Mention what is the use of Context Object?

729

---

What is commodity hardware?

667

---

Explain what is sqoop in Hadoop ?

749

---

Explain how do ‘map’ and ‘reduce’ works?

756

---

Explain what is the purpose of RecordReader in Hadoop?

761

---

How to restart Namenode?

765

---

Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?

775

---

Mention what are the data components used by Hadoop?

670

---

What does /etc /init.d do?

709

---

What is a Combiner?

752

---

Main Components of Hadoop?

782

---

What are the four characteristics of Big Data?

724

---

Mention what is the number of default partitioner in Hadoop?

703

---

Explain what happens in textinformat ?

756

---

What is Microsoft Azure?

597

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