Following quiz provides Multiple Choice Questions (MCQs) related to HBase. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - What is the number of MemStore per column family
There is only one Memstore per column family
Q 2 - A record deleted in Hbase is not removed from Hbase immediately. Instead it is written to another file and marked as Delete. Such a file is Known as
The deleted records are stored in file is known as Tombstone.
Q 3 - Filters in Hbase can be applied to
Filetrs can be applied to rowkeys,column qualifiers and data values.
Q 4 - A small chunk of data residing in one machine which is part of a cluster of machines holding one Hbase table is known as
A region in Hbase table represents a small chunk of data which is part of a large Hbase table distributed across many servers.
Q 5 - The number of namespaces, HDFS provides to the regionservers of a Hbase database is
HDFS provides a single namespace to all the RegionServers,and any of them can access the persisted files from any other Regionserver.
Q 6 - The property which enables a fully distributed mode for Hbase is
By default HBase runs in standalone mode. For a fully distributed configuration set the hbase-cluster.distributed property to true.
Q 7 - Hbase can store
Hbase can store any data that can be converted to bytes.
Q 8 - A coprocessor is executed when an event occurs. This type of coprocessor is known as
The observer type of coprocessor is executed when an event occurs.
Q 9 - A Habse column family
A Hbase column family cannot be renamed. The only option is to create a new column family and copy the data.
Q 10 - In Habse the column can be added to a table
Without changing the schema awe can add columns to a column family in Hbase.