Azure Engineer Interview Questions and Answers

A hub broadcasts data to all connected devices, while a switch only sends data to the intended recipient.

• A hub operates at the physical layer of the OSI model, while a switch operates at the data link layer.

• A hub is less secure than a switch, as it broadcasts data to all connected devices.

• A switch can improve network performance by reducing network congestion.

• Example of a hub: Ethernet hub. Example of a switch: Ethernet switch.

The OSI model has 7 layers that define how data is transmitted over a network.

• Layer 1: Physical layer - deals with the physical aspects of transmitting data

• Layer 2: Data link layer - responsible for error-free transfer of data between nodes

• Layer 3: Network layer - manages the routing of data between nodes

• Layer 4: Transport layer - ensures reliable data transfer between applications

• Layer 5: Session layer - establishes and manages connections between applications

• Layer 6: Presen...read more