MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Hadoop knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The Job makes a copy of the _____________ so that any necessary internal modifications do not reflect on the incoming parameter. |
| A. | Component |
| B. | Configuration |
| C. | Collector |
| D. | None of the mentioned |
| Answer» C. Collector | |
| 2. |
reduceProgress() gets the progress of the job’s reduce-tasks, as a float between _________ |
| A. | 0.0-1.0 |
| B. | 1.0-2.0 |
| C. | 2.0-3.0 |
| D. | None of the mentioned |
| Answer» B. 1.0-2.0 | |
| 3. |
_________ gets the diagnostic messages for a given task attempt. |
| A. | getTaskOutputFilter(Configuration conf) |
| B. | getTaskReports(TaskType type) |
| C. | getTrackingURL() |
| D. | all of the mentioned |
| E. | getTrackingURL()d) all of the mentioned |
| Answer» B. getTaskReports(TaskType type) | |
| 4. |
__________ get events indicating completion (success/failure) of component tasks. |
| A. | getJobName() |
| B. | getJobState() |
| C. | getPriority() |
| D. | getTaskCompletionEvents(int startFrom) |
| E. | of component tasks.a) getJobName()b) getJobState()c) getPriority()d) getTaskCompletionEvents(int startFrom) |
| Answer» E. of component tasks.a) getJobName()b) getJobState()c) getPriority()d) getTaskCompletionEvents(int startFrom) | |
| 5. |
Which of the following method is used to get user-specified job name? |
| A. | getJobName() |
| B. | getJobState() |
| C. | getPriority() |
| D. | all of the mentioned |
| Answer» B. getJobState() | |
| 6. |
Which of the following statement can be used to get the storage policy of a file or a directory? |
| A. | hdfs dfsadmin -getStoragePolicy path |
| B. | hdfs dfsadmin -setStoragePolicy path policyName |
| C. | hdfs dfsadmin -listStoragePolicy path policyName |
| D. | all of the mentioned |
| Answer» B. hdfs dfsadmin -setStoragePolicy path policyName | |
| 7. |
Which of the following is used to list out the storage policies? |
| A. | hdfs storagepolicies |
| B. | hdfs storage |
| C. | hd storagepolicies |
| D. | all of the mentioned |
| Answer» B. hdfs storage | |
| 8. |
_________ is a data migration tool added for archiving data. |
| A. | Mover |
| B. | Hiver |
| C. | Serde |
| D. | None of the mentioned |
| Answer» B. Hiver | |