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- CCNA Routing and Switching 200-125
31.
You have configured the command channel-group 1 mode active on a range of
interfaces that will participate in an EtherChannel. Which pseudo interface is created
for overall management of the EtherChannel?
- A.ether-channel 1
- B.port-group 1
- C.port-channel 1
- D.channel-group 1
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| When you configure the channel-group 1 mode active command on the first interface, a pseudo interface is created called port-channel 1. All statistics and configuration should be referenced by this interface. |
32.
You have just configured the adjacent side of an EtherChannel from the console
and receive the message in the following exhibit. What is the problem?
- A.One of the switches is configured with on mode and the other with desirable mode.
- B.One of the switches is configured with auto mode and the other with desirable mode.
- C.One of the switches is configured with active mode and the other with active mode.
- D.One of the switches is configured with passive mode and the other with passive mode.
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| When one side is configured with on mode, it uses no control protocol. If a control protocol is sensed from the adjacent switch, the port will enter err-disable mode to protect it from a loop. |
33.
You are configuring an EtherChannel between two switches for trunking. The
EtherChannel will not form. You check your configuration on the first switch. What is
the problem on the other switch? Refer to the following exhibit.
- A.The other switch is configured as an access link.
- B.The other switch has CDP turned off.
- C.The other switch is configured for active mode.
- D.The other switch is configured for passive mode.
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| If the other switch is set to passive mode, an EtherChannel will not form. The recommended mode for the other side is active mode. |
34.
You are configuring an EtherChannel between two switches. You check your
configuration on the first switch and are ready to configure the second switch. What
mode do you need to configure on the other switch? Refer to the following exhibit.
- A.Switch(config-if)# channel-group 1 mode auto
- B.Switch(config-if)# channel-group 1 mode desirable
- C.Switch(config-if)# channel-group 1 mode active
- D.Switch(config-if)# channel-group 1 mode passive
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| Since the auto mode was used on the first switch (Switch A), desirable should be used on the second switch to assure forming of an EtherChannel. |
35.
You check the status of the EtherChannel configured on the switch with the show
etherchannel command. What can be concluded from the output? Refer to the exhibit
below.
- A.The EtherChannel is configured with PAgP.
- B.The EtherChannel is configured with LACP.
- C.The EtherChannel is configured with no control protocol.
- D.The EtherChannel is configured as an access port.
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| The EtherChannel has been configured with no control protocol, which is a result of configuring each side of the EtherChannel with the command channel-group 1 mode on . |
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