Question

7)From Schema RDD, data can be cache by which one of the given choices?

a)cacheTable("tableName")

b)Hive SQL Statement CACHE TABLE tableName

c)cache method on RDDs

d)we cannot cache data

Answer 1

Hi, @Ritu,

According to the official documentation of Spark 1.2, Spark SQL can cache tables using an in-memory columnar format by calling sqlContext.cacheTable("tableName").