What information is contained in the numbered RFCs maintained by the IETF?

What information is contained in the numbered RFCs maintained by the IETF?

• the rules for acceptable use of websites and e-mail
• the descriptions of various hardware components that connect to the Internet
• the specifications and rules for how devices communicate over an IP network
• the standards for cabling and wiring for local Ethernet networks

Exam with this question: CCNA Discovery 1: DHomeSB Chapter 10 Exam
Exam with this question: CCNA Discovery 2: DsmbISP Chapter 1 Exam