ATM

Question 1
Which of the following is widely used inside the telephone system for long-haul data traffic ?
A
ISDN
B
ATM
C
Frame Relay
D
ISTN
       Computer-Networks       ATM       UGC NET CS 2013 Dec-paper-2
Question 1 Explanation: 
→ ATM for carriage of a complete range of user traffic, including voice, data, and video signals.
→ ATM provides functionality that is similar to both circuit switching and packet switching networks.
→ ATM uses asynchronous time-division multiplexing, and encodes data into small, fixed-sized packets (ISO-OSI frames) called cells.
→ ATM uses a connection-oriented model in which a virtual circuit must be established between two endpoints before the actual data exchange begins.
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