單項選擇題A router has two FastEthernet interfaces and needs to connect to four vlans in the local network.How can you accomplish this task,using the fewest physical interfaces and without decreasing network performance?（）

A.Add two more FastEthernet interfaces.
B.Add a second router to handle the vlan traffic.
C.Use a hub to connect the four vlans with a FastEthernet interface on router.
D.Implement a router-on-a-stick configuration.


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1.單項選擇題

Refer to the exhibit a network administrator cannot establish a telnet session with the indicated router at is the cause of this failure?（）

A .A level 5 password is not set
B.The vty password is missing
C.The console password is missing
D.An ACL is blocking Telnet access

2.單項選擇題Refer to the exhibit. When running EIGRP, What is required for RouterA to exchange routing updates with RouterC?（）

A.As numbers must be changed to match on all the routers.
B.Loopback interface must be configured so a DR is elected.
C.The no auto-summary command is needed on Router A and Router C.
D.Router B needs to have two network statements, one for each connected network.

3.單項選擇題

Refer to the exhibit. Which of these statements correctly describes the state of the switch once the boot process has been completed?（）

A.As FastEthernet0/12 will be the last to come up, it will not be blocked by STP.
B.Remote access management of this switch will not be possible without configuration change.
C.More VLANs will need to be created for this switch.
D.The switch will need a different IOS code in order to support VLANs and STP.

4.單項選擇題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.

5.多項選擇題Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch?（）

A.SW1#show swithport port-security interface FastEthernet 0/12
B.SW1# show swithport port-secure interface FastEthernet 0/12
C.SW1# show port-secure interface FastEthernet 0/12
D.SW1#show running-config
E.SW1#show port-security interface FastEthernet 0/12