OSI Model

Question 1

The OSI Model

Answer 1

Layer 7- Application
Layer 6- Presentation
Layer 5- Session
Layer 4- Transport
Layer 3- Network
Layer 2- Data Link
Layer 1- Physical

Question 2

Layer 7

Answer 2

Application Layer

Question 3

Layer 6

Answer 3

Presentation Layer

Question 4

Layer 5

Answer 4

Session Layer

Question 5

Layer 4

Answer 5

Transport Layer

Question 6

Layer 3

Answer 6

Network Layer

Question 7

Layer 2

Answer 7

Data Link Layer

Question 8

Layer 1

Answer 8

Physical Layer

Question 9

Physical Layer

Answer 9

Layer 1
Converts binary data into signals and transmits over cable

Question 10

Data Link Layer

Answer 10

Layer 2
Focuses on physical addressing; adds in MAC address of the receiving endpoint
Checks received data to ensure it wasn’t corrupted in transit

Question 11

Network Layer

Answer 11

Layer 3
Responsible for locating the destination of your request, uses logical addressing (IP addresses)

Question 12

Transport Layer

Answer 12

Layer 4
Selects the protocol to send the data over (TCP or UDP) then divides it into segments or datagrams for transmission

Question 13

Session Layer

Answer 13

Layer 5
Creates and maintains separate sessions between other computers

Question 14

Presentation Layer

Answer 14

Layer 6
Translates the data into a standardized format, as well as handling any encryption, compression or other transformations to the data

Question 15

Application Layer

Answer 15

Layer 7
Provides networking options to programs running on a computer

Question 16

In the Transport Layer, encapsulated data is referred to as ____

Answer 16

Segments or Datagrams depending on whether TCP or UDP is being used

Question 17

At the Network Layer, encapsulated data is referred to as ___

Answer 17

Packets

Question 18

At the Data Link Layer, encapsulated data is referred to as ___

Answer 18

Frames

Question 19

What Layer is the only one to add a trailer in addition to a header?

Answer 19

Data Link