6) Computer Networks (OSI, TCP/IP, Protocols)
📖 Theory – 6) Computer Networks (OSI, TCP/IP, Protocols)
I. Types of Networks
• LAN, WAN, PAN.
• Topologies: star, mesh, bus, ring.
II. Network Hardware
• Router, switch, hub, NIC, access point.
III. Protocols
• TCP/IP: core Internet protocol.
• HTTP/HTTPS, FTP, SMTP, POP, IMAP.
• IP addressing, DNS, MAC addresses.
IV. The OSI Model
• 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, Application.
V. Network Security
• Firewalls, encryption, authentication.
VI. The Internet
• How data is transmitted across the internet.
🏆 Level 1
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📝 Practice Questions (20)
Select the correct answer, then click "Submit" to see the result. If you get it wrong, an AI hint will be generated.
Question 1: Give an example of DNS.
Question 2: Give an example of Hub.
Question 3: What is IP address?
Question 4: How does Bandwidth work?
Question 5: What is Router?
Question 6: Give an example of Bandwidth.
Question 7: Define Network security.
Question 8: Why is Mesh topology important in computer science?
Question 9: Define MAC address.
Question 10: Why is Switch important in computer science?
Question 11: What is Switch?
Question 12: Why is SMTP important in computer science?
Question 13: How does OSI model work?
Question 14: Explain HTTP.
Question 15: Define Packet switching.
Question 16: Define FTP.
Question 17: Explain Mesh topology.
Question 18: Why is FTP important in computer science?
Question 19: Why is HTTP important in computer science?
Question 20: How does HTTP work?
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