____ are like transparent sheets of plastic that are stacked on top of each other.

Which of the following uses types and codes rather than ports?

A. EIGRP B. ICMP C. UDP D. IPv6

Answer the following statements true (T) or false (F)

1. Microprogramming eases the task of designing and implementing the control unit and provides support for the family concept. 2. Pipelining is a means of introducing parallelism into the essentially sequential nature of a machine-instruction program. 3. The major cost in the life cycle of a system is hardware. 4. It is common for programs, both system and application, to continue to exhibit new bugs after years of operation. 5. Procedure calls and returns are not important aspects of HLL programs.