Multiple choice

What does the acronym ISDN stand for?

  1. Indian Standard Digital Network

  2. Integrated Services Digital Network

  3. Intelligent Services Digital Network

  4. Integrated Services Data Network
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

ISDN stands for Integrated Services Digital Network. It is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.

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