Kindly check through these network FAQ, it will help you to understand networking concept better.
Question: What are the common transmission rates for Ethernet?
Question: What is the difference between half and full duplex mode in Ethernet?
Question: What are the transmission speed for Cat 5, Cat 5e, Cat 6 network cable?
Question: What is the maximum connection length for Cat 5, Cat 5e, Cat 6 network cable?
Question: What is the difference between router, hub and switch?
Question: What is dual WAN router?
Question: What is TCP/IP?
Questions: Why do we need to configure LAN and WAN (Internet) IP settings on home router?
Question: How to find default router password?
Question: What to do if you forgot router password?
Question: What is loopback IP address?
Question: What is localhost?
Question: What is 127.0.0.1 IP address?
Question: What is 192.168.1.1 IP address?
Question: What is 192.168.0.1 IP address?
Question: What is 192.168.0.50 IP address?
Question: What is 192.168.2.1 IP address?
Question: What is 10.1.1.1 IP address?
Question: Why IP address is important in networking?
Question: What is MAC Address?
Question: What is the usage of ipconfig command?
Question: How to solve limited or no connectivity problem?
Question: Why I can't access websites?
Question: What is the difference between IPv4 and IPv6?
Question: What is IP routing?
Question: What is routing table?
Question: What is NAT (Network Address Translation)?
Question: How to connect 2 computers directly without router/switch?
Question: How does proxy server work?
Question: What is client/server networking?
Questions: What is Wake-on-LAN (WOL)?
Question: What is QoS (Quality of Service)?
Question: What is protocol?
Question: What is port?
Question: What is the usage of TCP (Transmission Control Protocol)?
Question: What is the usage of UDP (User Datagram Protocol)?
Questions: What does FTP stand for?
Question: What is collision and how to solve it?
Question: Why do we need DNS (Domain Name Server)?
Question: What is the difference between forward and reverse DNS lookup?
Question: What is Dynamic DNS (DDNS)?
Question: What is the difference between Cable and DSL Internet connection?
Question: Should I use bridge mode or routing mode on DSL or Cable modem?
Questions: What is auto MDI/MDIX?
Question: What is the difference between VPN and VPN pass-through feature on router?
Question: What is peer-to-peer file sharing?
Question: What is Voice over IP (VoIP)?
Question: What is Power over Ethernet (PoE)?
Question: What is encryption?
Questions: How to access company servers by using VPN connection and keep home network access at the same time?