". VdoTips: Networking Multiple Choice Questions and Answers 71

Networking Multiple Choice Questions and Answers 71

351. A machine that connects to two or more electronic mail systems and transfers mail messages among them is known as _________
(A)gateways.
(B)mail gateway.
(C)bridges.
(D)user agent.
352. What is the usual number of bits transmitted in parallel data transmission used by micro computers?
(A)16
(B)8
(C)9
(D)4
353. What are the most commonly used transmission speeds in BPS used in data communication?
(A)300.
(B)2400.
(C)1200.
(D)9600.
354. Many large organization with their offices in different countries of the world connect their computers through telecommunication satellites and telephone lines. Such communication network is called _________
(A)LAN.
(B)WAN.
(C)ECONET.
(D)ETHERNET.
355. What is the minimum number of wires required for sending data over a serial communications links?
(A)2
(B)1
(C)4
(D)3