The OSI Model

Question 1

Layer 7 - Application

Answer 1

Users interact directly with applications that operate at 7 (ex: web browsers, such as Google chrome, Firefox and Safari & other applications such as SSH and FTP

Question 2

Layer 6 - Presentation

Answer 2

The presentation layer prepares or translates data from application format to network format & vice versa ex: encryption and decryption process

Question 3

Layer 5: Session

Answer 3

The session layer is responsible for creating a session between two devices. It is also responsible for session checkpoints and recovery

Question 4

Layer 4: Transport

Answer 4

The transport layer handles coordination of data transfer between end systems and hosts, including much data to send, at what rate, destination, etc. Data in this layer is organized into segments

Question 5

Layer 3: Network

Answer 5

The network layer organizes data into packets called datagrams that contain logical source and destination addresses. Routers operate in this layer. This network layer’s job is to allow hosts to send packets across multiple paths to any other network and deliver them to their destinations, via routers operating on this layer

Question 6

Layer 2: Data Link

Answer 6

The data link layer provides node-to-node data transfer (between two directly connected) and can provide the means to detect errors taht may occur in the physical layer. Switches operate in this layer. Data in this layer is organized into frames

Question 7

Layer 1: Physical

Answer 7

The physical layer defines the details of how data is physically sent through the network. This layer determines how bits are electrically or optically transferred by hardware devices that interface directly with a network medium, such as coaxial cable, optical fiber or twisted paid cooper wire. hubs operate in this layer

Question 8

Memory slogan

Hint: Pizza

Answer 8

Please Do Not Throw Sausage Pizza Away