What are channel selectors?

1088

---

What are the stable versions of Hadoop?

1062

---

Input Split & Record Reader and what they do?

1079

---

what is the default replication factor in HDFS?

1055

---

How indexing is done in HDFS?

1147

---

Why are the number of splits equal to the number of maps?

1014

---

What are the two main components of ResourceManager?

1199

---

How will you make changes to the default configuration files?

1020

---

What are the different types of Znodes?

1013

---

How many instances of JobTracker can run on a Hadoop Cluser?

1056

---

What's the best way to copy files between HDFS clusters?

1396

---

Can Apache Kafka be used without Zookeeper?

1089

---

What is Your Cluster size ?

1471

---

What is the default block size in hdfs?

1085

---

What are active and passive "NameNodes"?

1512

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