You have configured a Ezonexam switch as shown below:Ezonexam3(config-if) switchport port-securityEzonexam3(config-if) switchport port-security mac-address stickySelect the action below that results from executing these commands.A. A dynamically learned M

题目

You have configured a Ezonexam switch as shown below:

Ezonexam3(config-if) switchport port-security

Ezonexam3(config-if) switchport port-security mac-address sticky

Select the action below that results from executing these commands.

A. A dynamically learned MAC address is saved in the VLAN database.

B. A dynamically learned MAC address is saved in the startup-configuration file.

C. Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.

D. A dynamically learned MAC address is saved in the running-configuration file.

E. Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.

F. None of the above

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相似问题和答案

第1题：

阅读以下说明和交换机的配置信息，回答问题1～3，将解答填入对应栏内。

某公司下设3个部门，为了便于管理，每个部门组成一个VLAN，公司网络结构如图1所示。

[交换机Switch1的部分配置信息]

Switch1(config)tinterface fO/9

Switch1(config-if)switchport mode access

Switch1(config-if)switchport access vlan 11

Switch1(config)interface fO/10

Switch1(config-if)switchport mode access

Switch1(config-if)switchport access vlan 12

Switch1(config)interface fO/17

Switch1(config-if)switchport mode access

Switch1(config-if)switchport access vlan 13

[交换机Switch2的部分配置信息]

Switch2(config)interface fO/6

Switch2(config-if)switchport mode access

Switch2(config-if)switchport access vlan 11

Switch2(config)interface fO/8

Switch2(config-if)switchport modeaccess

Switch2(config-if)switchport access vlan 12

Switch2(config)interface fO/11

Switch2(config-if)switchport mode access

Switch2(config-if)SWitchport access vlan 13

[交换机Switch3的部分配置信息]

Switch3(config)interface fO/3

Switch3(config-if)switchport mode access

Switch3(config-if)switchport access vlan 11

Switch3(config-if)exit

Switch3(config)interface fO/7

Switch3(config-if)switchport mode access

Switch3(config-if)switchport access vlan 12

Switch3(config)interface fO/13

Switch3(config-if)switchport mode access

Switch3(config-if)switchport aocess vlan 13

划分VLAN有哪几种划分方式?

正确答案：划分方式有：①交换机端口划分；②MAC地址划分；③第三层协议划分；④IP组播划分；⑤策略划分。
划分方式有：①交换机端口划分；②MAC地址划分；③第三层协议划分；④IP组播划分；⑤策略划分。

第2题：

在一台cisco catalyst 2950交换机上,要将端口F0／1设置为永久中继模式,需要使用( )配置命令。

A、Switch(config-if)#switchport mode access

B、Switch(config-if)#switchport dynamic auto

C、Switch(config-if)#switchport mode trunk

D、Switch(config-if)#switchport mode dynamic

正确答案：C

第3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ULANID为1、10、20和30的4个VLAN信息，Catalyst 3548交换机VLAN Trunk的正确配置是

A．Switch-3548 (config-if) #switchport trunk encapsulation dot 1 q Switch-3548 (config-if) #switchport trunk allowed vlan 1,10,20,30

B．Switch-3548 (config-if) #switchport mode trunk Switch-3548 (config-if) #switchport trunk encapsulation isl Switch-3548 (config-if) #switchport trunk allowed vlan 1-30

C．Switch-3548 (config-if) #switchport mode trunk Switch-3548 (config-if) #switchport trunk encapsulation negotiate Switch-3548 (config-if) #switchport trunk allowed vlan 1-30

D．Switch-3548 (config-if) #switchport mode trunk Switch-3548 (config-if) #switchport trunk encapsulation dot 1q Switch-3548 (config-if) #switchport trunk allowed vlan 1,10,20,30

正确答案：D

第4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

参考答案：E

第5题：

The network security policy for Ezonexam requires that only one host be permitted to attach dynamically to each switch interface. If that policy is violated, the interface should be automatically disabled. Which two commands must the Ezonexam network administrator configure on the 2950 Catalyst switch to meet this policy? (Choose two)

A．SWEzonexam1(config-if)# switchport port-security maximum 1

B．SWEzonexam1(config)# mac-address-table secure

C．SWEzonexam1(config)# access-list 10 permit ip host

D．SWEzonexam1(config-if)# switchport port-security violation shutdown

E．SWEzonexam1(config-if)# ip access-group 10

正确答案：AD
解析：ExplanationCatalystswitchesoffertheportsecurityfeaturetocontrolportaccessbasedonMACaddresses.Toconfigureportsecurityonanaccesslayerswitchport,beginbyenablingitwiththefollowinginterfaceconfigurationcommand:Switch(config-if)#switchportport-securityNext,youmustidentifyasetofallowedMACaddressessothattheportcangrantthemaccess.Youcanexplicitlyconfigureaddressesortheycanbedynamicallylearnedfromporttraffic.Oneachinterfacethatusesportsecurity,specifythemaximumnumberofMACaddressesthatwillbeallowedaccessusingthefollowinginterfaceconfigurationcommand:Switch(config-if)#switchportport-securitymaximummax-addrFinally,youmustdefinehoweachinterfaceusingportsecurityshouldreactifaMACaddressisinviolationbyusingthefollowinginterfaceconfigurationcommand:Switch(config-if)#switchportport-securityviolation{shutdown|restrict|protect}AviolationoccursifmorethanthemaximumnumberofMACaddressesarelearned,orifanunknown(notstaticallydefined)MACaddressattemptstotransmitontheport.Theswitchporttakesoneofthefollowingconfiguredactionswhenaviolationisdetected:shutdown-Theportisimmediatelyputintotheerrdisablestate,whicheffectivelyshutsitdown.Itmustbere-enabledmanuallyorthrougherrdisablerecoverytobeusedagain.restrict-Theportisallowedtostayup,butallpacketsfromviolatingMACaddressesaredropped.TheswitchkeepsarunningcountofthenumberofviolatingpacketsandcansendanSNMPtrapandasyslogmessageasanalertoftheviolation.protect-Theportisallowedtostayup,asintherestrictmode.Althoughpacketsfromviolatingaddressesaredropped,norecordoftheviolationiskept.

第6题：

阅读以下说明和交换机的配置信息，回答问题1-3。

【说明】

某公司下设3个部门，为了便于管理，每个部门组成一个VLAN，公司网络结构如图1-5所示。

【交换机Switch1的部分配置信息】

Switch 1(config)finterfacefO/9

Switch1(config-if)switchport mode access

Switch1(config-if)switchport access vlan 11

Switch1(config)interface fO/1O

Switch1(config-if)switchport mode access

Switch1(config-if)switchport access vlan 12

Switch1(config)interface fO/17

Switch1(config-if)switchport mode access

Switch1(config-if)switchport access vlan 13

【交换机Switch2的部分配置信息】

Switch2(config)interface fO/6

Switch2(config-if)switchport mode access

Switch2(config-if)switchport access vlan 11

Switch2(config)interface fO/8'

Switch2(config-if)switchport mode access

Switch2(config-if)switchport access vlan 12

Switch2(config)interface fO/11

Switch2(config-if)switchport mode access

Switch2(config-if)switchport access vlan 13

【交换机Switch3的部分配置信息】

Switch3(config)interface fO/3

Switch3(config-if)switchport mode access

Switch3(config-if)switchport access vlan 11

Switch3(config-if)exit

Switch3(config)interface fO/7

Switch3(config-if)switchport mode access

Switch3(config-if)switchport access vlan 12

Switch3(config)interface fO/13

Switch3(oonfig-if)switchport mode access

Switch3(config-if)switchport access vlan 13

通常VLAN有静态和动态两种实现方式，这两种方式分别是如何实现的?各有什么特点?

Switch1采用的是哪种实现方式?

正确答案：在静态实现方式中网络管理员将交换机端口静态地分配给某一个VLAN这是经常使用的一种配置方式容易实现和监视比较安全。在动态实现方式中管理员必须先建立一个较复杂的数据库例如输入要连接的网络设备的MAC地址及相应的VLAN号这样当网络设备接到交换机端口时交换机自动把这个网络设备所连接的端口分配给相应的 VLAN。动态VLAN的配置可以基于网络设备的MAC地址、IP地址、应用的协议来实现。动态VLAN一般通过管理软件来进行管理。Switch1采用静态实现方式。
在静态实现方式中，网络管理员将交换机端口静态地分配给某一个VLAN，这是经常使用的一种配置方式，容易实现和监视，比较安全。在动态实现方式中，管理员必须先建立一个较复杂的数据库，例如输入要连接的网络设备的MAC地址及相应的VLAN号，这样，当网络设备接到交换机端口时，交换机自动把这个网络设备所连接的端口分配给相应的 VLAN。动态VLAN的配置可以基于网络设备的MAC地址、IP地址、应用的协议来实现。动态VLAN一般通过管理软件来进行管理。Switch1采用静态实现方式。

第7题：

You are bringing up a new Ezonexam 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

正确答案：E
解析：Explanation:
The only real choices for setting up switching trunks are ISL and 802.1Q. ISL is Cisco proprietary, while 802.1Q uses the IEEE defined standard for trunking between switches.

To configure the 802.1Q standard, the keyword "dot1q" is used in Cisco switches.

Incorrect Answers:
A, B, D. These are not valid options in a Cisco switch.

C. ISL is a Cisco proprietary method for setting up trunks, and will only work between Cisco switches.

第8题：

You need to configure an 802.1Q link on a Ezonexam switch. Which commands, when used together, would do this? (Select two answer choices)

A. Switch(vlan) mode trunk

B. Switch(config) switchport access mode trunk

C. Switch(config-if) switchport mode trunk

D. Switch(config-if) switchport trunk encapsulation dot1q

E. Switch(config) switchport access mode 1

F. Switch(vlan) trunk encapsulation dot1q

正确答案：CD
C,D 解析：Explanation:
Creating this trunk link is a two step process. First you have to set the switchport mode to trunk, and then you configure the encapsulation. The giveaway on this question is the fact that to create a trunk on an interface, you have to be in interface configuration mode. So switchport mode trunk sets the trunk, and switchport trunk encapsulation dot1q sets the encapsulation.

第9题：

Which interface commands would you enter on a Catalyst 2900 switch, if your goal was to bring all VLAN traffic to another directly connected switch?()

A. Switch(config-if)# vlan all

B. Switch(config-if)# switchport trunk encapsulation dot1q

C. Switch(config-if)# switchport access vlan all

D. Switch(config-if)# switchport mode trunk

E. Switch(config-if)# switchport access vlan 303

参考答案：C, D

第10题：

Select the action that results from executing these commands.()Switch(config－if) switchport port－securitySwitch(config－if) switchport port－security mac－address sticky

A.A dynamically learned MAC address is saved in the startup-configuration file.

B.A dynamically learned MAC address is saved in the running-configuration file.

C.A dynamically learned MAC address is saved in the VLAN database.

D.Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.

E.Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received.

参考答案：B

You have configured a Ezonexam switch as shown below:Ezonexam3(config-if) switchport port-securityEzonexam3(config-if) switchport port-security mac-address stickySelect the action below that results from executing these commands.A. A dynamically learned M

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