OSI Model

Question 1

What is layer 7, and what does it do?

Answer 1

Application - what the end user sees and uses

Question 2

What is layer 6, and what does it do?

Answer 2

Presentation - this layer decides how data is represented, and also manages encryption

Question 3

What is layer 5, and what does it do?

Answer 3

Session - this layer manages interhost communication

Question 4

What is layer 4, and what does it do?

Answer 4

Transport - this layer manages end-to-end connectivity and reliability

Question 5

What is layer 3, and what does it do?

Answer 5

Network - this layer manages path determination and logical addressing

Question 6

What is layer 2, and what does it do?

Answer 6

Data-link - this layer manages physical addressing

Question 7

What is layer 1, and what does it do?

Answer 7

Physical - this layer manages media, signal, and binary transmission

Question 8

Name some protocols typical of layer 7

Answer 8

FTP, HTTP, SSH, DNS, SMTP

Question 9

Name some protocols typical of layer 6

Answer 9

SSL, SSH, FTP, JPEG, MPEG, MIDI

Question 10

Name some protocols typical of layer 5

Answer 10

APIs, sockets

Question 11

Name some protocols typical of layer 4

Answer 11

TCP, UDP

Question 12

Name some protocols typical of layer 3

Answer 12

IP, ICMP, IPSec

Question 13

Name some protocols typical of layer 2

Answer 13

ARP, MPLS, HPDC, Frame RElay, CDP

Question 14

Name some protocols typical of layer 1

Answer 14

Ethernet, Bluetooth, DSL, WiFi, 802.11x

Question 15

What type of data is sent at layer 1?

Answer 15

Bits

Question 16

What type of data is sent at layer 2?

Answer 16

Frame

Question 17

What type of data is sent at layer 3?

Answer 17

Packet

Question 18

What type of data is sent at layer 4?

Answer 18

Segment

Question 19

What type of data is sent at layer 5?

Answer 19

Data

Question 20

What type of data is sent at layer 6?

Answer 20

Data

Question 21

What type of data is sent at layer 7?

Answer 21

Data

Question 22

Which layer manages what the end user sees and experiences?

Answer 22

7 - Application

Question 23

Which layer manages data representation and encryption?

Answer 23

6 - Presentation

Question 24

Which layer manages interhost communication?

Answer 24

5 - Session

Question 25

Which layer manages end-to-end connection and reliability?

Answer 25

4 - Transport

Question 26

Which layer manages path determination and logical addressing?

Answer 26

3 - Network

Question 27

Which layer manages physical addressing?

Answer 27

2 - Data-link

Question 28

Which layer manages media, signal and binary transmission?

Answer 28

1 - Physical

Question 29

FTP, HTTP, SSH, DNS, SMTP. Which layer?

Answer 29

7 - Application

Question 30

SSL, SSH, FTP, JPEG, MPEG, MIDI. Which layer?

Answer 30

6 - Presentation

Question 31

APIs, Sockets. Which layer?

Answer 31

5 - Session

Question 32

TCP, UDP. Which layer?

Answer 32

4 - Transport

Question 33

IP, ICMP, IPSec. Which layer?

Answer 33

3 - Network

Question 34

ARP, MPLS, HPDC, Frame Relay, CDP. Which layer?

Answer 34

2 - Data-link

Question 35

Ethernet, Bluetooth, DSL, WIFi, 802.11x. Which layer?

Answer 35

1 - Physical