For each service call the technician should be equipped with

Which of the following is the Physical-layer address that is an integral part of a network interface card?

A. MAC address B. Layer 3 address C. Network address D. logical address

In a technique called _____, the programmer simulates each program outcome or result and displays a message to indicate whether or not the program executed successfully.

A. modular testing B. stub testing C. acceptance testing D. unit testing