What are the switch and bridge port characteristics of a layer two spanning-tree network that is fully converged?（）A、All switch and bridge ports are in the forwarding state.B、All switch and bridge ports are in the stand-by state.C、All switch and bridge po

题目

What are the switch and bridge port characteristics of a layer two spanning-tree network that is fully converged?（）

A、All switch and bridge ports are in the forwarding state.
B、All switch and bridge ports are in the stand-by state.
C、All switch and bridge ports are assigned as either root or designated ports.
D、All switch and bridge ports are in either the forwarding or blocking state.
E、All switch and bridge are either blocking or looping.

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第1题：

Refer to the exhibit. Based on the information given. Which switch will be elected root bridge and why?()

A.Switch A ,because it has the lowest MAC address

B.Switch C,because it has the lowest priority

C.Switch B,because it has the highest MAC address

D.Switch C,because it is the most centrally located switch

E.Switch A,because it is the most centrally located switch

F.Switch D,because it has the highest priority

参考答案：B

第2题：

Refer to the exhibit. The output that is shown is generated at a switch. Which three of these statements are true? （）

A、All ports will be in a state of discarding, learning, or forwarding.
B、Thirty VLANs have been configured on this switch.
C、The bridge priority is lower than the default value for spanning tree.
D、All interfaces that are shown are on shared media.
E、All designated ports are in a forwarding state.
F、The switch must be the root bridge for all VLANs on this switch.

正确答案:A,C,E

第3题：

The Ezonexam network administrator needs to a switch named VE1 to become the root bridge for a redundant path switched network. What can be done to ensure that VE1 will always assume the role as the root bridge?

A．Assign the switch a higher MAC address than the other switches in the network have

B．Establish a direct link from the switch to all other switches in the network

C．Configure the switch full-duplex operation and configure the other switches for half-duplex operation

D．Configure the switch so that it has lower priority than other switches in the network

E．None of the above

正确答案：D

第4题：

A network administrator needs to force a high-performance switch that is located in the MDF to become the root bridge for a redundant path switched network. What can be done to ensure that this switch assumes the role as root bridge（）。

A、Establish a direct link from the switch to all other switches in the network.
B、Assign the switch a higher MAC address than the other switches in the network have.
C、Configure the switch so that it has a lower priority than other switches in the network.
D、Configure the switch for full-duplex operation and configure the other switches for half-duplex operation.
E、Connect the switch directly to the MDF router, which will force the switch to assume the role of root bridge.

正确答案:C

第5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.

正确答案:A,B,D

第6题：

Refer to the exibit. Three cisco 2950 switches are set to their default priority sttings.During the spanningtree process,which switch will be elected as the root bridge?()

A.Switch3

B.Switch4

C.Switch2

D.Switch1

参考答案：D

第7题：

Refer to the exibit. Three cisco 2950 switches are set to their default priority sttings.During the spanningtree process,which switch will be elected as the root bridge?（）

A、Switch3
B、Switch4
C、Switch2
D、Switch1

正确答案:D

第8题：

Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950, what is the most likely reason that interface FastEthernet 0／10 is not the root port for VLAN 2?()

A.This switch has more than one interface connected to the root network segment in VLAN 2.

B.This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.

C.This switch interface has a higher path cost to the root bridge than another in the topology.

D.This switch has a lower bridge ID for VLAN 2 than the elected designated switch.

参考答案：C

第9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.

正确答案:A

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.

正确答案:A

What are the switch and bridge p

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