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() HBase is ________, defines only column families. row-oriented Schema-Based Fixed Schema None of the above Hbase is what type of database? Schema-rigid Schema-Flexi Schema-less No database 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 a Map-Side join, we take rows from one table and map it with rows from the other table. The size of one of the table should be Enough to fit into memory Half the size of the other table Double the size of the other table Small enough to be located in one physical machine Which among the following runs on top of HDFS and provides BigTable (Google) like capabilities to Hadoop. Hbase Hive Pig Hcatalog 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 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 In a Map-Side join, we take rows from one table and map it with rows from the other table. The size of one of the table should be Enough to fit into memory Half the size of the other table Double the size of the other table Small enough to be located in one physical machine 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 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 Dfile tombstone tombfile Earmark 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 Mention how many operational commands in Hbase? Get Put Delete All of the mentioned The _________ Server assigns regions to the region servers and takes the help of Apache ZooKeeper for this task. Region Master Zookeeper All of the mentioned HBase is ________, defines only column families. row-oriented Schema-Based Fixed Schema None of the above Apache HBase is a non-relational database modeled after Google’s _________ BigTop Scanner BigTable FoundationDB In a Map-Side join, we take rows from one table and map it with rows from the other table. The size of one of the table should be Enough to fit into memory Half the size of the other table Double the size of the other table Small enough to be located in one physical machine 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 can store Only string Only numbers Only images Any data that can be converted to bytes Columns in HBase are organized to Column group Column families Column base Column list 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 Which among the following runs on top of HDFS and provides BigTable (Google) like capabilities to Hadoop. Hbase Hive Pig Hcatalog HBase is ________ defines only column families. Row Oriented Schema-less fixed Schema All of the mentioned Which filter acts on column family? Rowfilter Column filter Family filter Valuefilter To see all the tables presen tin a user space in Hbase the command used is Show List Select Describe Explain why to use Hbase? High capacity storage system Distributed design to cater large tables Column-Oriented Stores 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 In HBase a table can be Dropped directly Dropped after disabling Only disabled, not dropped Only compressed, not dropped 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 In the standalone mode Hbase runs on Local file system HDFS system Both local and HDFS NAS file system Previous Next Total Question16 Wrong Answer13 Right Answer13
