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Java: Which statement about Java Memory Model, volatile, and synchronized is the strongest interview answer?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

Which statement about Java Memory Model, volatile, and synchronized is the strongest interview answer?

  1. Java Memory Model, volatile, and synchronized is mostly a naming style choice and has little effect on runtime or design.
  2. The Java Memory Model defines visibility and ordering guarantees for shared data across threads.
  3. Java Memory Model, volatile, and synchronized exists mainly to reduce the number of Java files in a project.
  4. Java Memory Model, volatile, and synchronized matters only for frontend frameworks, not for core Java applications.

Hint

Start with the core rule behind Java Memory Model, volatile, and synchronized.

Answer and rationale

Correct answer: B. The Java Memory Model defines visibility and ordering guarantees for shared data across threads.

The Java Memory Model defines visibility and ordering guarantees for shared data across threads. This is the base concept interviewers commonly test first.

Track: Java