1. Which of the following is most responsible for the use of the hexagonal (six-sided) cell design of cellular coverage maps? cell phone transmission power the public switched telephone network (PSTN) the Internet smartphone usage rates 2. Which of the following was created to solve frequency interference problems with early cellular coverage map design? locating macro cells and micro cells next to each other segmenting frequency use locating macro cells and pico cells next to each other combining frequencies from adjacent cells