When purchasing a printer, you should factor in the cost of ink or toner

Which of the following number formats suppress leading zeros?

A) 0 B) & C) ^ D) #

Which method of transmission divides the stream of information into small bits and maps them to a spreading code?

a. Direct-sequence spread spectrum b. Frequency-hopping spread spectrum c. Carrier sense multiple access with collision detection d. Carrier sense multiple access with collision avoidance