Mention what is data cleansing?

431

---

What is a udf?

448

---

What is a record reader?

403

---

List out the different stream grouping in apache storm?

383

---

List out the some common problems faced by data analyst?

410

---

Why cloudera is used?

476

---

What are the benefits yarn brings in to hadoop?

415

---

Define “speculative execution” in hadoop?

424

---

What are the port numbers of job tracker?

523

---

Explain the key benefits of using storm for real time processing?

429

---

What is the logistic regression?

433

---

Define data cleansing?

398

---

What are the port numbers of namenode?

421

---

How can we create a hadoop cluster from scratch?

421

---

What are the port numbers of task tracker?

462

---