Practice Pig Interview Multiple Choice Questions with Answers Quiz-1

Q.1.

__________ abstract class has three main methods for loading data and for most use cases it would suffice to extend it.

Explanation

Q.2.

Point out the correct statement.

a) LoadMeta has methods to convert byte arrays to specific types
b) The Pig load/store API is aligned with Hadoop InputFormat class only
c) LoadPush has methods to push operations from Pig runtime into loader implementations
d) All of the mentioned

Explanation

Q.3.

Which of the following has methods to deal with metadata?

Explanation

Q.4.

____________ method will be called by Pig both in the front end and back end to pass a unique signature to the Loader.

Explanation

Q.5.

Point out the wrong statement.

a) The load/store UDFs control how data goes into Pig and comes out of Pig.
b) LoadCaster has methods to convert byte arrays to specific types.
c) The meaning of getNext() has changed and is called by Pig runtime to get the last tuple in the data
d) None of the mentioned

Explanation

Q.6.

___________ return a list of hdfs files to ship to distributed cache.

Explanation

Q.7.

The loader should use ______ method to communicate the load information to the underlying InputFormat.

Explanation

Q.8.

____________ method enables the RecordReader associated with the InputFormat provided by the LoadFunc is passed to the LoadFunc.

Explanation

Q.9.

__________ method tells LoadFunc which fields are required in the Pig script.

Explanation

Q.10.

A loader implementation should implement __________ if casts (implicit or explicit) from DataByteArray fields to other types need to be supported.

Explanation