You are bringing up a new Cisco Catalyst switch, and wish to connect it via a trunk to another switch from a different vendor, which uses the IEEE standard for the trunking method.When setting the encapsulation type on the trunk, what should you configure

第1题：

You are at a client site. It is a medium-sized business and needs a Cisco Catalyst switch that offers high availability and security. What type of Catalyst switches would you recommend？（）

• A、 Catalyst 2960 Series
• B、 Catalyst 3750 Series
• C、 Catalyst 4900 Series
• D、 Catalyst 6500 Series

第2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3题：

You are trying to bring up a new Testking location onto your existing frame relay network. The new location is using an Adtran router and you are having difficulties getting the site to connect via frame to your Cisco HQ router. What is the most likely cause of the problem?（）

• A、Mismatched LMI types.
• B、Incompatible encapsulation types.
• C、Mismatching IP addresses.
• D、Incorrect DLCI.
• E、None of the above

第4题：

A new switch is installed into an existing LAN and a new VTP trunk is set up with an existing switch. Which VLANs will be allowed on this new trunk?（）

• A、All defined VLANs are allowed on the trunk by default.
• B、Each VLAN, or VLAN range, that is specified with the switchport mode command.
• C、Each VLAN, or VLAN range, that is specified with the vtp domain command.
• D、Each VLAN, or VLAN range, that is specified with the vlan database command.

第5题：

You are troubleshooting a Catalyst 5000 trunk in the network. What should you do if there’s adisagreement about the VLANs configured to use the trunk？（）

• A、Reload the active VLAN configuration
• B、Clear the affected port and bring it up again
• C、Explicitly set the trunk for the VLAN to be on
• D、Remove all the VLANs set

第6题：

The following Cisco Catalyst Series switches fit in the access area. Which switches also utilize StackWise technology to address the needs of companies with growing networks by allowing them to connect？（）

• A、 Cisco Express Catalyst 500 Series switches
• B、 Cisco Catalyst 2900 Series switches
• C、 Cisco Catalyst 3560 switches
• D、 Cisco Catalyst 3700 Series switches
• E、 Cisco Catalyst 4500 Series switches
• F、 Cisco Catalyst 6500 Series switches

第7题：

Two Company switches are connected via a trunk using VTP. Which VTP information does a  Catalyst switch advertise on its trunk ports when using VTP？（）

• A、STP root status
• B、VTP mode
• C、Negotiation status
• D、Management domain
• E、Configuration revision number

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第13题：

Which statement correctly describes network security settings in Cisco Network Assistant for the Catalyst Express 500 Switch？（）

• A、The LOW setting enables broadcast storm control， but has no effect on the number of devices that can connect to a switch port
• B、The LOW setting enables broadcast storm control and limits the number of devices that can connect to a switch port.
• C、The LOW setting disables broadcast storm control but limits the number of devices that can connect to a switch port
• D、The default network setting is "HIGH"

第14题：

You have configured a Cisco Catalyst switch to perform Layer 3 routing via an SVI and have  assigned that interface to VLAN 20. To check the status of the SVI， you issue the show interfaces vlan 20 command at the CLI prompt. You see from the output display that the interface is in an "up/up" state.  What must be true in an SVI configuration to bring the VLAN and line protocol up？（）

• A、The port must be physically connected to another Layer 3 device.
• B、At least one port in VLAN 20 must be active.
• C、The Layer 3 routing protocol must be operational and receiving routing updates from neighboring peer devices.
• D、Because this is a virtual interface， the operational status will always be in an "up/up" state.

第15题：

The following Cisco Catalyst Series switches fit in the access area. Which switches also utilize StackWise technology to address the needs of companies with growing networks by allowing them to connect multiple units？（）

• A、 Cisco Express Catalyst 500 Series switches
• B、 Cisco Catalyst 2900 Series switches
• C、 Cisco Catalyst 3560 switches
• D、 Cisco Catalyst 3700 Series switches
• E、 Cisco Catalyst 4500 Series switches
• F、 Cisco Catalyst 6500 Series switches

第16题：

You are configuring an 802.1Q trunk between a Layer 2 switch and a firewall. You read in the documentation that the best way to set up a trunk is to set the port as dynamic desirable. The trunk is not coming up. Which one of these options would be a valid explanation？ （）

• A、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode ON
• B、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode to OFF
• C、The firewall does not support Cisco Discovery Protocol. You should set the switchport trunk mode asauto.
• D、The firewall does not support DTP. You should set the switchport trunk mode to ON

第17题：

You are bringing up a new Cisco Catalyst switch, and wish to connect it via a trunk to another switch from a different vendor, which uses the IEEE standard for the trunking method. When setting the encapsulation type on the trunk, what should you configure on the Cisco switch?（）

• A、Switch(config)# switchport trunk encapsulation isl
• B、Switch(config)# switchport trunk encapsulation ietf
• C、Switch(config-if)# switchport trunk encapsulation isl
• D、Switch(config-if)# switchport trunk encapsulation ietf
• E、Switch(config-if)# switchport trunk encapsulation dot1q

第18题：

When configuring port security on a Cisco Catalyst switch port， what is the default action taken by the switch if a violation occurs？ （）

• A、protect （drop packets with unknown source addresses）
• B、restrict （increment SecurityViolation counter）
• C、shut down （access or trunk port）
• D、transition （the access port to a trunking port）

第19题：

A new switch is being installed and you have been assigned the task of connecting it to an existing switch. In doing this, you want to set up the VLAN Trunking Protocol so that VLAN information can be passed between the switches. Which of the following must you do to accomplish this?（）

• A、You must set each end of the trunk line to IEEE 802.1e encapsulation.
• B、You must set the same VTP management domain name on both switches.
• C、You must set all ports on the two switches as access ports.
• D、You must configure one of the switches as a VTP server.
• E、You must use a rollover cable to connect the two switches.

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