

MCQOPTIONS
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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 | |