057. OCR A Level (H046-H446) SLR11 – 1.3 Network characteristics & protocols

About this video

OCR Specification Reference
AS Level 1.3.2a
A Level 1.3.3a

This video looks at the main characteristics of networks and the discusses the importance or protocols and standards.

Key question:

- What are the features of a protocol, and what do we mean by a standard?

00:00 Network characteristics and protocols
00:08 Intro
00:13 What is a network?
00:49 Advantages and disadvantages of networks
01:39 The need for standards
02:16 Standards in use - Character sets
02:34 Standards in use - Web pages and HTML
02:46 What is a protocol?
03:16 Common protocols
04:09 TCP/IP and UDP
04:59 HTTP/HTTPS
05:37 FTP
06:06 POP/IMAP/SMTP
07:10 Key question
07:22 Outro

Last updated: 20.05.26

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