单项选择题

A company plans to implement a wired network between several computers. The company wants this network to be able to have a transmission rate of 1Gbps. Which of the following cable types should be purchased?（）

A.Coaxial
B.CAT3
C.CAT5
D.CAT5e

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单项选择题

Which of the following protocols uses port 119, by default?（）

A.NNTP
B.NTP
C.TFTP
D.FTP

单项选择题

When the DHCP server is unavailable for a network, how will PCs attempt to configure their NICs?（）

A. PCs will attempt to use the last address assigned to them
B. PCs will pull from a static address pool
C. PCs will use APIPA
D. PCs will prompt the user for an address

单项选择题

A user is trying to connect their new desktop to the network but is unable to get an IP address.
The technician tests the cable and finds that there are too many open pairs.
Which of the following wiring standards needs to be used in the replacement cable?（）

A. 568B
B.Crossover
C. 569-A
D. 607-A