單項選擇題

In order to allow the establishment of a Telnet session with a router, which set of commands must be configured?（）

A.A
B.B
C.C
D.D
E.E
F.F


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2.多項選擇題Which two values are used by Spanning Tree Protocol to elect a root bridge? (Choose two.)（）。

A.amount of RAM
B.bridge priority
C.IOS version
D.IP address
E.MAC address
F.speed of the links

6.單項選擇題A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?（）

A.This is a 10 Mb/s switch port.
B.This is a 100 Mb/s switch port.
C.This is an Ethernet port operating at half duplex.
D.This is an Ethernet port operating at full duplex.
E.This is a port on a network interface card in a PC

7.單項選擇題Which spread spectrum technology does the 802.11b standard define for operation?（）

A.IR
B.DSSS
C.FHSS
D.DSSS and FHSS
E.IR, FHSS, and DSSS 

9.多項選擇題What are two recommended ways of protecting network device configuration files from outside network security threats? (Choose two.)（）

A.Allow unrestricted access to the console or VTY ports.
B.Use a firewall to restrict access from the outside to the network devices.
C.Always use Telnet to access the device command line because its data is automatically encrypted.
D.Use SSH or another encrypted and authenticated transport to access device configurations.
E.Prevent the loss of passwords by disabling password encryption. 

最新試題

While troubleshooting a network problem,a technician discovers that the current copy of the Cisco IOS is outdated and needs to be updated.Which of the following commands would the technician issue to replace the Cisco router IOS with the newer version?（）

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