A footnote is a reference that is placed at the end of a document or chapter

In contrast to earlier Wi-Fi speeds, which of the following BEST describes the antenna and channelization properties used in 802.11n?

A. MIMO, DSSS B. MIMO, OFDM C. CSMA, DSSS D. CSMA, CDMA

A function that performs a single operation is said to be:

a. focused b. cohesive c. poor programming style d. a waste of resources e. flexible