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单选题
You replaced your Layer 3 switch，which is the default gateway of the end users. Many users cannot access anything now，including email，Internet，and other applications，although other users do not have any issues. All of the applications are hosted in an outsourced data center. In order to fix the problem，which one of these actions should you take？（）
A
Clear the MAC address table in the switch.
B
Clear the ARP cache in the switch.
C
Clear the ARP cache in the end devices.
D
Clear the ARP cache in the application servers.
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更多 “单选题You replaced your Layer 3 switch，which is the default gateway of the end users. Many users cannot access anything now，including email，Internet，and other applications，although other users do not have any issues. All of the applications are hosted in an outsourced data center. In order to fix the problem，which one of these actions should you take？（）A Clear the MAC address table in the switch.B Clear the ARP cache in the switch.C Clear the ARP cache in the end devices.D Clear the ARP cache in the application servers.” 相关考题
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Which of the following is MOST likely a managed, Layer 3 device?()
A.RouterB.BridgeC.HubD.Switch
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You want your Catalyst switch to implement a switching method that holds a packet in its memory until the data portion of the respected packet reaches the switch.Which method should you employ on your Catalyst switch?（）A. Fast ForwardB. Store and forwardC. Frag-freeD. None of the above
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You need to set the default gateway of one of your TestKing switches. Which command will set the default gateway to 192.168.12.1 on a Cisco switch?()
A. Switch(config)# ip default-network 192.168.12.1B. Switch(config)#ip route-default 192.168.12.1C. Switch(config)# ip default-gateway 192.168.12.1D. Swicth(config)# ip route 192.168.12.1 0.0.0.0
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When is a first－hop redundancy protocol needed in the distribution layer?()
A. when HSRP is not supported by the designB. when multiple vendor devices need to be supportedC. when preempt tuning of the default gateway is neededD. when a robust method of backing up the default gateway is neededE. when the design implements Layer 2 between the access switch and the distribution switchF. when the design implements Layer 3 between the access switch and the distribution switch
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Which two practices will avoid Cisco Express Forwarding polarization?()
A. The core layer should use default Layer 3 hash information.B. The core layer should use default Layer 4 hash information.C. The distribution layer should use default Layer 3 hash information.D. The distribution layer should use default Layer 4 hash information.E. The core layer should use Layer 3 and Layer 4 information as input to the Cisco Expressing Forwarding hashing algorithm.F. The distribution layer should use Layer 3 and Layer 4 information as input into the Cisco Expressing Forwarding hashing algorithm.
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Distribution layer: This layer includes LAN－based routers and layer 3 switches . When is a first－hop redundancy protocol needed in the distribution layer?()
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You are the Cisco Network Designer in Cisco.com. In your company site, a NAS is both physically and logically in the traffic path. The NAS identifies clients solely based on their MAC addresses. In which access mode has this NAS been configured to operate?（）A、Layer 2 modeB、Layer 2 Edge modeC、Layer 3 modeD、Layer 3 In-Band mode
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To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus？（）A、 to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 linkB、 to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 linkC、 to two core switches from redundant distribution switches connected with Layer 2 linkD、 to two core switches from redundant distribution switches connected with Layer 3 linkE、 to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
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You need to set the default gateway of one of your TestKing switches. Which command will set the default gateway to 192.168.12.1 on a Cisco switch?（）A、Switch(config)# ip default-network 192.168.12.1B、Switch(config)#ip route-default 192.168.12.1C、Switch(config)# ip default-gateway 192.168.12.1D、Swicth(config)# ip route 192.168.12.1 0.0.0.0
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Assuming that an IP packet is sent from a source address in VLAN1 to a destination address in VLAN2 through a layer-3 switch, which part of the packet will be changed?（）A、Layer 2 TTLB、Layer 3 TTLC、Layer 3 source addressD、Layer 3 destination address
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You want your Catalyst switch to implement a switching method that holds a packet in its memory until the data portion of the respected packet reaches the switch.Which method should you employ on your Catalyst switch?（）A、Fast ForwardB、Store and forwardC、Frag-freeD、None of the above
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You need make configuration changes to an existing layer 3 switch in the Company network. On a multilayer Catalyst switch， which interface command is used to convert a Layer 3 interface to a Layer 2 interface？（）A、 switchport access vlan vlan-idB、 switchportC、 switchport mode accessD、 no switchportE、 None of the other alternatives apply
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Which of the following is MOST likely a managed, Layer 3 device?（）A、RouterB、BridgeC、HubD、Switch
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You replaced your Layer 3 switch， which is the default gateway of the end users. Many users cannot access anything now， including email， Internet， and other applications， although other users do not have any issues. All of the applications are hosted in an outsourced data center. In order to fix the problem， which one of these actions should you take？（）A、Clear the MAC address table in the switch.B、Clear the ARP cache in the switch.C、Clear the ARP cache in the end devices.D、Clear the ARP cache in the application servers.
考题
When is a first-hop redundancy protocol needed in the distribution layer?（）A、when HSRP is not supported by the designB、when multiple vendor devices need to be supportedC、when preempt tuning of the default gateway is neededD、when a robust method of backing up the default gateway is neededE、when the design implements Layer 2 between the access switch and the distribution switchF、when the design implements Layer 3 between the access switch and the distribution switch
考题
You are configuring a new Catalyst switch that you want to manage remotely from workstations on other network segments within your enterprise.Which of the following are required to allow remote management of the switch over IP?（）A、The switch name must match the workgroup name of the local network.B、The switch must be configured with an IP address and default gateway.C、The remote workstations must have access to the management VLAN of the switch.D、CDP must be enabled on the switch so that it can be located by other devices on the network.
考题
单选题Distribution layer: This layer includes LAN-based routers and layer 3 switches . When is a first-hop redundancy protocol needed in the distribution layer?（）A
OSPF is not supported by the designB
HSRP is not supported by the designC
preempt tuning of the default gateway is neededD
the design implements Layer 3 between the access switch and the distribution switch
考题
多选题You are configuring a new Catalyst switch that you want to manage remotely from workstations on other network segments within your enterprise.Which of the following are required to allow remote management of the switch over IP?（）AThe switch name must match the workgroup name of the local network.BThe switch must be configured with an IP address and default gateway.CThe remote workstations must have access to the management VLAN of the switch.DCDP must be enabled on the switch so that it can be located by other devices on the network.
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单选题When configuring a routed port on a Cisco multilayer switch， which of these is a required configuration task that you must perform to enable that port to function as a routed port？ （）A
Enable the switch to participate in routing updates from external devices with the router command in global configuration mode.B
Enter the no switchport command to disable Layer 2 functionality at the interface level.C
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考题
单选题You need to set the default gateway of one of your TestKing switches. Which command will set the default gateway to 192.168.12.1 on a Cisco switch?（）A
Switch(config)# ip default-network 192.168.12.1B
Switch(config)#ip route-default 192.168.12.1C
Switch(config)# ip default-gateway 192.168.12.1D
Swicth(config)# ip route 192.168.12.1 0.0.0.0
考题
单选题When is a first-hop redundancy protocol needed in the distribution layer?（）A
when HSRP is not supported by the designB
when multiple vendor devices need to be supportedC
when preempt tuning of the default gateway is neededD
when a robust method of backing up the default gateway is neededE
when the design implements Layer 2 between the access switch and the distribution switchF
when the design implements Layer 3 between the access switch and the distribution switch
考题
单选题You need make configuration changes to an existing layer 3 switch in the Company network. On a multilayer Catalyst switch， which interface command is used to convert a Layer 3 interface to a Layer 2 interface？（）A
switchport access vlan vlan-idB
switchportC
switchport mode accessD
no switchportE
None of the other alternatives apply
考题
单选题How can you reset your router or switch to factory defaults?（）A
reset configurationB
load factory-defaultC
load override defaultD
set default configuration
考题
单选题Cisco Express Forwarding (CEF) is mainly used to increase packet switching speed, reducing the overhead and delays introduced by other routing techniques, increasing overall performance.Which of the following concerning CEF is recommended by Cisco?（）A
Use default Layer 4 hash in core.B
Use default Layer 3 hash in distribution.C
Use default Layer 4 hash in distribution.D
Use default Layer 3 hash in core and Layer 3 + Layer 4 hash in distribution layer.
考题
单选题Cisco Express Forwarding （CEF） is mainly used to increase packet switching speed， reducing theoverhead and delays introduced by other routing techniques， increasing overall performance.Which of the following concerning CEF is recommended by Cisco？（）A
Use default Layer 4 hash in core.B
Use default Layer 3 hash in distribution.C
Use default Layer 4 hash in distribution.D
Use default Layer 3 hash in core and Layer 3 + Layer 4 hash in distribution layer.
考题
单选题To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus？（）A
to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 linkB
to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 linkC
to two core switches from redundant distribution switches connected with Layer 2 linkD
to two core switches from redundant distribution switches connected with Layer 3 linkE
to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
考题
单选题You replaced your Layer 3 switch， which is the default gateway of the end users. Many users cannot access anything now， including email， Internet， and other applications， although other users do not have any issues. All of the applications are hosted in an outsourced data center. In order to fix the problem， which one of these actions should you take？ （）A
Clear the MAC address table in the switch.B
Clear the ARP cache in the switch.C
Clear the ARP cache in the end devices.D
Clear the ARP cache in the application servers.
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