1111. Data is transmitted character by character in _________.
A. Synchronous mode
B. Asynchronous mode *
C. Remote communication
D. Satellite mode
1112. All of the following are guided communication media except __________.
A. Fiber-optic cable
B. Wire cable
C. Coaxial cable
D. Satellite -based Microwave communication *
1113. Which of the following cable is comprised of two separate insulated copper wires that are twisted ?
A. Fiber optics
B. Twisted pair wire *
1114. Communication between a computer and keyboard involves______transmission_________.
A. Half duplex
B. Full- duplex
C. Simplex *
1115. The encoding scheme of data represents as __________.
A. EBCDIC code
B. ASCII code
D. All of the above *
1116. The ________ is the physical path over which a message travels _______.
D. Medium *
1117. Following devices are used in simplex mode _________.
C. A and B *
1118. The characteristics of analog carrier waves are ________.
A. Binary numbers
D. B and C *
1119. A fibre-optic cable consists of tubes of _________.
B. Glass *
1120. Wireless modems transmit the data signals through________.
A. Air *
D. None of the above