What are channel selectors?

948

---

What are the stable versions of Hadoop?

949

---

Input Split & Record Reader and what they do?

965

---

what is the default replication factor in HDFS?

971

---

How indexing is done in HDFS?

1017

---

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

905

---

What are the two main components of ResourceManager?

1087

---

How will you make changes to the default configuration files?

899

---

What are the different types of Znodes?

937

---

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

968

---

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

1316

---

Can Apache Kafka be used without Zookeeper?

968

---

What is Your Cluster size ?

1388

---

What is the default block size in hdfs?

979

---

What are active and passive "NameNodes"?

1396

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