What kind of storage and processing does Hadoop support?

To copy a file into the Hadoop file system, what command should you use?

In Pig, which of the following types of join operations can be performed using the Replicated join? i) Inner join ii) Outer join iii) Right-outer join iv) Left-outer join

Which one is the correct syntax for the command used for setting replication for an existing file in Hadoop WebHDFS REST API?