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11. After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?
A. Telex
B. Word processor
C. Facsimile
D. Electronic mail
E. None of the above
12. Which file transfer protocol uses UDP?
A. NFS
B. TELNET
C. TFTP
D. FTP
E. None of the above
13. You are working with a class C network. You are required to configure it for five subnets, each of which will support 25 nodes. What subnet should you use?
A. 255.255.255.0
B. 255.255.255.224
C. 255.255.255.240
D. 255.255.255.248
E. 255.255.255.252
14. A network designer wants to connect 5 routers as point-to-point simplex line. Then the total number of lines required would be
A. 5
B. 10
C. 20
D. 32
E. None of the above
15. Which of the following medium access control technique is used for bus/tree?
A. token ring
B. token bus
C. CSMA
D. MAC
E. None of the above
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