The variable used to keep a running total in a loop is called a(n) __________.

What is the size of the wavelength used by 1000BaseLX fiber-optic cabling?

A. 5 km B. 1300 nm C. 850 D. 100 meters

Generally, mobile devices do not include a _______________ because they do not have a lot of services listening on open ports.

A. application menu B. firewall C. trusted source D. settings tab