SSCP Question #827: Real Exam Question with Answer & Explanation

The correct answer is C: It carries various sizes of packets. ATM uses fixed-size cells, not variable-size packets. Each ATM cell is exactly 53 bytes: a 5-byte header and a 48-byte payload. This fixed cell size is a defining characteristic of ATM that enables predictable, low-latency transmission. ATM is indeed capable of carrying voice, da

Submitted by ravi_2018· Apr 18, 2026Network and Communications Security

Question

Which of the following statements pertaining to Asynchronous Transfer Mode (ATM) is false?

Options

AIt can be used for voice
Bit can be used for data
CIt carries various sizes of packets
DIt can be used for video

Explanation

ATM uses fixed-size cells, not variable-size packets. Each ATM cell is exactly 53 bytes: a 5-byte header and a 48-byte payload. This fixed cell size is a defining characteristic of ATM that enables predictable, low-latency transmission. ATM is indeed capable of carrying voice, data, and video traffic (it is a multi-service technology), making statements A, B, and D all true. Statement C is false because ATM does not carry various sizes of packets.

Topics

#ATM#Networking Protocols#Data Transfer#Network Technologies

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