What are watches?

985

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Explain the Job OutputFormat?

915

---

Virtual Box & Ubuntu Installation?

933

---

What is the difference between HDFS and NAS ?

1319

---

How Mapper is instantiated in a running job?

951

---

Where do you specify the Mapper Implementation?

942

---

What is the meaning of speculative execution in Hadoop? Why is it important?

1018

---

What is the InputFormat ?

965

---

Command to format the NameNode?

891

---

Who is a 'user' in HDFS?

847

---

What is the meaning of the term "non-DFS used" in Hadoop web-console?

1245

---

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

974

---

What is DistributedCache and its purpose?

871

---

What is HDFS ? How it is different from traditional file systems?

886

---

How you can contact your client everyday ?

927

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