
Java Reactive: Test Your FlatMap Knowledge
Quiz
•
Computers
•
University
•
Practice Problem
•
Medium
Harold Diaz
Used 3+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What is the primary purpose of reactive data flow manipulation?
To limit the number of threads in an application
To process and work with data efficiently
To enhance graphical user interfaces
To create static data structures
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Which operation is used to change the structure of data in a stream?
Filter
Transform
Sort
Distinct
3.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
What does the 'filter' operation do in a stream?
It limits the number of elements
It sorts the elements
It selects elements based on criteria
It maps elements to new values
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which of the following is NOT an intermediate operation in Java Streams?
map
distinct
collect
filter
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What does the 'flatMap' operation do?
It sorts the elements in a stream
It limits the number of elements in a stream
It filters elements based on a predicate
It flattens nested streams into a single stream
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What is 'deferred execution' in Java?
Execution of code in a synchronous manner
Execution of code at a later time
Execution of code in a separate thread
Execution of code immediately
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What does the 'defer' function in ReactiveX do?
Creates an Observable immediately
Defers the creation of an Observable until subscription
Executes code synchronously
Limits the number of emissions from an Observable
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