Online HBase Quiz Questions With Answers Part 2


1. Online HBase Quiz Questions

In our last article, we have discussed Online HBase Quiz part 1. Today, these Hadoop based Online HBase Quiz Questions will help you to brush up your concepts of HBase. This Online HBase Quiz is a free test and you can attempt it multiple times. These quiz questions are specially designed by HBase Professionals and are helpful for both freshers as well as experienced. This Online HBase Quiz provides a useful collection of Multiple Choice Questions (MCQs) based on HBase. Follow each link to learn more about HBase Technology.

So, let’s explore free Online HBase Quiz Questions.

Online HBase Quiz

Online HBase Quiz Questions With Answers Part 2

Que 1. The minimum number of row versions to keep is configured per column family via :

The minimum number of row versions parameter is used together with the time-to-live parameter and can be combined with the number of row versions parameter. Follow the link to learn more about HBase

Que 2. Point out the correct statement :

The number of max versions may need to be increased or decreased depending on application needs. Follow the link to learn more about HBase

Que 3. HBase supports a ____________ interface via Put and Result

Input could be strings, numbers, complex objects, or even images as long as they can rendered as bytes. Follow the link to learn more about HBase

Que 4. One supported datatype that deserves special mention are :

Synchronization on counters are done on the RegionServer, not in the client. Follow the link to learn more about HBase

Que 5. Point out the wrong statement :

The advised usage for Constraints is in enforcing business rules for attributes in the table. Follow the link to learn more about HBase

Que 6. The _________ suffers from the monotonically increasing rowkey problem

Attention must be paid to the number of buckets, because this will require the same number of scans to return results. Follow the link to learn more about HBase

Que 7. __________ does re-write data and pack rows into columns for certain time-periods.

OpenTSDB is a very advanced processing technique. Follow the link to learn more about HBase

Que 8. Which command is used to disable all the tables matching the given regex ?

The syntax for disable_all command is as follows : hbase> disable_all ‘r.*’ Follow the link to learn more about HBase Commands

Que 9. __________ command disables drops and recreates a table.

The syntax of truncate is as follows: hbase> truncate ‘table name’ Follow the link to learn more about HBase Commands

Que 10. Correct and valid syntax for count command is :

You can count the number of rows of a table using the count command. Follow the link to learn more about HBase Commands

Que 11. _______ can change the maximum number of cells of a column family.

Alter is the command used to make changes to an existing table. Follow the link to learn more about HBase Commands

Que 12. Point out the correct statement :

Columns can also be added through HbaseAdmin. Follow the link to learn more about HBase Admin

Que 13. Which of the following is not a table scope operator ?

Using alter, you can set and remove table scope operators such as MAX_FILESIZE, READONLY, MEMSTORE_FLUSHSIZE, DEFERRED_LOG_FLUSH, etc. Follow the link to learn more about HBase

Que 14. You can delete a column family from a table using the method _________ of HBAseAdmin class.

Alter command also can be used to delete a column family. Follow the link to learn more about HBase Commands

Que 15. Point out the wrong statement :

You can retrieve an HBase table data using the add method variants in Get class. Follow the link to learn more about HBase table Commands

Que 16. __________ class adds HBase configuration files to its object.

You can create a configuration object using the create() method of the HbaseConfiguration class. Follow the link to learn more about HBase Configuration

Que 17. The ________ class provides the getValue() method to read the values from its instance.

Get the result by passing your Get class instance to the get method of the HTable class. This method returns the Result class object, which holds the requested result. Follow the link to learn more about HBase

Que 18. ________ communicate with the client and handle data-related operations.

Region Server handle read and write requests for all the regions under it. Follow the link to learn more about HBase

Que 19. _________ is the main configuration file of HBase.

Set the data directory to an appropriate location by opening the HBase home folder in /usr/local/HBase. Follow the link to learn more about Hbase Configuration

Que 20. HBase uses the _______ File System to store its data.

The data storage will be in the form of regions (tables). These regions will be split up and stored in region servers. Follow the link to learn more about HBase

2. Conclusion

Hence, you have completed our second part of Online HBase Quiz. Now, get ready for Top Online HBase Quiz questions part 3 which contains technical questions. Still, if any doubt, ask in the comment tab.