Explain use cases where SequenceFile class can be a good fit?

944

---

Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?

1072

---

What is difference between regular file system and HDFS?

1063

---

What is rack-aware replica placement policy?

1032

---

Are Namenode and job tracker on the same host?

1460

---

What are the limitations of Hive?

1036

---

What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?

1107

---

What are the components of Hive architecture?

1114

---

What is HDFS Federation?

991

---

What are watches?

1036

---

Explain the Job OutputFormat?

968

---

Virtual Box & Ubuntu Installation?

996

---

What is the difference between HDFS and NAS ?

1377

---

How Mapper is instantiated in a running job?

998

---

Where do you specify the Mapper Implementation?

1028

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