General Knowledge Questions

153. A microprogram written as string of 0's and 1's is a

symbolic microinstruction

binary microinstruction

symbolic microprogram

binary microprogram

154. Which command lists the contents of current directory of a disk

Copy

Tree

Cd

Dir

155. Which of the following file organization is most effieient for a file with a high degree of file activity?

sequential

ISAM

VSAM

B-Tree

156. A communications device that combines transmissions from several I/O devices into one line is a

concentrator

modifier

multiplexer

full-duplex line

157. Which command displays all the files having the same name but different extensions?

Dir filename.*

Dir filename.ext

Dir *.sys

Dir *.ext

158. Most data communications involving telegraph lines use:

simplex lines

wideband channel

narrowband channel

dialed service

159. Which of the following is not a transmission medium?

telephone lines

coaxial cables

modem

microwave systems