MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Hadoop knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
____________ data file takes is based on avro serialization framework which was primarily created for hadoop. |
| A. | Oozie |
| B. | Avro |
| C. | cTakes |
| D. | Lucene |
| Answer» C. cTakes | |
| 2. |
The _________ as just the value field append(value) and the key is a LongWritable that contains the record number, count + 1. |
| A. | SetFile |
| B. | ArrayFile |
| C. | BloomMapFile |
| D. | None of the mentioned |
| E. | and the key is a LongWritable that contains the record number, count + 1.a) SetFileb) ArrayFilec) BloomMapFiled) None of the mentioned |
| Answer» C. BloomMapFile | |
| 3. |
Which of the following format is more compression-aggressive? |
| A. | Partition Compressed |
| B. | Record Compressed |
| C. | Block-Compressed |
| D. | Uncompressed |
| Answer» D. Uncompressed | |
| 4. |
How many formats of SequenceFile are present in Hadoop I/O? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 5. |
_____________DATA_FILE_TAKES_IS_BASED_ON_AVRO_SERIALIZATION_FRAMEWORK_WHICH_WAS_PRIMARILY_CREATED_FOR_HADOOP.?$ |
| A. | Oozie |
| B. | Avro |
| C. | cTakes |
| D. | Lucene |
| Answer» C. cTakes | |
| 6. |
The _________ as just the value field append(value) and the key is a LongWritable that contains the record number, count + 1? |
| A. | SetFile |
| B. | ArrayFile |
| C. | BloomMapFile |
| D. | None of the mentioned |
| Answer» C. BloomMapFile | |
| 7. |
The ______ file is populated with the key and a LongWritable that contains the starting byte position of the record. |
| A. | Array |
| B. | Index |
| C. | Immutable |
| D. | All of the mentioned |
| Answer» C. Immutable | |
| 8. |
The __________ is a directory that contains two SequenceFile. |
| A. | ReduceFile |
| B. | MapperFile |
| C. | MapFile |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 9. |
Which of the following format is more compression-aggressive ? |
| A. | Partition Compressed |
| B. | Record Compressed |
| C. | Block-Compressed |
| D. | Uncompressed |
| Answer» D. Uncompressed | |
| 10. |
How many formats of SequenceFile are present in Hadoop I/O ? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 11. |
Apache Hadoop ___________ provides a persistent data structure for binary key-value pairs. |
| A. | GetFile |
| B. | SequenceFile |
| C. | Putfile |
| D. | All of the mentioned |
| Answer» C. Putfile | |
| 12. |
Hadoop I/O Hadoop comes with a set of ________ for data I/O. |
| A. | methods |
| B. | commands |
| C. | classes |
| D. | none of the mentioned |
| Answer» E. | |