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port-security的restrict action是什么意思？
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考题
使用VC6打开考生文件夹下的工程test16_1，此工程包含一个源程序文件test16_1.cpp，但该程序运行有问题，请改正程序中的错误，使程序的输出结果为：Which act(a or b)?bact1act2Bact3Bact4Bend源程序文件test16_1.cpp清单如下：include＜iostream.h＞class A{public：virtual void act1(){cout＜＜"actl\n"；act2()；}void act2(){cout＜＜"act2\n"；act3()；}/**********+****** found *****************/void act3(){cout＜＜"Aact3\n"；act4()；}/***************** found *****************/virtual void act4{cout＜＜"Aact4\n"；act5()；}void act5(){cout＜＜"Aend\n"；}}；class B：public A{void act3(){cout＜＜"Bact3\n"；act4()；}void act4() {cout＜＜"Bact4\n";act5() ;}void act5() {cout＜＜"Bend\n";}};void main (void){char c;A *a;cout＜＜"Which act (a or b) ?";/***************** found *****************/cin＜＜c;if(c=='a')a = new A;elsea = new B;a-＞act1 ( );delete a;}
考题
A Bridged 1483 network is grouping all DSL users into a single logical subnet.Which configuration command prevents the end users from directly communicating with each other?()
A. no ip arpB. no ip proxy-arpC. restrict ip arpD. restrict ip proxy-arp
考题
Why is it appropriate to use conditional label advertising when deploying MPLS? ()
A. to make CEF tables smallerB. to enable label switching on the frame mode interfaceC. to restrict MPLS availability to predefined time periodsD. to restrict label switching to a limited number of networksE. to restrict end users from seeing the routers in the MPLS network
考题
__________ is the act performed by or resulting from saying something; it is the consequence of, or the change brought about by the utterance.A.A locutionary act
B.An illocutionary act
C.A perlocutionary act
D.A performative act
考题
Why is it appropriate to use conditional label advertising when deploying MPLS? （）A、to make CEF tables smallerB、to enable label switching on the frame mode interfaceC、to restrict MPLS availability to predefined time periodsD、to restrict label switching to a limited number of networksE、to restrict end users from seeing the routers in the MPLS network
考题
As a network administrator, you are required to deploy MPLS technology. During the deployment, it is recommended to apply conditional label advertising. What is most probably the reason for that?（）A、to enable label switching on the frame mode interfaceB、to restrict MPLS availability to predefined time periodsC、to restrict end users from seeing the routers in the MPLS networkD、to restrict label switching to a limited number of networks
考题
在使用控制器WX5002和APWA2110的无线组网中，如果需要对无线用户进行802.1X认证时，首先需要配置哪条命令？（）A、dot1x authentication-method papB、port-security enableC、port-security authorization ignoreD、port-security tx-key-type 11key
考题
A Company switch was configured as shown below： switchport mode access switchport port-security switchport port-security maximum 2 switchport port-security mac-address 0002.0002.0002 switchport port-security violation shutdown Given the configuration output shown above， what happens when a host with the MAC address of 0003.0003.0003 is directly connected to the switch port？ （）A、 The host will be allowed to connect.B、 The port will shut down.C、 The host can only connect through a hub/switch where 0002.0002.0002 is already connected. D、 The host will be refused access.E、 None of the other alternatives apply
考题
A Bridged 1483 network is grouping all DSL users into a single logical subnet. Which configuration command prevents the end users from directly communicating with each other?（）A、no ip arpB、no ip proxy-arpC、restrict ip arpD、restrict ip proxy-arp
考题
Which two statements are true about WHERE and HAVING clauses? （）A、A WHERE clause can be used to restrict both rows and groups.B、A WHERE clause can be used to restrict rows only.C、A HAVING clause can be used to restrict both rows and groups.D、A HAVING clause can be used to restrict groups only.E、A WHERE clause CANNOT be used in a query if the query uses a HAVING clause.F、A HAVING clause CANNOT be used in subqueries.
考题
单选题A Company switch was configured as shown below： switchport mode access switchport port-security switchport port-security maximum 2 switchport port-security mac-address 0002.0002.0002 switchport port-security violation shutdown Given the configuration output shown above， what happens when a host with the MAC address of 0003.0003.0003 is directly connected to the switch port？ （）A
The host will be allowed to connect.B
The port will shut down.C
The host can only connect through a hub/switch where 0002.0002.0002 is already connected. D
The host will be refused access.E
None of the other alternatives apply
考题
单选题Why is it appropriate to use conditional label advertising when deploying MPLS?（）A
to make CEF tables smallerB
to enable label switching on the frame mode interfaceC
to restrict MPLS availability to predefined time periodsD
to restrict label switching to a limited number of networksE
to restrict end users from seeing the routers in the MPLS network
考题
单选题As a network administrator, you are required to deploy MPLS technology. During the deployment, it is recommended to apply conditional label advertising. What is most probably the reason for that?（）A
to enable label switching on the frame mode interfaceB
to restrict MPLS availability to predefined time periodsC
to restrict end users from seeing the routers in the MPLS networkD
to restrict label switching to a limited number of networks
考题
单选题Which set of commands is recommended to prevent the use of a hub in the access layer?（）A
switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1B
switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1C
switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1D
switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1
考题
多选题Which two statements are true about WHERE and HAVING clauses? （）AA WHERE clause can be used to restrict both rows and groups.BA WHERE clause can be used to restrict rows only.CA HAVING clause can be used to restrict both rows and groups.DA HAVING clause can be used to restrict groups only.EA WHERE clause CANNOT be used in a query of the query uses a HAVING clause.FA HAVING clause CANNOT be used in subqueries.
考题
单选题Which of the following is the main idea of the passage?A
Many universities ban or restrict the sale ofbottled water.B
Many states ban or restrict the sale ofbottled water.C
The bottled water industry is concerned about its decreasing sales.D
Many people are opposed to the bottled water ban.
考题
问答题switchort port-security violation选择shutdown表示什么意思？
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