MCQOPTIONS
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MCQOPTIONS
This section includes 10 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 HDFS file system is temporarily unavailable whenever the HDFS ________ is down. |
| A. | DataNode |
| B. | NameNode |
| C. | ActionNode |
| D. | None of the mentioned |
| Answer» C. ActionNode | |
| 2. |
_________ stores its metadata on multiple disks that typically include a non-local file server. |
| A. | DataNode |
| B. | NameNode |
| C. | ActionNode |
| D. | None of the mentioned |
| Answer» C. ActionNode | |
| 3. |
THE_HDFS_FILE_SYSTEM_IS_TEMPORARILY_UNAVAILABLE_WHENEVER_THE_HDFS__________IS_DOWN.?$ |
| A. | DataNode |
| B. | NameNode |
| C. | ActionNode |
| D. | None of the mentioned |
| Answer» C. ActionNode | |
| 4. |
_________ stores its metadata on multiple disks that typically include a non-local file server? |
| A. | DataNode |
| B. | NameNode |
| C. | ActionNode |
| D. | None of the mentioned |
| Answer» C. ActionNode | |
| 5. |
HDFS, by default, replicates each data block _____ times on different nodes and on at least ____ racks. |
| A. | 3,2 |
| B. | 1,2 |
| C. | 2,3 |
| D. | All of the mentioned |
| Answer» B. 1,2 | |
| 6. |
Automatic restart and ____________ of the NameNode software to another machine is not supported. |
| A. | failover |
| B. | end |
| C. | scalability |
| D. | all of the mentioned |
| Answer» B. end | |
| 7. |
__________ support storing a copy of data at a particular instant of time. |
| A. | Data Image |
| B. | Datanots |
| C. | Snapshots |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 8. |
The ____________ and the EditLog are central data structures of HDFS. |
| A. | DsImage |
| B. | FsImage |
| C. | FsImages |
| D. | All of the mentioned |
| Answer» C. FsImages | |
| 9. |
The ___________ machine is a single point of failure for an HDFS cluster. |
| A. | DataNode |
| B. | NameNode |
| C. | ActionNode |
| D. | All of the mentioned |
| Answer» C. ActionNode | |
| 10. |
The HDFS client software implements __________ checking on the contents of HDFS files. |
| A. | metastore |
| B. | parity |
| C. | checksum |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |