Quiz time

Q.1 State whether the following statements are true or false:

1. All components of reliable topologies use anchoring.
2. In the event of a failure, all the tuples are played back again.
3. Shuffle grouping does load balancing.
4. Global grouping is like a broadcaster.

Q.2 Fill in the blanks:

1. _______________ is the method to tell the framework that the tuple has been successfully processed.
2. The _______________ method specifies the name of the stream.
3. The ___________ method is used to push the tuple downstream in the DAG.

Make changes to WordCount topology of the Storm-starter project to create a custom grouping so that all words starting from a particular letter always go to same instance of the WordCount bolt.