Protocols

Question 1

What are the email protocols and where are they located

Answer 1

SMTP
POP3
IMAP
Application layer

Question 2

Explain SMTP

Answer 2

Simple Mail Transfer Protocol
used when sending email through internet
‘push’ protocol
details format of messages, commands that email server should understand and respond to them

Question 3

Explain POP3

Answer 3

Post Office Protocol version 3
used to retrieve email through server
‘pull’ protocol
email downloaded to client computer, message in server deleted
emails only accessible from 1 client system

Question 4

Explain IMAP

Answer 4

Internet Message Access Protocol
used to retrieve email from server
‘pull’ protocol
emails not downloaded, stored in server until deleted by user
accessible from anywhere

Question 5

What are the Network protocols

Answer 5

Ethernet
Wi-Fi
HTTP
HTTPS
FTP
TCP
UDP
IP

Question 6

What is Ethernet

Answer 6

data link layer protocol
family of protocols used in wired LANs
covers physical and logical part of network

Question 7

What is Wi-Fi

Answer 7

Digital communication protocols that sets how data is transmitted on wireless LANs