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單項選擇題Which component of VPN technology ensures that data can be read only by its intended recipient？（）

A.data integrity
B.encryption
C.key exchange
D.authentication

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1.多項選擇題If IP routing is enabled, which two commands set the gateway of last resort to the default gateway?（）

A.ip default-gateway 0.0.0.0
B.ip route 172.16.2.1 0.0.0.0 0.0.0.0
C.ip default-network 0.0.0.0
D.ip default-route 0.0.0.0 0.0.0.0 172.16.2.1
E.ip route 0.0.0.0 0.0.0.0 172.16.2.1

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2.單項選擇題A default Frame Relay WAN is classified as what type of physical network（）。

A.point-to-point
B.broadcast multi-access
C.nonbroadcast multi-access
D.nonbroadcast multipoint
E.broadcast point-to-multipoint

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3.單項選擇題A system administrator types the command to change the hostname of a router. Where on the Cisco IFS is that change stored?（）

A.NVRAM
B.RAM
C.FLASH
D.ROM
E.PCMCIA

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4.單項選擇題Which command is used to load a configuration from a TFTP server and merge the configuration into RAM?（）

A.copy running-config: TFTP
B.copy TFTP: running-config
C.copy TFTP: startup-config
D.copy startup-config: TFTP

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5.多項選擇題Which two commands correctly verify whether port security has been configured on port FastEthernet0/12 on a switch？（）

A.SW1#shows withport port-security interface FastEthernet0/12
B.SW1#shows withport port-secure interface FastEthernet0/12
C.SW1#show port-secure interface FastEthernet0/12
D.SW1#show running-config

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