Q. What is the primary function of the Hadoop MapReduce "Map-side Join" technique? (A) Join data on the mapper side (B) Join data on the reducer side (C) Sort keys on the mapper side (D) Sort keys on the reducer side 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) Join data on the mapper side