要确保交换机成为VLAN30的根网桥,可使用下面哪两个命令之一?() A.spanning-tree vlan 30 priority 0B.spanning-tree vlan 30 priority 16384C.spanning-tree vlan 30 root guaranteeD.spanning-tree vlan 30 root primary
要确保交换机成为VLAN30的根网桥,可使用下面哪两个命令之一?()
A.spanning-tree vlan 30 priority 0
B.spanning-tree vlan 30 priority 16384
C.spanning-tree vlan 30 root guarantee
D.spanning-tree vlan 30 root primary
相关考题：
某公司内部有3个部门,其中第一个部门属于VLAN10,第二个部门属于VLAN20,第三个部门属于VLAN30,以下哪个选项是创建vlan20并把它配置在接口上?() A、Switch(config)#vlan20Switch(config)#Interfacevlan20Switch(config-if)#switchportaccessvlan20B、Switch(config)#Interfacegigx/ySwitch(config-if)#vlan20Switch(config-vlan)#switchportaccessvlan20C、Switch(config)#vlan20Switch(config)#Interfacevlan20Switch(config-if)#switchporttrunknativevlan20D、Switch(config)#vlan20Switch(config)#Interfacegigx/ySwitch(config-if)#switchportaccessvlan20
● 交换机命令show interfaces type 0/port_# switchport|trunk用于显示中继连接的配置情况，下面是显示例子：2950# show interface fastEthernet0/1 switchportName: fa0/1Switchport: EnabledAdministrative mode: trunkOperational Mode: trunkAdministrative Trunking Encapsulation: dot1qOperational Trunking Encapsulation: dot1qegotiation of Trunking: DisabledAccess Mode VLAN: 0 ((Inactive))Trunking Native Mode VLAN: 1 (default)Trunking VLANs Enabled: ALLTrunking VLANs Active: 1,2Pruning VLANs Enabled: 2-1001Priority for untagged frames: 0Override vlan tag priority: FALSEVoice VLAN: none在这个例子中，端口fa0/1的链路模式被设置为 （56） 状态，默认的VLAN是 （57） 。（56）A. DesirableB. No-NegotiateC. Auto negotiateD. trunk（57）A. VLAN0B. VLAN1C. VLAN2D. VLAN3
●试题一根据下面给出的一个VLAN的实例，回答问题。某IT公司现有行政部、技术部、市场部。VLAN的划分：行政部VLAN10，技术部VLAN20，市场部VLAN30，各部门之间还可以相互通讯。现有设备为：Cisco 3640路由器Cisco Catalyst 2924交换机一台，二级交换机若干台。交换机配置文件中的部分代码如下：……！interface vlan10ip address 192.168.0.1！interface vlan20ip address 192.168.1.1！interface vlan30ip address 192.168.2.1！……路由器配置文件中的部分代码如下：……interface FastEthernet 1／0.1encapsulation isl 10ip address 192.168.0.2！interface FastEthernet 1／0.2encapsulation isl 20ip address 192.168.1.2！interface FastEthernet 1／0.3encapsulation isl 30ip address 192.168.2.2！……！router ripnetwork 192.168.0.0！［问题1］何谓VLAN?［问题2］VLAN有哪几种划分方法?［问题3］interface vlan10 ip address 192.168.0.1代表什么含义?［问题4］interface FastEthernet 1／0.1代表什么含义?［问题5］VLAN的标准有哪些?
根据下面给出的一个VLAN的实例，回答问题。某IT公司现有行政部、技术部、市场部。VUN的划分：行政部VLAN10，技术部 VI且N20，市场部VLAN30，各部门之间还可以相互通讯。现有设备为：Cisco 3640路由器、 Cisco Catdyst 2924交换机一台以及二级交换机若干台。交换机配置文件中的部分代码如下：....!interface vlan10ip address 192.168.0.1!interface vlan20ip address 192. 168.1.1!interface vlan30ip address 192.168.2.1!....路由器配置文件中的部分代码如下:....interface Fast Ethernet 1/0.1encapsulation is1 10ip address 192.168. O.2interface Fast Ethernet 1/0.2encapsulation is1 20ip address 192.168.1.2interface Fast Ethernet 1/0.3encapsulation isl 30ip address 192.168.2.2router ripnetwork 192. 168. O. 0何谓VLAN?
下面用于在交换机中配置Trunk承载的VLAN的命令是( ) A、access vlan vlan-idB、port link-type trunkC、port trunk allow-pass vlanD、set port vlan vlan-id
交换机命令show interfaces type 0/port_#switchport|trunk用于显示中继连接的配置情况，下面是显示例子：2950# show interface fastEthernet 0/1 switchportName：fa 0/1Switchport： EnabledAdminiStratire mode：trunkOperational Mode：trunkAdminiStrotire Trunking Encapsulation：ctotlqOperational Trunking Encapsulation：dotlqegotiation of Trunking：DisabledAccess Mode VLAN：0 ((Inactire))Trunking Native Mode VLAN：1(default)Trunking VLANs Enabled：ALLTrunklng VLANs Actlve： 1，2Pruning VLANs Enabled：2-1001Priority for untagged frames：0Override vlan tag priority：FALSEVoice VLAN：nome在这个例子中，端口fa 0/1的链路模式被设置为 (56) 状态，默认的VLAN是 (57) 。（56）A．DesirableB．No-Negotiate]C．Auto negotiateD．trunk
阅读下面的配置信息，解释(6)处的命令。SwitehvlanSwitch(vlan)vlan 2(创建一个VLAN2)VLAN 2 added:Name:VLAN0002(系统自动命名)Switch(vlan)vlan 3 name vlan3(6)VLAN 3 added:Name:vlan3Switch(vlan)exit
mngvlanid命令用来设置集群的管理VLAN,下列关于管理VLAN的描述错误的是() A.缺省情况下，管理VLAN是VLAN1B.在命令交换机上更改管理VLAN的VLAM编号或者删除管理ⅥA及相应的VLANIF,集群不受影响C.在成员交换机上更改管理VLAN的VLAN编号,则成员交换机自动退出集群D.在将某VLAN指定为管理VLAN后,建议让HGMP独占此VLAN,避免与其他诸如RRPP、组播等业务使用同一个VLAN
要获悉当前交换机是哪些VLAN的根网桥,可使用下面哪两个命令?() A.show spanning-treeB.show root allC.show spann-ing-tree port root VLAND.show spanning-tree summary
In a switched environment, what does the IEEE 802.1Q standard describe?() A.the operation of VTPB.a method of VLAN trunkingC.an approach to wireless LAN communicationD.the process for root bridge selectionE.VLAN pruning vlan
Refer to the exhibit. Which statement is true?() A.The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20.B.VLAN 20 is running the Per VLAN Spanning Tree Protocol.C.The MAC address of the root bridge is 0017.596d.1580.D.SwitchA is not the root bridge, because not all of the interface roles are designated.
下面的交换机命令中（59） 为端口指定VLAN。A.Sl（config-if）# vlan-menbership staticB.S1（config-if）# vlan databaseC.Sl（config-iif）# switchport mode accessD.Sl（config-if）#switchport access vlan 1
如果要把交换机Trunk的许可VLAN列表改为默认的许可所有VLAN的状态，应该使用命令（）A、no switchporttrunkallowedvlanB、default switchpor t trunkallowed vlanC、switchport trunk allowed vlan resetD、reset switchport trunk allowed vlan
In a switched environment, what does the IEEE 802.1Q standard describe?（）A、the operation of VTPB、a method of VLAN trunkingC、an approach to wireless LAN communicationD、the process for root bridge selectionE、VLAN pruning vlan
Which four Cisco priority Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning Tree？ （）A、 PortFastB、 UplinkFastC、 loop guardD、 root guardE、 BPDU guardF、 BackboneFast
PTN设备使用下面哪个命令，可以查看对应vlan接口协议是否up，ip地址是否配置正确（）A、show interface vlan xxxxB、show vlan xxxxC、show vlan interfacexxxxD、show vlan
Exhibit SW1#show spanning-tree vlan 200 VLAN200 Spanning tree enabled protocol iee eRoot ID Priority 32968 Address 000c.ce29.ef00 Cost 19 Port 2 （FastEthernet0/2） Hello time 10 Sec Max Age 20 sec Forward Delay 30 sec Bridge ID Priority 32968 （priority 32768 sys-id-ext 200） Address 000c.ce2a.4180 Hello Time 2 sec Max Age 20 Sec Forward Delay 15 sec Interface Role Sts Cost PrioNbr Type Fa0/2 Root FWD 19 128.2 P2p Fa0/3 Altn BLK 19 128.3 P2p Based on the show spanning-tree vlan 200 output shown in the exhibit， which two statementsabout the STP process for VLAN 200 are true？（）A、BDPUs will be sent out every two secondsB、The time spent in the listening state will be 30 secondsC、The time spent in the learning state will be 15 secondsD、The maximum length of time that the BPDU information will be saved is 30 secondsE、This switch is the root bridge for VLAN 200F、BPDUs will be sent out every 10 seconds
Refer to the output shown on switch SW1 below： VLAN 1 bridge priority set to 8192. VLAN 1 bridge max aging time set to 20.VLAN 1 bridge hello time set to 2. VLAN 1 bridge forward delay set to 15. Switch is now the root switch for active VLAN 1. What command would you enter to reproduce this output？
单选题能够将分布交换机配置为生成树的主根交换机的命令是（）。Aspanning-tree vlan vlan-id primaryBspanning-tree vlan vlan-id root primaryCspanning-tree root primaryDspanning-tree bridge root
单选题如下图所示，3com和Cisco公司的交换机相互连接，在两台交换机之间需传输VLAN ID为1、10、20和30的5个VLAN信息，Catalyst3548交换机VLAN Trunk的正确配置是（ ）。ASwitch-3548（config-if）#switchport trunk encapsulation dotlqSwitch-3548（config-if）#switchport trunk allowed vlan 1，10，20，30BSwitch-3548（config-if）#switchport mode trunkSwitch-3548（config-if）#switchport trunk encapsulation islSwitch-3548（config-if）#switchport tnmk allowed vlan 1-30CSwitch-3548（config-if）#switchport mode trunkSwitch-3548（config-if）#switchport trunk encapsulation negotiateSwitch-3548（config-if）#switchport trunk allowed vlan 1-30DSwitch-3548（config-if）#switchport mode trunkSwitch-3548（config-if）#switchport trunk encapsulation dotlqSwitch-3548（config-if）#switchport trunk allowed vlan 1，10，20，30
问答题Refer to the output shown on switch SW1 below： VLAN 1 bridge priority set to 8192. VLAN 1 bridge max aging time set to 20.VLAN 1 bridge hello time set to 2. VLAN 1 bridge forward delay set to 15. Switch is now the root switch for active VLAN 1. What command would you enter to reproduce this output？
单选题关于VLAN mapping，下面说法不正确的是（）A交换机可以支持1：1VLAN mappingB交换机上可以支持对双层TAG的报文做VLAN mappingC交换机可以支持对外层VLAN做VLAN mappingD交换机不支持同一端口上多个VLAN映射到一个VLAN