Above the file systems comes the . . . . . . . . engine, which consists of one Job Tracker, to which client applications submit MapReduce jobs.

What is Hadoop primarily designed for?

A. Real-time data processing

B. Batch processing of large datasets

C. Structured data storage

D. In-memory caching

What is the core component of Hadoop responsible for distributed storage?

A. YARN

B. HDFS

C. MapReduce

D. Hive

Which programming language is commonly used for writing MapReduce programs?

A. Python

B. Java

C. Ruby

D. C++

What does HDFS stand for in the context of Hadoop?

A. Hadoop Distributed File System

B. High-level Data Format System

C. Hadoop Data Flow System

D. High-Density File Storage