Which command must be enabled for correct operation？（）

A.ip http client secure-ciphersuite 3des-ede-cbc-sha
B.ip https max-connections 10
C.ip http timeout-policy idle 30 life 120 requests 100
D.ip http client secure-trustpoint trustpoint-name

2.單項(xiàng)選擇題If a certificate authority trustpoint is not configured when enabling HTTPS and the remote HTTPS server requires client authentication，connections to the secure HTTP client will fail. Which command must be enabled for correct operation？（）

A.ip http client secure-ciphersuite 3des-ede-cbc-sha
B.ip https max-connections 10
C.ip http timeout-policy idle 30 life 120 requests 100
D.ip http client secure-trustpoint trustpoint-name

3.多項(xiàng)選擇題When using IP SLA FTP operation，which two FTP modes are supported？（）

A.Only the FTP PUT operation type is supported.
B.Active mode is supported.
C.Passive FTP transfer modes are supported.
D.FTP URL specified for the FTP GET operation is not supported.

5.單項(xiàng)選擇題

Refer to the exhibit. Look at the command output. What can you use to prevent this behavior？（）

A.UDLD
B.spanning-tree loopguard
C.VTP mode transparent
D.switchport mode desirable