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Question

What is the full form of STD?


A
Subscribed Trunk Dialling
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B
Subscriber Trunk Dialling
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C
Subscription Trunk Dialling
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D
Subsidised Trunk Dialling
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Solution

The correct option is B Subscriber Trunk Dialling
The telecommunication sector in India has evolved at a rapid pace in recent times. Before the mobile revolution, India had one of the largest telecom networks in Asia - more than two-thirds of the villages had already been covered under Subscriber Trunk Dialling (STD) telephone facility. 

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