What do you mean by RFC? Explain its significance

Requests for Comments (RFCs) The standards for TCP/IP are published in a series of documents called Requests for Comments (RFCs). RFCs describe the internal workings of the Internet. TCP/IP standards are always published as RFCs, although not all RFCs specify standards. Some RFCs provide informational, experimental, or historical information only. An RFC begins as an Internet draft, which is typically developed by one or more authors in an IETF working group. An IETF working group is a group of individuals that has a specific charter for an area of technology in the TCP/IP protocol suite.