HBASE QUIZ DESCRIPTION Total Questions −30 00 Max Time − 15:00 HBase is ________ defines only column families. Row Oriented Schema-less fixed Schema All of the mentioned 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 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 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 HBase is ________, defines only column families. row-oriented Schema-Based Fixed Schema None of the above HBaseAdmin and ____________ are the two important classes in this package that provide DDL functionalities. HTableDescriptor HDescriptor HTable HTabDescriptor Hbase is what type of database? Schema-rigid Schema-Flexi Schema-less No database Hbase creates a new version of a record during Creation of a record Modification of a record Deletion of a record All the above Which of the following is not a valid file in Habse? Table-level files Region-level files Column family level files Hbase root level files HBase Admin and ____________ are the two important classes in this package that provide DDL functionalities. Htable Descriptor Hdescriptor Htable Htab Descriptor 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 Hbase creates a new version of a record during Creation of a record Modification of a record Deletion of a record All the above While writing to HBase using the Mapreduce tasks, each reduces tasks writes to one region two region All the relevant region No region Each version of data within a cell adds a versioning information through a VersionNo KeyValue VersionValue KeyNo HBaseAdmin and ____________ are the two important classes in this package that provide DDL functionalities. HTableDescriptor HDescriptor HTable HTabDescriptor Mention how many operational commands in Hbase? Get Put Delete All of the mentioned 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 The command which allows you to change an integer value stored in HBase cell without reading it first is IncrementColumnValue() Incrementinteger() IncrementCellval() Incrementnext() 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 A coprocessor is executed when an event occurs. This type of coprocessor is known as observer Listener Master Event Handler 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 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 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 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 HBase is ________, defines only column families. row-oriented Schema-Based Fixed Schema None of the above While writing to HBase using the Mapreduce tasks, each reduces tasks writes to one region two region All the relevant region No region 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 Columns in HBase are organized to Column group Column families Column base Column list Previous Next Total Question16 Wrong Answer13 Right Answer13
