Fbise Notes-Computer | DATA COMMUNICATION MCQs chapter no.4 9th class

 


data communication


                   DATA COMMUNICATION          CH# 04

Multiple Choice


Q. 1     Insert the correct option i.e. A/B/C/D in the empty box.

 i.      In which type of data transmission start / stop bits are used?
    A.     Synchronous transmission            B.  Asynchronous transmission
    C.      Satellite transmission                    D.  Microwave transmission

ii.    In which  the time interval between the characters is always the same?


                    A.     Synchronous transmission           B. Asynchronous transmission
    C.      Satellite transmission                     D.  Microwave transmission


 iii.    Which transmission media uses light waves for transmitting information?
                  A.     Coaxial cable                                   B.  Twisted pair cable
                  C.     Telephone line                                 D.  Fiber optic cable
 



 iv.     Which of the following is used for short distance communication?
                  A.      Radio Signal                                B.    Microwave
                  C.      Infra Red                                      D.      Satellite communication



  v.      In which of the following impairment, the strength of signals falls off with distance?
                  A.      Distortion                                      B.   Attenuation  
                  C.      Cross Talk                                     D.   Noise



 vi.      Which impairment refers to undesired signals that enter the path of the transmitted               signals due to electromagnetic radiation?
                   A.      Distortion                                      B.   Attenuation  
                  C.      Cross Talk                                     D.   Noise


 vii.     Which device is used for connecting computers together in wireless LAN?
                 A.       Dial-up Modem                             B. Router 
                 C.       Switch                                           D. Access point


 viii.     Which device is used for connecting computers together in wired LAN?
                 A.       Dial-up Modem                             B. Router 
                 C.       Switch                                           D. Access point


  ix.     Which device forwards information from one network to another by selecting                          the best pathway available?
                 A.       Dial-up Modem                             B. Router 
                 C.       Switch                                           D. Access point



x.       What represents the overall data transmission capacity of a computer network?
                 A.    Data rate                                          B.  Bandwidth     
                 C.    Signal strength                               D.     Baud rate                                             
        

➤➤➤➤➤➤➤➤➤➤➤
Fbise Notes-Computer | DATA COMMUNICATION MCQs chapter no.4 9th class Fbise Notes-Computer | DATA COMMUNICATION MCQs chapter no.4 9th class Reviewed by fbisenotes on July 30, 2019 Rating: 5

No comments:

Powered by Blogger.