MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Hadoop knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
_________ is the primary interface for a user to describe a MapReduce job to the Hadoop framework for execution. |
| A. | Map Parameters |
| B. | JobConf |
| C. | MemoryConf |
| D. | None of the mentioned |
| Answer» C. MemoryConf | |
| 2. |
__________ is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reducer. |
| A. | Partitioner |
| B. | OutputCollector |
| C. | Reporter |
| D. | All of the mentioned |
| Answer» C. Reporter | |
| 3. |
Which of the following phases occur simultaneously? |
| A. | Shuffle and Sort |
| B. | Reduce and Sort |
| C. | Shuffle and Map |
| D. | All of the mentioned |
| Answer» B. Reduce and Sort | |
| 4. |
The right number of reduces seems to be ____________ |
| A. | 0.9 |
| B. | 0.80 |
| C. | 0.36 |
| D. | 0.95 |
| Answer» E. | |
| 5. |
Mapper implementations are passed the JobConf for the job via the ________ method. |
| A. | JobConfigure.configure |
| B. | JobConfigurable.configure |
| C. | JobConfigurable.configurable |
| D. | None of the mentioned |
| Answer» C. JobConfigurable.configurable | |
| 6. |
__________IS_THE_PRIMARY_INTERFACE_FOR_A_USER_TO_DESCRIBE_A_MAPREDUCE_JOB_TO_THE_HADOOP_FRAMEWORK_FOR_EXECUTION.?$ |
| A. | Map Parameters |
| B. | JobConf |
| C. | MemoryConf |
| D. | None of the mentioned |
| Answer» C. MemoryConf | |
| 7. |
__________ is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reduce? |
| A. | Partitioner |
| B. | OutputCollector |
| C. | Reporter |
| D. | All of the mentioned |
| Answer» C. Reporter | |
| 8. |
Mapper and Reducer implementations can use the ________ to report progress or just indicate that they are alive. |
| A. | Partitioner |
| B. | OutputCollector |
| C. | Reporter |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 9. |
Which of the following phases occur simultaneously ? |
| A. | Shuffle and Sort |
| B. | Reduce and Sort |
| C. | Shuffle and Map |
| D. | All of the mentioned |
| Answer» B. Reduce and Sort | |
| 10. |
The output of the _______ is not sorted in the Mapreduce framework for Hadoop. |
| A. | Mapper |
| B. | Cascader |
| C. | Scalding |
| D. | None of the mentioned |
| Answer» E. | |
| 11. |
The right number of reduces seems to be : |
| A. | 0.90 |
| B. | 0.80 |
| C. | 0.36 |
| D. | 0.95 |
| Answer» E. | |
| 12. |
Input to the _______ is the sorted output of the mappers. |
| A. | Reducer |
| B. | Mapper |
| C. | Shuffle |
| D. | All of the mentioned |
| Answer» B. Mapper | |
| 13. |
Mapper implementations are passed the JobConf for the job via the ________ method |
| A. | JobConfigure.configure |
| B. | JobConfigurable.configure |
| C. | JobConfigurable.configureable |
| D. | None of the mentioned |
| Answer» C. JobConfigurable.configureable | |