What are the values of variables x, y, and z after the following code is run?
y = 0z = 0for x in range(5,7): if y > z: z, y = y, z y = y + x;

Contention sometimes results in ________, the corruption of network data caused when two computers transmit simultaneously.

a. collisions b. chipsets c. topologies d. terminators

A(n) _____ cover can cover the entire device or just the screen

Fill in the blank(s) with correct word