Explanation:HCatLoader accepts a table to read data from; you can indicate which partitions to scan by immediately following the load statement with a partition filter statement. 7. _____________ accepts a table to read data from and optionally a selection predicate to indicate which partitions to scan.
A. HCatOutputFormat
B. HCatInputFormat
C. OutputFormat
D. InputFormat
Answer:A
Explanation:HCatLoader accepts a table to read data from; you can indicate which partitions to scan by immediately following the load statement with a partition filter statement. 7. _____________ accepts a table to read data from and optionally a selection predicate to indicate which partitions to scan.
A. HCatOutputFormat B. HCatInputFormat C. OutputFormat D. InputFormat
Explanation:The HCatalog interface for MapReduce — HCatInputFormat and HCatOutputFormat — is an implementation of Hadoop InputFormat and OutputFormat. 8. The HCatalog __________ supports all Hive DDL that does not require MapReduce to execute.