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2. A network technician suspects that a particular network connection between two Cisco switches is having a duplex mismatch. Which command would the technician use to see the Layer 1 and Layer 2 details of a switch port?show interfacesshow running-configshow ip interface briefshow mac-address-table

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Which Cisco IOS XR CLI command displays the running state of each line card (including the fan tray) on the Cisco ASR 9000 Series Router?A. RP/0/RSP0/CPU0:PE1#show platformB. RP/0/RSP0/CPU0:PE1(admin)#show platformC. RP/0/RSP0/CPU0:PE1#show hw-module fpd location allD. RP/0/RSP0/CPU0:PE1(admin)#show hw-module fpd location allE. RP/0/RSP0/CPU0:PE1#show versionF. RP/0/RSP0/CPU0:PE1(admin)#show version

Which three statements correctly describe DSL-based Internet services for residential users? (Choose three.)A. Most residential deployments use PPPoE encapsulation where the end user PC or the DSL CPE will require a PPP username and password configuration.B. Most residential deployments use PPPoA encapsulation where the DSL CPE device needs to provide Layer 3 routing functions.C. The most commonly installed DSL variant for residential deployments is ADSL.D. The most commonly installed DSL variant for residential deployments is SDSL.E. The most commonly installed DSL variant for residential deployments is HDSL.F. At the DSL service provider location, a DSLAM typically is used to terminate all the PPP connections of the DSL subscribers.G. At the DSL service provider location, a DSLAM is used to terminate and then aggregate the DSL connections over an ATM network.

Which two statements about IPv4 DHCP operations are true? (Choose two.)A. If the DHCP clients and servers are on the same subnet, DHCP uses UDP broadcasts to communicate between the clients and servers.B. The DHCP server that receives a DHCPDISCOVER message may respond with a DHCPOFFER message on UDP port 67.C. A client can receive DHCPOFFER from multiple servers and it can accept all the offers by broadcasting the DHCPREQUEST message to all the servers.D. A DHCP relay is required if the DHCP clients and the servers are on the same subnet.E. If the client and server are on different subnets, DHCPDISCOVER and DHCPREQUEST messages are sent via UDP broadcasts, but DHCPOFFER and DHCPACK messages are unicast.F. The client broadcasts a DHCPDISCOVER message on UDP port 68 with its own MAC address to discover available DHCP servers.

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