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Analog signal is measured in…….
a) volt   
b) hertz 
c) digits
d) watts


a

How many types of data transmission?
a) one    
b) two    
c) three
d) four

b

 digital data transmission, analog data transmission



Sound, light, and radio waves are examples of……
a) digital signal    
b) analog signal
c) simple signal    
d) none of these

b

Which of the following are characteristics of analog signal?
a) frequency                        
b) amplitude
c) both a & b                       
d) none of these



c

How many types of data transmission?
a) one    
b) two    
c) three 
d) four

b

asynchronous transmission, synchronous data transmission



Which of the following transmission data is transmitted character by character?
a) asynchronous transmission
b) synchronous transmission
c) digital data transmission               
d) analog transmission


a