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CCNA EXAMS: Switching > Chapter 3-3: Link Aggregation > Flashcards

Chapter 3-3: Link Aggregation Flashcards

1
Q

When a range of ports is being configured for EtherChannel, which mode will configure LACP so that it initiates the EtherChannel negotiation?

A

active

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2
Q

This command shows information about the status of the port involved in the Etherchannel.

A

Show interface fa0/2 etherchannel

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3
Q

This command shows information about the reliability of the port-channel.

A

Show interfaces port-channel1

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4
Q

This command is used to check what port channels are configured on a switch.

A

Show entherchannel summary

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5
Q

This command shows the list of ports involved in the port channel and the time since the ports were bundled.

A

Show etherchannel port-channel

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6
Q

What is an advantage of using LACP?

A

allows automatic formation of EtherChannel links

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7
Q

Which command will initiate EtherChannel interface configuration mode?

A

interface port-channel interface-identifier

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8
Q

PT: What are two [2] reasons why the ping messages that are issued from Laptop0 towards Laptop1 are failing?

A

The channel group should be configured as a trunk on each switch.

The two interfaces on each of the switches belong to different VLANs

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9
Q

Which three [3] options must match in order to establish an EtherChannel between two directly connected switches?

A
  1. speed of the interfaces that are used for EtherChannel
  2. VLAN memberships of the interfaces that are used for EtherChannel
  3. duplex settings of the interfaces that are used for EtherChannel
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10
Q

Which switching technology would allow each access layer switch link to be aggregated to provide more bandwidth between each Layer 2 switch and the Layer 3 switch?

A

EtherChannel

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11
Q

Which statement is true regarding the use of PAgP to create EtherChannels

A

It is Cisco proprietary.

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12
Q

Which PAgP mode combination will establish an EtherChannel?

A

switch 1 set to desirable; switch 2 set to desirable.

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13
Q

What is a best practice to use before beginning an EtherChannel implementation?

A

Shut down each of the affected interfaces.

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14
Q

Which two [2] protocols are link aggregation protocols?

A
  1. 802.3ad

2. PAgP

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15
Q

A network administrator has decided that an EtherChannel between ports 0/1 and 0/2 on switches S1 and S2 would help performance. After making the configuration, the administrator notices no performance gain. Based on the output that is shown, what two possible assumptions could a network administrator make? (Choose two.)

A
  1. One of the ports on S2 was not configured correctly.

2. The EtherChannel bundle is not working.

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16
Q

Which statement describes an EtherChannel implementation?

A

A trunked port can be part of an EtherChannel bundle.

17
Q

When a range of ports is being configured for EtherChannel by the use of PAgP, which mode will form the bundled channel only if the port receives PAgP packets from another device?

A

Auto

18
Q

As the network administrator you have been asked to implement EtherChannel on the corporate network. What does this configuration consist of?

A

grouping multiple physical ports to increase bandwidth between two switches

19
Q

The administrator tried to create an EtherChannel between S1 and the other two switches via the commands that are shown, but was unsuccessful. What is the problem?

A

Traffic cannot be sent to two different switches through the same EtherChannel link.

20
Q

An EtherChannel link using LACP was formed between two switches, S1 and S2. While verifying the configuration, which mode combination could be utilized on both switches?

A

S1-passive and S2-active

21
Q

What is the most cost-effective method of solving interface congestion that is caused by a high level of traffic between two switches?

A

aggregate ports by using EtherChannel

22
Q

An EtherChannel was configured between switches S1 and S2, but the interfaces do not form an EtherChannel. What is the problem?

A

The EtherChannel was not configured with the same allowed range of VLANs on each interface.

23
Q

Which two load balancing methods can be implemented with EtherChannel technology?

A
  1. source IP to destination IP

2. source MAC to destination MAC

CCNA EXAMS: Switching (10 decks)

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