__________ does re-write data and pack rows into columns for

does-re-write-data-and-pack-rows-into-columns-for

__________ does re-write data and pack rows into columns for certain time-periods.

A. OpenTS

B. OpenTSDB

C. OpenTSD

D. OpenDB

The question was asked during an internship interview.

My doubt stems from Schema Design in HBase in portion Hive and HBase of Hadoop

Right answer is B. OpenTSDB

Best explanation: OpenTSDB is a very advanced processing technique.