What is the primary responsibility of the physical layer in data communication?

Who needs to approve a change before it is initiated? (select two.) -change board -client or end user -ceo -personnel manager -project manager

This chapter lists many ways in which becoming computer literate is beneficial. think about what your life will be like once you’re started in your career. what areas of computing will be most important for you to understand? how would an understanding of computer hardware and software you in working from home, working with groups in other countries and contributing your talents.

Idon’t understand the double8 coding problem. it is java