To implement high availability, how many instances of the master node should you configure?

Hadoop 2.x and later implement which service as the resource coordinator?

In MapReduce, _ have _

What type of software is Hadoop Common?

If no reduction is desired, you should set the numbers of _ tasks to zero

MapReduce applications use which of these classes to report their statistics?

Which operator is necessary to be used for theta-join?

Which are the characteristics of the UNION operator of Pig?

Which function is performed by the Scheduler of Resource Manager in the YARN architecture?

Which of the given Pig data types has the following characteristics? i) It is a collection of data values. ii) These data values are ordered and have a fixed length.

In which Pig execution mode, a Java program is capable of invoking Pig commands by importing the Pig libraries?