2.4 Configure and Verify (Layer 2/Layer 3) EtherChannel (LACP) 200-301 Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A switch has four interfaces that need to be aggregated into a single logical link to another switch. The administrator wants to ensure that if one physical link fails, traffic continues without interruption. Which configuration ensures this redundancy while also increasing bandwidth?

   • AConnect each interface to a different switch and use HSRP.
   • BConfigure all four interfaces with the same speed, duplex, and VLAN, then use channel-group 1 mode active.
   • CCreate four separate VLANs and route between them.
   • DEnable Spanning Tree Protocol on all four interfaces and rely on STP to load-balance.
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2. 22expert · hard

   A network engineer is designing a routed link between a core switch and a router. The link will carry a single subnet and must provide redundancy and increased bandwidth. The engineer has four Gigabit Ethernet interfaces available on both devices. The router supports LACP. Which design should the engineer implement?

   • ACreate a Layer 3 EtherChannel with a port-channel interface, assign an IP address, and configure physical interfaces with channel-group mode active.
   • BCreate a Layer 2 EtherChannel with a trunk port, and configure a VLAN interface with an IP address.
   • CCreate four separate routed interfaces, each with an IP address in the same subnet, and rely on equal-cost routing to load balance.
   • DUse a single Gigabit Ethernet link and rely on the router to provide redundancy through a routing protocol.
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4. 23foundation · easy

   Which command is used to verify the IP address assigned to a Layer 3 EtherChannel interface?

   • Ashow vlan brief
   • Bshow etherchannel summary
   • Cshow interfaces port-channel 1
   • Dshow mac address-table
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5. 24application · easy

   A switch has four interfaces configured as an EtherChannel to another switch. The engineer wants to verify that all four interfaces are successfully bundled and that the port-channel is operational. Which command provides the most direct verification?

   • Ashow interfaces status
   • Bshow etherchannel summary
   • Cshow vlan brief
   • Dshow running-config
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6. 25foundation · easy

   What is the purpose of the 'mode active' option in the 'channel-group' command when configuring EtherChannel?

   • AIt places the interface in a passive listening state and waits for the neighbor to initiate
   • BIt forces the interface to become a member of the port-channel without any negotiation
   • CIt enables LACP and actively initiates negotiation with the neighbor switch
   • DIt enables PAgP and actively initiates negotiation with the neighbor switch
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