Cloudera HBase Certification Questions and Answers (Dumps and Practice Questions)

Question : Which of the following is supported features of HBase

1. HBase is a Column Family oriented
2. HBase support multi row transactions
3. HBase queries data using get or put or scan
4. HBase supports Secondary Indexes


1. All 1,2,3, and 4 are correct
2. Only 1,2,3 are correct
3. Only 2,3, and 4 are correct
4. Only 1,3, and 4 arre correct

Correct Answer : 4

HBase features are
Data layout Column Family oriented
Transations Single row only
Query language get or put or scan
Indexes Row key only
Max data size Peta Bytes
Read or write throughput limit Millions of queries per ssecond





Question : Which of the following feature is provided by HBase


1. Random reads and writes
2. High Throughput
3. Caching
4. All of the above


Correct Answer : 4




Question : In which scenerio HBase should be used


1. When data volume is huge e.g. TB to PB
2. When High throughput is needed e.g. 1000s queries per second
3. When there is a need of Higher Cache
4. When Data is Sparse
5. All of the above


Correct Answer : 5

Related Questions

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Question :HBase tables are considered as a distributed sorted map, in this case which is the key part



1. Row Key
2. Column Key
3. Timestamp
4. All 1,2 and 3 are correct
5. None of the above is correct




Question :

In a column families all the column members ..

1. Have same prefix
2. "collon" is delimits the CF from the qualifier
3. Columns can be created on the fly
4. All of the above






Question : Tuning and storage specification must be declared on column family level


1. True
2. False



Question : Which of the following is not an attribute of a column family


1. Copression
2. Versions
3. TTL
4. BLOCKCACHE
5. Datanode Location





Question : Which statement is true about the HBase Cells


1. Unlimited number of versions of a cell
2. Version are specified using a long integer
3. By default version is current time
4. All 1,2 and 3 re correct
5. Only 2 and 3 are correct





Question : By default HBase maintains three versions of a row ?


1. True
2. False