2.4 Configure and Verify (Layer 2/Layer 3) EtherChannel (LACP) 200-301 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   An engineer is configuring an EtherChannel between two switches. The physical interfaces are set to trunk mode and the port-channel interface is also configured as a trunk. After verification, the EtherChannel is up but only one VLAN is passing traffic. What is the most likely cause?

   • AThe port-channel interface is in access mode.
   • BThe allowed VLAN list on the port-channel interface does not include all required VLANs.
   • CThe native VLAN is different on the two switches.
   • DThe load-balancing method is set to src-mac.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   When configuring a Layer 2 EtherChannel that carries multiple VLANs, what must be configured on the port-channel interface?

   • AThe same trunk mode and allowed VLAN list as the member interfaces
   • BThe 'no switchport' command to make it a routed port
   • CAn IP address and subnet mask for routing between VLANs
   • DA native VLAN different from the member interfaces to avoid conflicts
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A network administrator is configuring EtherChannel between two switches. One switch is a Cisco switch and the other is a third-party switch that supports LACP. The administrator wants to ensure the channel forms even if the third-party switch is configured passively. Which LACP mode should be configured on the Cisco switch?

   • Apassive
   • Bon
   • Cactive
   • Ddesirable
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   An administrator has configured an EtherChannel between two switches. After verifying with show etherchannel summary, the port-channel is up, but traffic is not using all member links equally. The administrator wants to confirm which links are actually carrying traffic. Which command provides the most direct evidence of per-link utilization?

   • Ashow spanning-tree interface port-channel 1
   • Bshow etherchannel port
   • Cshow etherchannel load-balance
   • Dshow interfaces counters
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   Which benefit does EtherChannel provide compared to using multiple independent physical links between two switches?

   • AIt guarantees that all frames are transmitted in order across the bundle
   • BIt eliminates the need for Spanning Tree Protocol (STP) to block redundant links
   • CIt provides a separate IP address for each physical link
   • DIt increases the total bandwidth beyond the sum of the individual link speeds
   Reveal Solution Discussion Select an answer first