Networking

CL1 (Qualified)
Understanding networks: layers and protocols

Basic understanding of TCP/IP model and protocols

Defining internet, intranet and VPN

Basics of Firewalls and DMZ

Application layer protocols basics (HTTP, FTP, Telnet)

Understanding HTTP and WWW

Basic troubleshooting tools (ICMP, ping, traceroute)

Client/Server model

Sockets, IP and port addressing

Using proxy server

File transfer services: FTP, TFTP

Name resolution services: DNS, whois

Remote access services: Telnet, SSH, rdesktop, VNC