How many pairs are crossed in a crossover cable?

What type of CPU cooling uses some type of pump?

A) Liquid and phase-change B) Thermal compound and thermal coupled C) Induction and rotary fan D) Auxiliary fan and thermal inductor

A pipeline of operations is

A) a sequence of operations where the output of each operation becomes the input into the next B) a sequence of operations where each operation is a subclass of the previous C) a concatenation of I/O streams that lets data from one stream to the next D) None of the above