Mention what is data cleansing?

491

---

What is a udf?

501

---

What is a record reader?

454

---

List out the different stream grouping in apache storm?

430

---

List out the some common problems faced by data analyst?

468

---

Why cloudera is used?

518

---

What are the benefits yarn brings in to hadoop?

469

---

Define “speculative execution” in hadoop?

479

---

What are the port numbers of job tracker?

558

---

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

467

---

What is the logistic regression?

482

---

Define data cleansing?

445

---

What are the port numbers of namenode?

474

---

How can we create a hadoop cluster from scratch?

467

---

What are the port numbers of task tracker?

493

---