UGC NET CSE | December 2008 | Part 2 | Question: 7

Question

The $ATM$ cell is:

• A. $48$ bytes long          
• B. $53$ bytes long
• C. $64$ bytes long        
• D. $69$ bytes long

Comments

The ATM cell is:

(B) 53 bytes long

Answer 1

An ATM cell consists of a 5-byte header and a 48-byte payload. i.e. 53 bytes

ATM defines two different cell formats: User–network interface (UNI) and Network-to-network interface (NNI). Most ATM links use UNI cell format.

Ans: B

ref: https://en.wikipedia.org/wiki/Asynchronous_Transfer_Mode