Networks 10- Protocols (HTTPS ETC..)

Question 1

What is the role of the HTTP protocol?

Answer 1

Hyper text transfer protocol- used by Web browsers Enabling communication between web servers and clients, so web pages and resources like images and videos can be retrieved from the internet

Question 2

What is the role of the FTP protocol?

Answer 2

File transfer protocol- access, edit and move files between devices on a network

Enabling secure file transfer between computers on a network, so users can upload and download files securely and efficiently

Question 3

SMTP

Answer 3

SMTP

A
Simple mail transfer protocol-used to send emails, also used to transfer emails between servers.

Question 4

What is the role of the TCP/IP protocol?

Answer 4

Transport layer protocols which control the packaging and unpackaging of data.
Splits data into packets.

TCP- numbered packets

Specifying how data is formatted, addressed, transmitted, routed, and received, so data can travel smoothly and reliably across interconnected networks, which are multiple networks connected to each other

Question 5

What is the role of the DHCP protocol?

Answer 5

Automating the assignment of IP addresses and network setup for devices in a network, simplifying administration by managing the lease periods of the IP addresses to minimise IP conflicts.

Question 6

What is the role of the DNS protocol?

Answer 6

Translating domain names into IP addresses, so users can access websites and services using more user-friendly names instead of numerical IP addresses

Question 7

What is the role of the NTP protocol?

Answer 7

Synchronising timekeeping among computers on a network, ensuring they all have the same accurate time for tasks like logging, authentication, and coordination of events

Question 8

What is the role of the HTTPS protocol?

Answer 8

Https-more secured version of HTTP, encrypts all information sent and recieved, ensuring confidentiality and data integrity.

Question 9

What is the role of the POP3 protocol?

Answer 9

Retrieving emails from a mail server to a user’s device, so they can access and manage their emails using preferred software, like Gmail, while leaving copies on the server or deleting them based on how they customise their settings

Question 10

What is the role of the IMAP4 protocol?

Answer 10

Keeping all email-related actions, like reading, replying, or deleting messages, synchronized across different devices, so users can have a consistent email experience regardless of the device they use to access their emails