Assignment 1 Quiz 1 CSE5BDC T5 2023

MapReduce can be used to retrieve data faster using an index compared to RDBMS.

MapReduce is more scalable than RDBMS and therefore can handle larger datasets than RDBMS. (correct)

MapReduce performs query optimisation and therefore can execute queries faster than RDBMS.

MapReduce always runs faster than RDBMS.

MapReduce supports complex transactional operations more effectively than RDBMS.

MapReduce provides real-time data analytics compared to RDBMS.

MapReduce is fault-tolerant and can handle large-scale data processing efficiently. (correct)

MapReduce ensures data consistency and integrity better than RDBMS.

MapReduce ensures stronger data consistency across distributed systems than RDBMS.

MapReduce is designed for parallel processing of large datasets, unlike RDBMS. (correct)

MapReduce offers better support for ACID transactions compared to RDBMS.

MapReduce provides a more flexible schema for data storage than RDBMS.

<p>MapReduce shuffles less data as a result of using a scaling-out architecture.</p> Signup and view all the answers

<p>Less data will be shuffled from the mapper to the reducer.</p> Signup and view all the answers

<p>Select all employees who joined the company after 2018.</p> Signup and view all the answers

<p>Data from the mapper are shuffled and grouped at the reducer according to the output value of the mapper.</p> Signup and view all the answers