A Catalyst switch has just been installed and configured, an

第1题：

第2题：

Which three of these pre-requisite for resetting a Catalyst Express 500 switch when Cisco Network Assistant is unavailable？（）

• A、At Least one enabled switch port that is unconnected to any device
• B、A PC pre-configured with a specific IP Address and Mask
• C、A PC or laptop with Windows 2000 or Windows XP installed and a web browser that has Java Script enabled
• D、Physical Access to Switch
• E、A Switch with no connected devices

第3题：

第4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5题：

A cisco aironet 1020 controller-based access point has been connected to a catalyst 3550-24 pwr switch. however， when it is powered up， the access point fails. What has caused this problem？（）

• A、access point does not support 802.11h
• B、incorrect switch power supply
• C、switch port is not enabled
• D、switch does not support 802.3af
• E、access point has not been initialized with the primary controller

第6题：

A lightweight access point has been connected to a Catalyst 3550 24-PWR switch， and on power-up the access point fails. What is the problem with the switch？（）

• A、The power supply has inadequate wattage.
• B、Power is incorrectly configured on the port.
• C、It does not support 802.3af Poe.
• D、Power is not enabled on the port.

第7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8题：

第9题：

An administrator is configuring a Catalyst switch with VLAN information that must be automatically distributed to other Catalyst switches in the network. What conditions must be met in order for the VLANs configured on this switch to be automatically configured on the other switches?（）

• A、The switch that will share its VLAN configuration must be in VTP server mode.
• B、The switches must be in the same VTP domain.
• C、The switch that will share the VLAN information must be configured as the root bridge.
• D、The switches must be connected over VLAN trunks.
• E、The switches must be configured to use the same STP version.
• F、The switches must have VTP pruning activated.

第10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、Lower the bridge priority number.
• B、Change the MAC address of the switch.
• C、Increase the VTP revision number for the domain.
• D、Lower the root path cost on the switch ports.
• E、Assign the switch an IP address with the lowest value.