Networking, Addressing, and Communication Lesson 009: Ports and Protocols Part 2

What does DNS stand for?

Domain Name System.

What port/s does DNS use?

Port 53.

What does DNS do?

Translates human-readable domain names into IP addresses.

What is the significance of DNS?

It is essential for accessing websites and other Internet-based resources.

What does DHCP stand for?

Dynamic Host Configuration Protocol.

Which port/s does DHCP use?

Ports 67 and 68.

What does DHCP do?

Automatically assigns IP addresses and other network settings.

What are other settings that DHCP manages?

Subnet mask, default gateway, and DNS and DNS server's IP.

What does HTTP stand for?

Hypertext Transfer Protocol.

Which port/s does HTTP use?

Port 80.

What does HTTP do?

Enables the transmission of web pages, without using encryption.

Why is the HTTP unsuitable for sensitive data?

Because it does not encrypt transmissions.

What is the significance of HTTP?

It's the foundation of the World Wide Web.

What protocol does most modern websites require the use of?

HTTPS.

Why is HTTPS preferred over HTTP?

It's a secure and encrypted version of it's legacy protocol.

What does POP3 stand for?

Post Office Protocol 3.

What port/s does POP3 use?

Port 110.

What does POP3 do?

Retrieves email from a server.

What is the functionality of POP3?

Downloading messages to the client and providing the option to delete or keep the copy of the message on the server.

IMAP is a legacy of POP3.

False.

What does IMAP stand for?

Internet Message Access Protocol.

What port/s does IMAP use?

Port 143.

What service does IMAP provide?

Advanced email retrivial.

What is the functionality of IMAP?

Allows users to manage messages directly on the server.

What makes IMAP useful today?

Keeps emails synchronized across multiple devices.

What functionality does IMAP has that POP3 doesn't

Email synchronization.