OSI Model

Question 1

What is layer 1?

Answer 1

Physical Layer

Question 2

What is layer 2?

Answer 2

Data Link

Question 3

What is layer 3?

Answer 3

Network

Question 4

What is layer 4?

Answer 4

Transport

Question 5

What is layer 5?

Answer 5

Session

Question 6

What is layer 6?

Answer 6

Presentation

Question 7

What is layer 7?

Answer 7

Application

Question 8

Layer 4 Protocols?

Answer 8

TCP & UDP

Question 9

The NIC operates at which layer of the OSI model?

Answer 9

Physical Layer

Question 10

HTTP (s) functions at which layer of the OSI model?

Answer 10

Application Layer

Question 11

TCP & UDP operate at which layer of the OSI model?

Answer 11

Transport Layer

Question 12

IP, ICMP, IPsec & ARP operate at which layer of the OSI model?

Answer 12

Network Layer

Question 13

Routers operate at which layer of the OSI model?

Answer 13

Network Layer

Question 14

Bits are packaged into frames at which layer of the OSI model?

Answer 14

Data Link layer

Question 15

MIDI and JPEG operate at which layer?

Answer 15

Presentation Layer

Question 16

Encryption takes place at which layer?

Answer 16

Presentation Layer

Question 17

What is the data unit for the Physical Layer?

Answer 17

Bits

Question 18

What is the data unit for the Data - Link Layer?

Answer 18

Frame

Question 19

What is the data unit for the Network Layer?

Answer 19

Packet

Question 20

What is the data unit for the Transport Layer?

Answer 20

TCP/UDP

Question 21

what is the data unit for Session / Presentation / Application?

Answer 21

Message

Question 22

Layer 4 & 5 network devices?

Answer 22

Firewalls