Practice Q's - Etherchannel

Question 1

Which three combinations of PAgP allow the formation of a channel? (Choose three.)

1. auto-desirable
2. on-off
3. on-on
4. desirable-desirable
5. on-desirable

Answer 1

Correct Answer: ACD

Question 2

Which four modes of PAgP are valid? (Choose four.)

1. passive
2. off
3. on
4. auto
5. desirable
6. active

Answer 2

Correct Answer: BCDE

Question 3

A question about PAgP mode that is receiving but will not initiate formation of EtherChannel.

1. auto
2. desirable
3. on
4. off

Answer 3

Correct Answer: A

Question 4

Which command must be configured on the physical ports of a Layer 3 EtherChannel?

1. ip address <subnet></subnet>
2. switchport trunk encapsulation dot1q
3. no switchport
4. switchport mode access

Answer 4

Correct Answer: C

Question 5

Which statement about the connection of two switches with several links using LACP link aggregation on IOS is true?

1. By default, when an LACP channel is configured, the LACP channel mode is off.
2. By default, when an LACP channel is configured, the LACP channel mode is on
3. By default, when an LACP channel is configured, the LACP channel mode is active.
4. By default, when an LACP channel is configured, the LACP channel mode is passive.

Answer 5

Correct Answer: D

Question 6

Refer to the exhibit. A single server in company ABC is connected via EtherChannel to a single upstream Layer 2 switch. Which EtherChannel load balancing methods on the switch make optimal use of the redundant links as traffic flows from the router that is the default gateway to the server?

1. destination IP address
2. destination MAC address
3. source MAC address
4. source IP address

Answer 6

Correct Answer: B

Question 7

Refer to the exhibit. A single server in Company 123 is connected via EtherChannel to a single upstream switch. Which EtherChannel load balancing method on the switch makes optimal use of the redundant links as traffic flows from the routers to the server?

1. source MAC address
2. source IP address
3. source and destination MAC address
4. destination MAC address

Answer 7

Correct Answer: A

Question 8

If all devices on an EtherChannel are sending traffic to a single MAC address, which two methods of load balancing on the EtherChannel are preferred? (Choose two.)

1. source-MAC
2. src-dst-MAC
3. destination-IP
4. destination-MAC
5. source-IP

Answer 8

Correct Answer: BE

Question 9

Which two statements about configuring EtherChannel are true? (Choose two.)

1. They can be configured to passively negotiate a channel with a connected peer.
2. They can be configured with the no switchport command to place them in Layer 3 mode.
3. They can be configured to load-balancing traffic based on Layer 7 information.
4. They can be configured to operate with up to 10 links in a single channel.
5. They can be configured to send Layer 2 packets.

Answer 9

Correct Answer: AB

Question 10

In which EtherChannel mode does a port receive and respond to PAgP message without initiating EtherChannel communication?

1. desirable
2. active
3. on
4. auto

Answer 10

Correct Answer: D

Question 11

Which type of load balancing is most appropriate for an EtherChannel that passes traffic from multiple sources to a single end device?

1. destination MAC address forwarding
2. source MAC address forwarding
3. source and destination IP address forwarding
4. destination IP address forwarding

Answer 11

Correct Answer: A