Which statement regarding the Asynchronous Transfer Mode (ATM) technology is accurate?
A) In ATM, a message is called a frame and always consists of 1500 bytes of data.
B) ATM can provide 4 levels of QoS, from best effort delivery to guaranteed, real-time transmission.
C) ATM is highly dependent on predetermined schemes that specify the timing of data transmissions.
D) ATM is a point-to-multipoint WAN access technology that uses packet switching.

Question

Quizplus · Accepted Answer

Option A is not accurate because a message is called a cell and always consists of 53 bytes of data. Option C is not accurate because ATM is designed to be versatile, hence it does not depend on predetermined schemes for timing. Option D is not accurate because ATM is a point-to-point WAN access technology that uses circuit switching. However, option B is correct because ATM can provide up to 4 levels of QoS, ranging from best effort delivery (UBR) to guaranteed, real-time transmission (CBR).

Which Statement Regarding the Asynchronous Transfer Mode (ATM) Technology Is