Contents

Which of the following organization is responsible for defining standards for telephone and telegraph?
a) CCIT                                
b) IEEE
c) ISO                                    
d) none of these


a

Explanation: CCIT stand for consultative committee on international telegraph and telephone


what does ITU stand for?
a) 
International telecommunication union
b) inter telecommunication unit
c) inter telegraph unit         
d) inter telegraph union


a

Which of the following organization is a responsible defining data communication protocol?
a) CCIT                                
b) IEEE
c) ISO                                    
d) none of these

b

Explanation: Institute of electrical and electronics engineers



Which of the following protocol is used for Ethernet?
a) IEEE 802.3                    
b) IEEE 802.4
c) IEEE 802.5                      
d) none of these


a

Which of the following protocol is used for Token bus?
a) IEEE 802.3                     
b) IEEE 802.4
c) IEEE 802.5                      
d) none of these


b

Which of the following protocol is used for Token Ring?
a) IEEE 802.3                     
b) IEEE 802.4
c) IEEE 802.5                     
d) none of these


c