Mention how hadoop is different from other data processing tools?

236

---

Mention what are the most common input formats defined in hadoop?

249

---

Mention what is rack awareness?

225

---

Mention what is the difference between an rdbms and hadoop?

239

---

Mention what are the three modes in which hadoop can be run?

234

---

Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?

409

---

Explain what is storage and compute nodes?

268

---

Explain how jobtracker schedules a task?

256

---

Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?

258

---

What happens in text format?

238

---

Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?

266

---

Explain what is a task tracker in hadoop?

223

---

Explain what is speculative execution?

219

---

Explain what happens in text format?

304

---

Mention what is distributed cache in hadoop?

233

---