Understanding the Network Layer

1. What is the primary function of the Network Layer in the OSI model?

• B. Determine paths and transfer packets between networks

• D. Establish and terminate connections between devices

• C. Route data based on application layer protocols

• A. Control the flow of data between applications

2. What is the main difference between forwarding and routing?

• Forwarding and routing are the same process

• Forwarding requires manual configuration, routing is automatic

• Forwarding is only used in local networks, routing is for the internet

• B. Forwarding processes packets at each router, routing determines end-to-end paths

3. What is the primary role of the Data Plane in a router?

• C. Transfer packets from input port to output port

• B. Store routing tables for quick access

• A. Encrypt data for secure transmission

• D. Analyze packet contents for security threats

4. Which protocol is commonly used for routing in the Internet?

• B. SMTP

• A. FTP

• D. SNMP

• C. IP

5. What does the term 'packet switching' refer to?

• D. Compressing data for faster transmission

• C. Encrypting data packets

• B. Dividing data into packets for transmission

• A. Sending data in a continuous stream

6. In which layer of the OSI model does the Network Layer reside?

• B. Layer 2

• A. Layer 1

• C. Layer 3

• D. Layer 4

7. What is the purpose of an IP address?

• A. To identify a device on a network

• To monitor internet speed

• To store user credentials

• To assign a domain name to a website

8. Which of the following is a characteristic of connectionless communication?

• B. Packet sequencing required

• C. No established connection

• D. Guaranteed delivery

• A. Connection-oriented communication

9. What is the role of a router in a network?

• E. To provide internet access to devices

• G. To monitor network traffic for performance

• F. To store data for backup purposes

• A. To connect different networks and route packets

10. What does 'MTU' stand for in networking?

• Minimum Transfer Unit

• Medium Transfer Unit

• A. Maximum Transmission Unit

• Maximum Transfer Usage