Computer GK Questions And Answers :: Computer Fundamentals


49. Which of the following communications lines is best suited to interactive processing applications?

narrow band channel
simplex lines
full duplex lines
mixed band channels

50. In a synchronous modem, the receive equilizer is known as

daptive equilizer
mpariment equilizer
tatistical equilizer
ompromise equilizer

51. Maximum length of DOS command using any optional parameter is

26 characters
87 characters
127 characters
None of above

52. xcopy command can copy

individual files or group of files
directories including subdirectories
to diskette of a different capacity
all of above

53. What is the number of separate protocol layers at the serial interface gateway specified by the X.25 standard?


54. CHKDSK can be used to find

Disk�s bad portion
Occupied space
Free space
All of above

55. One disadvantage of a direct access file is:

the delay in computiong the storage address
duplication of address locations
unsued, but available, storage locations
all of above

56. What is the main difference between DDCMP and SDLC?

DCMP does not need special hardware to final the beginning of a message
DCMP has a message header
DLC has a IP address
DLC does not use CRC

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