Question

WHAT ARE THE KEY CONCEPTS YOU NEED TO KNOW ABOUT THE IT NETWORK ENGINEERING?

PLEASE GIVE THE CONCEPTS EXPLAINED

PLEASE GIVE SOME GOOD REFERENCES AND BOOKS TO LOOK INTO FOR THE

CompTIA CySA+ - CompTIA IT Certifications

IT FUNDEMENTALS - A+ - Network+ - Security+ , etc.

PLEASE GIVE THE BOOKS OR REFERENCES OR LINKS I COULD USE FOR THE GOOD REFERENCES FOR PREPARING AND STUDYING

Answer 1

An IT network engineer designs the computer networks that organizations rely on to access, share, and store information. Network engineers implement and maintain local area networks (LAN), wide area networks (WAN), the corporate intranet and Internet connections, and the virtual private network (VPN).

For key concepts https://www.webopedia.com/quick_ref/network-fundamentals-study-guide.html

If you are new to networking

Get a great foundation with the Data Communications and Networking (Forouzan) and Computer Networking: A Top-Down Approach (Kurose and Ross). A great complement to that is Computer Networks by Tanenbaum.

Then take a deep dive into the OSI layer-3 reading IP Routing Fundamentals (Sportack), followed by TCP/IP Illustrated (Richard Stevens)and move into Routing TCP/IP (Doyle Carrol) to master the theories behind.

When you are ready to get your first certification, gets your head down on the CCNA Routing and Switching Guide (Odom), and when you feel going above and beyond, it’s time for the CCIE Routing & Switching (Odom).