OSI Reference Model And TCP/IP Stack

Question 0

What are the 4 layers of the TCP/IP Stack?

Answer 0

Application, Transport, Internet, Network Interface

Question 1

What are the 7 layers of the OSI Reference Model from top to bottom?

Answer 1

Application, Presentation, Session, Transport, Network, Data Link, Physical

Question 2

To what level(s) of the OSI Reference Model does the Application layer of the TCP/IP Stack correspond? Why is this the case?

Answer 2

Application, Presentation and Session. Software performs the functions of the Application, Presentation and Session layers - this was the case already at the advent of TCP/IP.

Question 3

On which layer of the OSI model does HTTP function?

Answer 3

Application layer

Question 4

On which layer of the OSI model does TCP function?

Answer 4

Transport layer

Question 5

On which layer of the OSI model does UDP function?

Answer 5

Transport layer

Question 6

On which layer of the OSI model does SNMP function?

Answer 6

Application layer

Question 7

Name two Application Layer protocols that web browsers use.

Answer 7

HTTP and HTTPS

Question 8

Name the three common Application Layer protocols used by e-mail clients.

Answer 8

• Simple Mail Transfer Protocol (SMTP)
• Post Office Protocol 3 (POP3)
• Internet Message Access Protocol (IMAP)