HBASE QUIZ DESCRIPTION Total Questions −30 00 Max Time − 15:00 The command which allows you to change an integer value stored in HBase cell without reading it first is IncrementColumnValue() Incrementinteger() IncrementCellval() Incrementnext() If a region directory does not have .tmp directory then it had no compaction it had minor compaction it had major compaction it had invalid region If a region directory does not have .tmp directory then it had no compaction it had minor compaction it had major compaction it had invalid region In the standalone mode Hbase runs on Local file system HDFS system Both local and HDFS NAS file system Every row in a Hbase table has Same number of columns Same number of column families Different number of columns Different number of column families HBaseAdmin and ____________ are the two important classes in this package that provide DDL functionalities. HTableDescriptor HDescriptor HTable HTabDescriptor HBaseAdmin and ____________ are the two important classes in this package that provide DDL functionalities. HTableDescriptor HDescriptor HTable HTabDescriptor HBase is ________, defines only column families. row-oriented Schema-Based Fixed Schema None of the above The Hbase tables are Made read only by setting the read-only option Always writeable Always read-only Are made read only using the query to the table Apache HBase is a non-relational database modeled after Google’s _________ BigTop Scanner BigTable FoundationDB The property which enables a fully distributed mode for HBase is hbase cluster distributed all hbase cluster distributed enable hbase cluster fully distributed hbase cluster distributed HBase is ________, defines only column families. row-oriented Schema-Based Fixed Schema None of the above Hbase creates a new version of a record during Creation of a record Modification of a record Deletion of a record All the above Explain why to use Hbase? High capacity storage system Distributed design to cater large tables Column-Oriented Stores All the above Columns in HBase are organized to Column group Column families Column base Column list To see all the tables presen tin a user space in Hbase the command used is Show List Select Describe Hbase creates a new version of a record during Creation of a record Modification of a record Deletion of a record All the above The Hbase tables are Made read only by setting the read-only option Always writeable Always read-only Are made read only using the query to the table All MapReduce jobs reading from an HBase table accept their[K1, V1] pair in the form of rowwid: cell value rowkey: Scan result column family: cell value column attribute: Scan result Hbase is what type of database? Schema-rigid Schema-Flexi Schema-less No database Mention how many operational commands in Hbase? Get Put Delete All of the mentioned Retrieving a batch of rows in every RPC call made by an API to a HBase database is called a Batch Scan Bulkrow Grouprow HBase is ________ defines only column families. Row Oriented Schema-less fixed Schema All of the mentioned The command which allows you to change an integer value stored in HBase cell without reading it first is IncrementColumnValue() Incrementinteger() IncrementCellval() Incrementnext() There are 2 programs which confirm a write into Hbase. One is write-ahead log(WAL) and the other one is Mem confirm log Write complete log log store Memstore When a region does not have recovered.edits file, it indicates. No compaction has happened in the region Only major compaction has happened Only minor compaction has happened No write-ahead log replay has happened Every row in a Hbase table has Same number of columns Same number of column families Different number of columns Different number of column families In HBase a table can be Dropped directly Dropped after disabling Only disabled, not dropped Only compressed, not dropped While writing to HBase using the Mapreduce tasks, each reduces tasks writes to one region two region All the relevant region No region A coprocessor is executed when an event occurs. This type of coprocessor is known as observer Listener Master Event Handler Previous Next Total Question16 Wrong Answer13 Right Answer13
