單項(xiàng)選擇題Which layer 2 protocol encapsulation type supports synchronous and asynchronous circuis and has built-in security mechanisms?()

A. Frame Relay
B. HDLC
C. x.25
D. PPP


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1.單項(xiàng)選擇題In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?()

A. after broken links are re-established
B. in an improperly implemented redundant topology
C. when upper-layer protocols require high reliability
D. during high traffic periods
E. when a dual ring topology is in use

2.單項(xiàng)選擇題Which command sets and automatically encrypts the privileged enable mode password?()

A. enbale password c1sco
B. secret enable c1sco
C. password enable c1sco
D. enable secret c1sco

3.單項(xiàng)選擇題Which statement is true?()

A. An IPv6 address is 64 b long and is represented as hexadecimal characters.
B. An IPv6 address is 32 b long and is represented as decimal digits.
C. An IPv6 address is 128 b long and is represented as decimal digits.
D. An IPv6 address is 128 b long and is represented as hexadecimal characters.

4.單項(xiàng)選擇題When upgrading the IOS image, the network administrator receives the exhibited error message. What could be the cause of this error?()

A. The new IOS image is too large for the router flash memory.
B. The TFTP server is unreachable from the router.
C. The new IOS image is not correct for this router platform.
D. The IOS image on the TFTP server is corrupt.
E. There is not enough disk space on the TFTP server for the IOS image.

5.單項(xiàng)選擇題

This graphic shows the results of an attempt to open a Telnet connection to router ACCESS1 from router Remote27. Which of the following command sequences will correct this problem? ()

A. ACCESS1(config)# line console 0 ACCESS1(config-line)# password cisco
B. Remote27(config)# line console 0 Remote27(config-line)# login Remote27(config-line)# password cisco
C. ACCESS1(config)# line vty 0 4 ACCESS1(config-line)# login ACCESS1(config-line)# password cisco
D. Remote27(config)# line vty 0 4 Remote27(config-line)# login Remote27(config-line)# password cisco
E. ACCESS1(config)# enable password cisco
F. Remote27(config)# enable password cisco

最新試題

Which statement is true, as relates to classful or classless routing?()

題型:?jiǎn)雾?xiàng)選擇題

A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem?()Router(config)#router ospf 1Router(config-router)#network 10.0.0.0 255.0.0.0 area 0

題型:?jiǎn)雾?xiàng)選擇題

When you are troubleshooting an ACL issue on a router,which command can help you to verify which interfaces are affected by the ACL?()

題型:?jiǎn)雾?xiàng)選擇題

The network administrator cannot to switch 1 over a telnet session,although the hosts attached to switch 1 can ping the interface Fa0/0 of the router.Given the information in the graphic and assuming that the router and switch2 are configured properly,which of the following commands should be issued on switch 1 to correct this problem?()

題型:?jiǎn)雾?xiàng)選擇題

Which command encrypts all plaintext passwords?()

題型:?jiǎn)雾?xiàng)選擇題

If all OSPF routers in a single area are configured with the same priority value,what value dose a router use for the ODPF router ID in the absence of a loopback interface?()

題型:?jiǎn)雾?xiàng)選擇題

Which pairing reflects a correct protocol-and-metric relationship?()

題型:?jiǎn)雾?xiàng)選擇題

Which statement describes the rule of split horizon?()

題型:?jiǎn)雾?xiàng)選擇題

What is the default administrative distance of OSPF?()

題型:?jiǎn)雾?xiàng)選擇題

How are VTP advertisements delivered to switches across the network?()

題型:?jiǎn)雾?xiàng)選擇題