Question

The header in ATM cell is ...........byte long.

• A. $2$
• B. $4$
• C. $5$
• D. $8$

Answer 1

Answer: (C)

$5$

The header in ATM cell is 5 bytes long.

The first 5 bytes contain cell-header information.

ATM (asynchronous transfer mode):-

Asynchronous transfer mode (ATM) is a switching technique used by telecommunication networks that uses asynchronous time-division multiplexing to encode data into small, fixed-sized cells. This is different from Ethernet or internet, which use variable packet sizes for data or frames.