You need to provide connectivity between two buildings without running any cables. You decided to use two 802.11ac APs to provide wireless connectivity between the buildings. Which of the following is the BEST choice to support this need?
a. Use omnidirectional antennas on both APs.
b. Use wide channels.
c. Use the 2.4 GHz frequency band.
d. Use direction antennas on both APs.

The head restraint should be adjusted so that it reaches a. the top of your ears b. the base of your skull c. the top of the head

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.

What are three software programs for mobile computing?