Asynchronous Communication transfers data by sending:

A.
bits of data sequentially

B.
bits of data sequentially in irregular timing patterns

C.
bits of data in sync with a heartbeat or clock

D.
bits of data simultaneously

Explanation:
Asynchronous communication is the transmission sequencing technology that uses start and stop bits or similar
encoding mechanism. Used in environments that transmits a variable amount of data in a periodic fashion.Incorrect Answers:
A: Both asynchronous and synchronous communication sends bits of data sequentially.
C: Data bits transferred in sync with a heartbeat or clock is called synchronous communication.
D: Asynchronous Communication transfers one bit at a time, not multiple bits of data simultaneously.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 566