Lesson 3: Transport Layer & Network Applications

Question 2

2 Things

What does the transport layer do?

Answer 2

Handles transportation issues
Ensures data transport reliability

Question 3

What does the transport layer do for virtual circuits?

Answer 3

Establish, Maintain & Terminate

Question 4

What does UDP stand for?

Answer 4

User Datagram Protocol

Question 5

What does TCP stand for?

Answer 5

Transmission Control Protocol

Question 6

What are the Transport protocols?

Answer 6

TCP & UDP

Question 7

Summarise TCP

Answer 7

Connection Oriented
Handshacking

Flow & Congestion Control

Question 8

Summarise UDP

Answer 8

Best Effort Connectionless Protocol
May end up lost/OOO

Question 9

What does ephemeral mean?

Answer 9

Short lasting

Question 10

What’s a handshake?

Answer 10

Get sender/receiver signals before data exchange

Question 11

What does the Session layer do?

Answer 11

Creates & Maintains dialogue between source & destination applications

Question 12

What does the Presentation Layer do?

Answer 12

Format, compress, encrypt data

Question 13

What does HTTPS do?

Answer 13

Transfer pages from servers to browsers

Question 14

What protocols are used for emailing?

Answer 14

SMTP, POP, IMAP

Question 15

What protocols are used for IP addressing?

Answer 15

DNS & DHCP