A company has a small network，consisting of a single switch and a single router.The switch has beenconfigured with two vlans，and route-on-a-stick is being configured on the router for inter-vlan routing.Atrunk is configured to connect the switch to the ro

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第3题：

A company has a small network,consisting of a single switch and a single router.The switch has been configured with two vlans,androute-on-a-stick is being configured on the router for inter-vlan routing.A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate?（）

• A、one
• B、three
• C、two
• D、zero

第4题：

A switch that is to be added to the production network has been preconfigured （trunks， VLANs， VTP， and STP） and was tested in your lab. After installing the switch into the network， the entire network went down.  What might explain what happened？ （）

• A、The new switch happened to be running Cisco Catalyst operating system， while the other network switches were running Cisco IOS Software.
• B、The configuration revision of the new switch was higher than the configuration revision of the production VTP domain.
• C、The link costs on the new switch are set to a high value， causing all ports on the new switch to go into a forwarding mode and none into blocking mode， thereby causing a spanning-tree loop.
• D、The ports connecting to the two switches have been configured incorrectly. One side has the command switchport mode access and the other switchport mode trunk.

第5题：

A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）

• A、For the two vlans to communicate，a network statement for the trunk interface needs to be added to the  OSPF configuration.
• B、For the two vlans to communicate， a network statement for each subinterface needs to be  added  to the OSPF configuration.
• C、Direct inter-vlan communication does not require OSPF
• D、OSPF cannot be used if router-on-a-stick is configured on the router

第6题：

A network technician is installing a new managed 10/100 Mbps switch on the network. The network has an older printer with a 10Mbps network adapter that will be moved to the new switch. Which of the following settings on the switch will need to be configured to support the printer?（）

• A、MAC filtering
• B、IP address
• C、PoE
• D、Port speed

第7题：

You have just created a new VLAN on your network.  What is one step that you should include in your VLAN-based implementation and verification plan？ （）

• A、Verify that trunked links are configured to allow the VLAN traffic.
• B、Verify that the switch is configured to allow for trunking on the switch ports.
• C、Verify that each switch port has the correct IP address space assigned to it for the new VLAN.
• D、Verify that different native VLANs exist between two switches for security purposes.

第8题：

Switch SW1 has been configured with Private VLANs. With that type of PVLAN port should thedefault gateway be configured？（）

• A、Trunk
• B、Isolated
• C、Primary
• D、Community
• E、Promiscuous
• F、None of the other alternatives apply

第9题：

On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）

• A、a router with subinterfaces configured on the physical interface that is connected to the switch
• B、a router with an IP address on the physical interface connected to the switch
• C、a switch with an access link that is configured between the switches
• D、a switch with a trunk link that is configured between the switches

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第14题：

You have just created a new VLAN on your network for inter-VLAN routing.  What is one step that you should include in your VLAN-based implementation and verification plan？（）

• A、Verify that different native VLANs exist between two switches for security purposes.
• B、Verify that the switch is configured to allow for trunking on the switch ports.
• C、Verify that each switch port has the proper IP address space assigned to it for the new VLAN. 
• D、Verify that the VLAN virtual interface has been correctly created and enabled.

第15题：

Hosts on the same VLAN can communicate with each other but are unable to communicate with hosts on different VLANs. What is needed to allow communication between VLANs（）。

• A、a switch with a trunk link that is configured between the switches
• B、a router with an IP address on the physical interface that is connected to the switch
• C、a switch with an access link that is configured between the switches
• D、a router with subinterfaces configured on the physical interface that is connected to the switch

第16题：

A VTP domain has six active VLANs. Without notice， all VLANs except VLAN1 fail. Just prior tothe failure， Switch2 was added to the network. Which three issues on Switch2 could be the cause？（）

• A、Switch2 is configured for only VLAN1
• B、Switch2 is a VTP server in a different domain
• C、Switch2 is a VTP server in the Company domain
• D、Switch2 is not a VTP domain.
• E、Switch2 has a lower VTP configuration revision number than the current VTP revision
• F、Switch2 has a higher VTP configuration revision number than the current VTP revision

第17题：

You have just created a new VLAN on your network.  What is one step that  you should include in your VLAN based implementation and verification plan？ （）

• A、Verify that different native VLANs exist between two switches for security purposes.
• B、Verify that the VLAN was added on all switches with the use of the show vlan command. 
• C、Verify that the switch is configured to allow for trunking on the switch ports.
• D、Verify that each switch port has the correct IP address space assigned to it for the new VLAN.

第18题：

What are two characteristics of a switch that is configured as a VTP client？（）

• A、if a switch that is configured to operate in client mode cannot access a VTP server，then the switch reverts to transparent mode.
• B、The local vlan configuration is updated only when an update that has a higher configuration revision number is received.
• C、Vtp advertisements are not forwarded to neighboring switches that are configured in vtp transparent mode.
• D、When switches in vtp client mode are rebooted，they send a vtp advertisement request to the vtp servers.
• E、Vtp client is the default vtp mode
• F、On switches that are configured to operate in client mode ，vlans can be created，deleted，or renamed locally

第19题：

The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch.What must be done to ensure that this new switch becomes the root bridge on the network?（）

• A、One router is running RIPv1.
• B、RIP neighbor is 224.0.0.9.
• C、The network contains a loop.
• D、Network 10.10.1.0 is reachable.

第20题：

You need to design the VLAN scheme for the Company network. Which two statements are true  about best practices in VLAN design？（）

• A、Routing should occur at the access layer ifvoice VLANs are utilized. Otherwise， routing should occur at the distribution layer.
• B、Routing should always be performed at the distribution layer.
• C、VLANs should be localized to a switch.
• D、VLANs should be localized to a single switch unlessvoice VLANs are being utilized.
• E、Routing should not be performed between VLANs located on separate switches.

第21题：

A company has a small network,consisting of a single switch and a single router.The switch has been configured with two vlans,and route-on-a-stick is being configured on the router for inter-vlan routing.A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate?（）

• A、one
• B、three
• C、two
• D、zero

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