Test Series - computer fundamental

Test Number 71/95

Q: A term that defines the direction of flow of information between devices.
A. interconnectivity
B. intra connectivity
C. transmission mode
D. transmission
Solution: The term transmission mode defines the direction of flow of information between two communication devices. It tells the direction of signal flow.
Q: Transmission mode controls the direction of signal flow.
A. True
B. False
C. none
D. ..
Solution: The statement is true. The term transmission mode defines the direction of flow of information between two communication devices. It tells the direction of signal flow between two devices.
Q: Which of the following isn’t a type of transmission mode?
A. physical
B. simplex
C. full duplex
D. half duplex
Solution: There are three modes of transmission: simplex, half duplex and full duplex. Transmission modes tell the direction of signal flow between two devices.
Q: A transmission that generally involves dedicated circuits.
A. simplex
B. half duplex
C. full duplex
D. semi-duplex
Solution: The answer is simplex. Simplex generally involves dedicated circuits. TV broadcasting is an example.
Q: A transmission mode that can transmit data in both the directions but transmits in only one direction at a time.
A. simplex
B. half duplex
C. full duplex
D. semi-duplex
Solution: The half duplex mode supports two way traffic but only in one direction at a time. The interactive transmission of data within a time sharing system may be best suited to half-duplex lines.
Q: A communication between a computer and a keyboard involves ____________ duplex transmission.
A. simplex
B. half duplex
C. full duplex
D. semi-duplex
Solution: It involves simplex duplex transmission. Another example of a simplex duplex transmission is loudspeaker system.
Q: Telephone networks operate in this mode.
A. simplex
B. half duplex
C. full duplex
D. semi-duplex
Solution: Telephone networks operate in full duplex mode. It can transmit data in both the directions.
Q: Fire alarms are based on this type of transmission:
A. direct
B. network
C. analog
D. multiple
Solution: Analog transmission is a technique of transmitting voice, data, image, signal or video information. Fire alarm systems work in the same way.
Q: A technique of transmitting data or images or videos (information) using a continuous signal.
A. direct
B. network
C. analog
D. multiple
Solution: Analog is a technique of transmitting data or images or videos (information) using a continuous signal, which varies in amplitude, phase or some other property.
Q: A walkie-talkie operates in ____________
A. simplex
B. half duplex
C. full duplex
D. semi-duplex
Solution: A walkie-talkie operates in half duplex mode. It can only send or receive a transmission at any given time.

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