What do shuffling do?

718

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Explain the basic difference between traditional rdbms and hadoop?

699

---

Explain what if rack 2 and datanode fails?

678

---

Define a job tracker?

746

---

Explain the features of fully distributed mode?

674

---

What are the characteristics of hadoop framework?

705

---

Explain how can we change the split size if our commodity hardware has less storage space?

688

---

Explain how is hadoop different from other data processing tools?

770

---

Define a datanode?

694

---

Is secondary namenode a substitute to the namenode?

727

---

What is a secondary namenode?

677

---

What is unstructured data?

708

---

Explain the overview of hadoop history breifly?

658

---

How does yarn work with spark?

302

---

What happens when we submit a spark job?

326

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