1. ISDN stands for ________
Correct Answer is : Integrated Services Digital Network
2. ISDN is based on the concept of _______
3. Signalling component that supports traffic between the end-user and network is called ________
Correct Answer is : Access signalling
4. Information bearing channels in ISDN are called ______
Correct Answer is : B channels
5. Which of the following is based on ATM technology?
Correct Answer is : B-ISDN