Introduction to Big Data Quiz 2: 6 August 2023 (May 2023 term)

1. A

   Big data is used to refer to the set of technologies built around Hadoop

2. B

   Big data refers to the cloud-native design principle

3. C

   Big data is about All data, Any Time, Any Method

4. D

   Big data is about volume, velocity, variety

1. A

   Spark and MapReduce

2. B

   Map and Reduce

3. C

   Hadoop and Spark

4. D

   MapReduce and Hadoop

Select all that apply.

1. A

   MapReduce forces barrier synchronization after every step, while Spark's execution is gated on Actions

2. B

   MapReduce leverages memory heavily, while Spark optimizes for disk-based computations

3. C

   MapReduce leverages disk heavily, while Spark optimizes for memory-based computations

4. D

   MapReduce executes linearly without parallelization, while Spark executes in parallel using Directed Acyclic Graphs

5. E

   MapReduce enables massively parallel computation, while Spark's driver program sequentially executes each worker