Computer GK Questions And Answers :: Computer Fundamentals










Computer GK QUESTIONS AND ANSWERS 145 to 152

145. RESTORE command is used to

Restore files from disks made using the BACKUP command
Restore files which are deleted
Restore files from recycle bin
Restore files which are deleted recently

146. How many OSI layers are covered in the X.25 standard?

Two
Three
Seven
Six

147. What is the minimum number of wires needed to send data over a serial communication link layer?

1
2
4
6

148. Sequential file organization is most appropriate for which of following applications?

Grocery store checkout
bank checking account
payroll
airline reservations

149. Which command creates a directory or subdirectory?

Dir
Mkdir
Md
Both b and c

150. The maximum length in DOS commands is

80 chars
127 chars
100 chars
8 chars

151. Where does a computer add and compare data?

Hard disk
Floppy disk
CPU chip
Memory chip

152. Layer one of the OSI model is

physical layer
link layer
transport layer
network layer

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