Explain apache spark streaming? How is the processing of streaming data achieved in apache spark?13
Which serialization libraries are supported in spark?
Explain different queries performed by apache tajo?
Does Pig differ from MapReduce? If yes, how?
What are the consistency levels for write operations in Cassandra?
What does serdes mean in apache kafka?
What is Clustring in Hive?
What are the parameters used to create keyspace in cassandra?
When should you use a reducer?
What is the heartbeat used for?
hbase support syntax structure like sql. Yes or no?
Explain about the core components of a distributed Spark application?
What is Federation?
Is Mapreduce Required For Impala? Will Impala Continue To Work As Expected If Mapreduce Is Stopped?
Why does hive not store metadata information in hdfs?
What is small file problem in hadoop?