What are RFCs

 What are RFCs

A RFC (Request for Comments) is a pure technical document published by the Internet Engineering Task Force (IETF). Request for Comments (RFCs) are mainly used to develop a "standard" network protocol, a function of a network protocol or any feature which is related with network communication.


Some RFCs are informational and others are published Internet standards. The final version of the RFC becomes the standard and is published with a number. No further comments or changes are permitted for the final version. Changes are permitted only via subsequent RFCs that supersede the previous RFCs.


At the early stages of network communication, each vendor had their own proprietary network communication protocols. Different network protocols for the same purpose were a serious problem in heterogeneous network environments, consisting of devices and Operating Systems from different vendors.


"Standard" network protocols are not considered as proprietary. Any vendor can develop application software or drivers based on defined RFC standard. Hence RFC provides a strong base for cross platform network communication.


All the standard network protocols (like, HTTP, FTP, SMTP, TCP, UDP, IP etc) are defined as RFCs. Individuals may join the IETF working groups to help draft and develop networking standards or network protocols.

More than 7000 RFCs are available now.


Chapter 1 :- Introduction to Computer Networking

Chapter 2 :- What is a Computer Network

Chapter 3 :- Why we need computer networks 

Chapter 4 :- Client Operating Systems

Chapter 5 :- Common Network Application Software 

Chapter 6 :- LAN and WAN

Chapter 7 :- CAN and MAN 

Chapter 8 :- Peer-to-Peer networks and Client-Server networks

Chapter 9 :- Centralized and Distributed Computer Networks

Chapter 10 :- Internetworks, Internet, Intranet and Extranet

Chapter 11 :- What is a Network Protocol

Chapter 12 :- Difference between Proprietary and Standard Protocols

Chapter 13 :- What are RFCs

Chapter 14 :- Organizations which control Internet 

Chapter 15 :- Bus Topology

Chapter 16 :- Star Topology 

Chapter 17 :- Mesh, Ring and Hybrid Topologies

Chapter 18 :- Network Infrastructure Devices and Icons 

Chapter 19 :- Network Hub

Chapter 20 :- Network Bridge

Chapter 21 :- What is a Router 

Chapter 21 :- What is a Firewall

Chapter 22 :- Office Networks 

Chapter 23 :- Hub-and-spoke WAN topology

Chapter 24 :- Partial-Mesh WAN topology

Chapter 25 :- Full-mesh Site-to-site WAN topology 

Chapter 26 :- What is NIC 

Chapter 27 :- Common Network Cable types

Chapter 28 :- Difference between Baseband and Broadband

Chapter 29 :- CSMA/CD, CSMA/CA and Token Passing

Chapter 30 :- LAN Technologies Ethernet 

Chapter 31 :- Ethernet Media Standards 

Chapter 32 :- What is Token Ring 

Chapter 33 :- What is FDDI

Chapter 34 :- IEEE 802 Standards 

Networking Interview Questions :- 1

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Networking Interview Questions :- 3

Networking Interview Questions :- 4

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