What is a “Distributed Cache” in Apache Hadoop?
What is the problem with small files in Apache Hadoop?
What is Rack Awareness in Apache Hadoop?
Explain Erasure Coding in Apache Hadoop?
What is Disk Balancer in Apache Hadoop?
What is a speculative execution in Apache Hadoop MapReduce?
What are the modes in which Apache Hadoop run?
What is Safemode in Apache Hadoop?
What are the different methods to run Spark over Apache Hadoop?
Why is Apache Spark faster than Apache Hadoop?
What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?
What are the configuration files in Hadoop?
Compare Apache Hadoop and Apache Spark?
What are the different modes in which we can configure/install Hadoop?
Explain how Hadoop cluster hardware planning and provisioning is done?