Which technology uses a decentralized digital ledger? 👤 By The Quiz Wire Editorial Team 🌐 Source Emerging Technologies Knowledge Base ✅ Fact Checked 📊 Difficulty Medium 📅 Last Updated 01 Dec 2025 A. AR B. Blockchain C. Machine Learning D. Quantum Check Answer 💡 Explanation: Blockchain is the distributed ledger technology underpinning cryptocurrencies and secure records. 📚 Topics: Emerging Technologies Technology and Computing 🎯 Exams: CSS GEN PMS
