HBASE QUIZ DESCRIPTION Total Questions −30 00 Max Time − 15:00 HBase is ________, defines only column families. row-oriented Schema-Based Fixed Schema None of the above 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 creates a new version of a record during Creation of a record Modification of a record Deletion of a record All the above 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 The two tables which are used to find where regions of various tables are hosted are Regiontab and Metatab Regionbase and Metabase ROOT- and META. ROOT- and 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 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 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 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 A coprocessor is executed when an event occurs. This type of coprocessor is known as observer Listener Master Event Handler 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 HBaseAdmin and ____________ are the two important classes in this package that provide DDL functionalities. HTableDescriptor HDescriptor HTable HTabDescriptor Which among the following runs on top of HDFS and provides BigTable (Google) like capabilities to Hadoop. Hbase Hive Pig Hcatalog While writing to HBase using the Mapreduce tasks, each reduces tasks writes to one region two region All the relevant region No 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 While writing to HBase using the Mapreduce tasks, each reduces tasks writes to one region two region All the relevant region No region HBaseAdmin and ____________ are the two important classes in this package that provide DDL functionalities. HTableDescriptor HDescriptor HTable HTabDescriptor 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 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() 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 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 is ________, defines only column families. Row Oriented Schema-less Fixed Schema All of the mentioned Mention how many operational commands in Hbase? Get Put Delete All of the mentioned Each version of data within a cell adds a versioning information through a VersionNo KeyValue VersionValue KeyNo 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 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 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 HBase is ________ defines only column families. Row Oriented Schema-less fixed Schema All of the mentioned Previous Next Total Question16 Wrong Answer13 Right Answer13
