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30. A network which is used for sharing data, software and hardware among several users owning microcomputers



A.  LAN   B. WAN  C. MAN  D. VAN

 

31. A FRONT-END PROCESSOR IS:

A. A USER COMPUTER SYSTEM

B. A PROCESSOR IN A LARGE-SCALE COMPUTER THAT EXECUTES OPERATING SYSTEM INSTRUCTIONS

C. PRELIMINARY PROCESSOR OF BATCH JOBS

D. A MICROCOMPUTER THAT RELIEVES MAIN-FRAME COMPUTERS AT A COMPUTER CENTER OF COMMUNICATION CONTROL FUNCTIONS

 

32. THE TRANSFER OF DATA FROM A CPU TO PERIPHERALS DEVICES OF A COMPUTERS IS ACHIEVED THROUGH:

A. COMPUTER PORTS  B. INTERFACE  C. MODEMS  D. BUFFER MEMORY

 

33. WHICH OF THE FOLLOWING LAYER PROTOCOLS ARE RESPONSIBLE FOR USER THE APPLICATION PROGRAM SUPPORT SUCH AS PASSWORDS, RESOURCE SHARING FILE, AND TRANSFER AND TRANSFER AND NETWORKS MANAGEMENT?

A. LAYER 7 PROTOCOL  B. LAYER 5 PROTOCOL  C. LAYER 6 PROTOCOL  D. LAYER 4 PROTOCOL

 

34. THE OSI MODEL, WHICH OF THE FOLLOWING LAYER TRANSFORMS INFORMATION FROM MACHINE FORMAT INTO THAT UNDERSTANDING BY USER

A. APPLICATION B. PRESENTATION  C. SESSION D. PHYSICAL

 

35. WHICH LAYER OF OSI DETERMINES THE INTERFACE OF THE SYSTEM WITH THE USER?

A. NETWORK  B. APPLICATION  C. DATA LINK  D.  SESSION

 

36. FREQUENCY RANGE OF TWISTED-PAIR CABLE IS:

A. 100 HZ-300 KHZ   B.  100 HZ- 5 MHZ   C. 0-5 MHZ  D. 300KHZ-6MHZ



37. IN ASYNCHRONOUS TRANSMISSION, RECEIVER

A. KNOW WHEN A DATA UNIT IS SENT  B. DOES NOT RECOGNIZE BEGINNING AND END OF THE DATA UNIT  C. RECOGNIZE BEGINNING AND END OF THE DATA UNIT  D. NONE OF THESE

 

38. WHICH OF THE FOLLOWING IS SYNCHRONOUS PROTOCOL

A. SDLC  B. YMODEM  C. XMODEM  D. BLAST

 

39. WHICH OF THE FOLLOWING ARE SUB-LAYERS OF DATA LINK LAYERS

A. LOGICAL LINK CONTROL,DATA LINK CONTROL  B. DATA LINK CONTROL, LOGICAL LINK CONTROL

C. PHYSICAL LAYER CONTROL, DATA LINK CONTROL  D. MEDIA ACCESS CONTROL, LOGICAL LINK CONTROL

 

40. INTEROPERABILITY  IS THE FUNCTION OF:

A. NETWORK LAYER  B.  TRANSPORT LAYER  C. PRESENTATION LAYER  D. APPLICATION LAYER

 

ANSWERS

A,D,A,A,B,B,B,C,A,D,C

 

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