21. In a MapReduce program, what is the purpose of the Hadoop Counter class? A. Track the progress of MapReduce jobs B. Manage computation resources C. Execute MapReduce jobs D. Manage Hadoop ecosystem tools Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
22. What is the role of the Hadoop TaskInputOutputContext in a MapReduce job? A. Manages computation resources B. Manages task execution in MapReduce jobs C. Executes MapReduce jobs D. Manages Hadoop ecosystem tools Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
23. In a MapReduce application, what does the term "InputFormat" represent? A. Defines how input data is read B. Defines the map output format C. Defines the reduce output format D. Defines the partitioning logic Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
24. What is the significance of the Hadoop JobClient in a MapReduce job? A. Manage computation resources B. Manage task execution in MapReduce jobs C. Execute MapReduce jobs D. Manage Hadoop ecosystem tools Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
25. In a MapReduce program, what is the purpose of the Hadoop OutputCommitter? A. Manage storage layer B. Manage computation resources C. Execute MapReduce jobs D. Manage Hadoop ecosystem tools Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
26. What is the function of the Hadoop Mapper.Context in a MapReduce application? A. Generate intermediate key-value pairs B. Manages computation resources C. Execute MapReduce jobs D. Read and parse input data Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
27. In a MapReduce application, what is the role of the Hadoop Job object? A. Manages computation resources B. Manages task execution in MapReduce jobs C. Manages metadata of HDFS D. Executes MapReduce jobs Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
28. What is the purpose of the Hadoop RecordReader in a MapReduce job? A. Reads and parses input data B. Manages computation resources C. Executes MapReduce jobs D. Manages Hadoop ecosystem tools Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
29. In a MapReduce program, what is the purpose of the Hadoop Configuration object? A. Manage computation resources B. Set job-level configurations C. Execute MapReduce jobs D. Read and parse input data Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
30. What is the primary function of the Hadoop Reducer class in a MapReduce application? A. Aggregate values on the reducer side B. Generate intermediate key-value pairs C. Execute MapReduce jobs D. Read and parse input data Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
