多項選擇題A router with a serial interface will be used for an ISDN link.What other function group devices are required to complete the connection to the service provider? ()

A. TE1
B. TE2
C. TA
D. NT1
E. NT2


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2.多項選擇題Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?()

A.15.234.118.63
B.92.11.178.93
C.134.178.18.56
D.192.168.16.87
E.201.45.116.159
F.217.63.12.192

3.多項選擇題Which of the following host addresses are member of networks that can be routed across the public Internet? ()

A. 10.172.13.65
B. 172.16.223.125
C. 172.64.12.29
D. 192.168.23.252
E. 198.234.12.95
F. 212.192.48.254

4.多項選擇題Which connections allow the use of full-duplex Ethernet?()

A. Switch to host
B. Switch to switch
C. Hub to hub
D. Switch to hub
E. Host to host

5.單項選擇題What is the purpose of pressing the Ctrl+Break keys during the router password recover procedure?()

A. To restart the router.
B. To bypass the configuration in Flash.
C. To view the password before changes are made.
D. To bypass setup configuration mode.
E. To access ROM Monitor mode.