What is “serde” in “hive”?

714

---

Explain about the smb join in hive?

734

---

Compare hadoop & spark?

265

---

What are ‘reduces’?

714

---

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

614

---

How do ‘map’ and ‘reduce’ work?

660

---

Explain the input type/format in mapreduce by default?

586

---

What is difference the between sqoop and distcp?

1

---

Can you explain edge nodes in hadoop?

443

---

Explain some important features of hadoop?

456

---

Why do we need hadoop for big data analytics?

439

---

What are the important modes of hadoop?

538

---

Can you explain the common input formats in hadoop?

534

---

Explain how are file systems checked in hdfs?

46

---

What are the different catalog tables in hbase?

172

---