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Java: Which statement about BlockingQueue and Producer-Consumer is the strongest interview answer?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

Which statement about BlockingQueue and Producer-Consumer is the strongest interview answer?

  1. BlockingQueue and Producer-Consumer is mostly a naming style choice and has little effect on runtime or design.
  2. A BlockingQueue coordinates producers and consumers by allowing threads to wait when the queue is empty or full.
  3. BlockingQueue and Producer-Consumer exists mainly to reduce the number of Java files in a project.
  4. BlockingQueue and Producer-Consumer matters only for frontend frameworks, not for core Java applications.

Hint

Start with the core rule behind BlockingQueue and Producer-Consumer.

Answer and rationale

Correct answer: B. A BlockingQueue coordinates producers and consumers by allowing threads to wait when the queue is empty or full.

A BlockingQueue coordinates producers and consumers by allowing threads to wait when the queue is empty or full. This is the base concept interviewers commonly test first.

Track: Java