ISO model

Question 1

What is data networking?

Answer 1

A set of protocols for moving digital data from one place to another

Question 2

What does OSI stand for

Answer 2

Open systems Interconnect

Question 3

5 Layer OSI model

Answer 3

1. application Layer (Http/FTP)
2. Presentation Layer (ASCII, enocding)
3. Session Layer ()
4. Transport Layer (TCP/UDP)
5. Network Layer (IP addressing, IP Routing)
6. Data link Layer (Ethernet, docsis-3 )
7. physical Layer (cables: twisted Pair, coAX, fibre optics),( wireless connections)