单项选择题

A.Four port switchB.Four port wireless routerC.Four por……

A user has a small network of four computers that they want to connect to a single cable modem. Which of the following devices would allow the user to do this？（）

A.Four port switch
B.Four port wireless router
C.Four port WAP
D.Four port hub

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单项选择题Auserstatesthattheycannotaccessanetworkshareddrive.Thetechnicianhasverifiedthattheclientsnetworkcableisgood.TheIPaddressofthemachineis169.254.10.15.Whichofthefollowingisthecauseoftheproblem？（）

A.The WINS server is not resolving names properly.
B.The DNS server is not resolving names.
C.The DHCP server is out of IP address leases.
D.The hosts file is corrupted.

单项选择题EnsuringthatdataistransmittedsecurelyoveranIPnetworkisthemainpurposeof：（）

A.Telnet
B.FTP
C.SIP
D.TLS

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A.Number of twists in wires
B.Number of wires
C.Lubricant
D.Foil

多项选择题Whichofthefollowingwouldbeconsideredaroutingprotocol？（）

A.OSPF
B.DHCP
C.SMTP
D.SNMP
E.RIP

单项选择题WhichofthefollowingnetworkservicesisresponsibleformappingnamestoIPaddresses？（）

A.DHCP
B.DNS
C.IMAP4
D.Telnet