Apache Hadoop Interview Questions
Un-Answered Questions { Apache Hadoop }
Is hadoop based on google mapreduce?
Can you give us some more details about ssh communication between masters and the slaves?
Explain the master class and the output class do?
What is the communication channel between client and namenode/datanode?
What if a namenode has no data?
What if rack 2 and datanode fails?
Define a namenode?
What are different types of filesystem?
What is oozie in hadoop?
Explain the features of stand alone (local) mode?
What is inputsplit in hadoop? Explain.
Explain how input and output data format of the hadoop framework?
What is Safemode in Apache Hadoop?
What is small file problem in hadoop?
Which are the two types of 'writes' in HDFS?
