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1st Semester
BT-205
Unit 4 Notes

BT-205 Basic Computer Engineering Unit 4 Notes

Notes and important questions for unit 4: Computer Networking and Security.

Unit 4 · Short notes Computer Networking and Security Computer networking basics: goals, ISO‑OSI model, layer functions, internetworking concepts, devices, TCP/IP model, Internet, World Wide Web, e‑commerce · Computer security basics: viruses, worms, malware, Trojans, spyware, anti‑spyware, common attacks (money laundering, information theft, cyber pornography, email spoofing, DoS, cyber stalking, logic bombs, hacking, spamming, defamation, pharming) · Security measures: firewalls, computer ethics, good practices, overview of cyber laws and internet fraud

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