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Showing posts from December, 2025

Artificial intelligence (AI)

 Artificial intelligence (AI) AI, or artificial intelligence, is like giving a machine a “thinking cap.” It’s the technology that allows machines to mimic human intelligence and perform tasks such as learning, reasoning, problem-solving, and even creativity. It powers everything from voice assistants like Siri, to self-driving cars, to personalized recommendations on streaming platforms. AI works through algorithms and models that process vast amounts of data and make decisions or predictions based on it. Gemini and Copilot are both AI-powered tools, but they serve slightly different purposes: Gemini : Developed by Google, Gemini is a multimodal AI that integrates deeply with Google Workspace tools like Docs, Sheets, and Gmail. It's great for creative tasks, multimedia capabilities, and general consumer applications. Copilot : Created by Microsoft, Copilot is optimized for productivity within the Microsoft ecosystem, including Word, Excel, Teams, and Outlook. It excels at workplace...

C programming language

Interview questions -2

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Networking (25 Questions) 1. Difference between a hub, switch, and router: → Hub broadcasts data to all ports; switch forwards data to specific MAC addresses; router connects different networks. 2. Explain the OSI model and its layers: → Seven layers — Physical, Data Link, Network, Transport, Session, Presentation, Application. 3. Difference between TCP and UDP: → TCP is connection‑oriented and reliable; UDP is connectionless and faster. 4. Define IP address classes: → Class A (1–126), B (128–191), C (192–223), D (224–239 multicast), E (240–255 experimental). 5. What is subnetting and why is it used? → Divides networks into smaller subnets for efficient IP management and security. 6. Explain DHCP and its purpose: → Automatically assigns IP addresses to devices on a network. 7. What is DNS and how does it work? → Translates domain names into IP addresses using hierarchical name servers. 8. Difference between public and private IP addresses: → Public IPs are globa...