Free NE Network Fundamentals Questions and Answers — Questions and Answers
Question 1: What is the main purpose of a network?
- To connect devices to the internet
- To facilitate the sharing of resources and information (Correct answer)
- To monitor the performance of computers
- To ensure the security of data on a computer
Correct answer: To facilitate the sharing of resources and information
A network allows multiple devices to communicate and share resources such as files, printers, and internet connections.
Question 2: Which layer of the OSI model is responsible for end-to-end communication and error checking?
- Application Layer
- Transport Layer (Correct answer)
- Network Layer
- Data Link Layer
Correct answer: Transport Layer
The Transport Layer (Layer 4) ensures reliable data transfer between end systems by handling error checking, data flow control, and re-transmission of lost packets.
Question 3: What is the role of the Network Layer in the OSI model?
- To provide encryption and security
- To manage the routing of data packets between devices (Correct answer)
- To control the physical connection between devices
- To handle error detection and correction
Correct answer: To manage the routing of data packets between devices
The Network Layer (Layer 3) is responsible for determining the best path for data to travel from the source to the destination across different networks.
Question 4: Which device operates at the Data Link Layer and is used to connect devices within a Local Area Network (LAN)?
- Router
- Switch (Correct answer)
- Modem
- Firewall
Correct answer: Switch
A switch operates at the Data Link Layer (Layer 2) and is used to connect devices within the same network, forwarding data to the correct device based on MAC addresses.
Question 5: What does the acronym "LAN" stand for?
- Large Area Network
- Local Area Network (Correct answer)
- Logical Access Network
- Long Area Network
Correct answer: Local Area Network
A Local Area Network (LAN) is a network that connects devices within a limited geographic area, such as a home, office, or building.
Free NE Network Fundamentals Questions and Answers
What is the main purpose of a network?