https://www.youtube.com/watch?v=CTdc67MMaL8

https://www.youtube.com/watch?v=CI0QkZYsLmw
https://www.youtube.com/watch?v=DLutRT6K2rM

https://towardsdatascience.com/simplifying-the-mapreduce-framework-20915f13ebd3

https://towardsdatascience.com/apache-pig-1dd61d2ead31

https://pig.apache.org/docs/r0.17.0/basic.html#reserved-keywords

https://www.javatpoint.com/pig-udf

https://www.phonepe.com/careers/jobs/Data-Scientist/4359523003



=>Five parts of Distributed object model:139
=>Local & remote file systems on NFS:192
=>Venus & Vice in AFS:202 & 205.
=>Nested Transactions & Exclusice locks:280 & 285
=>Deadlock with write locks:292 & 293.
=>CORBA services with examples(Smartzworld.com reference=Unit-5 53to55).
=>Nested banking transaction:321 & 322.
=>Two-phase commit protocol:327 to 334.