Interview Questions and Answers on Network Fundamentals
1. What is a computer network? Answer: A computer network is a collection of interconnected devices that can communicate and share resources. 2. What are the advantages of using a network? Answer: Advantages include resource sharing, data communication, centralized data management, and improved collaboration. 3. Explain the difference between a LAN and a WAN. Answer: LAN (Local Area Network) covers a small geographic area, while WAN (Wide Area Network) spans larger regions, often connecting multiple LANs. 4. What is a MAC address? Answer: A MAC (Media Access Control) address is a unique hardware address assigned to network interface cards (NICs) for device identification on a local network. 5. Describe the OSI model. Answer: The OSI (Open Systems Interconnection) model is a conceptual framework with seven layers that define network communication processes from physical transmission to application-level interactions. 6. What is TCP/IP, and why is it important? Answer: TCP/IP is a ...