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.
ANSWER: b
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