What do shuffling do?

668

---

Explain the basic difference between traditional rdbms and hadoop?

649

---

Explain what if rack 2 and datanode fails?

633

---

Define a job tracker?

697

---

Explain the features of fully distributed mode?

623

---

What are the characteristics of hadoop framework?

664

---

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

645

---

Explain how is hadoop different from other data processing tools?

724

---

Define a datanode?

637

---

Is secondary namenode a substitute to the namenode?

678

---

What is a secondary namenode?

626

---

What is unstructured data?

653

---

Explain the overview of hadoop history breifly?

620

---

How does yarn work with spark?

285

---

What happens when we submit a spark job?

311

---