Concurrency basics · interview question
Which of the following best describes a critical section in Java concurrency?
Multiple choiceMediumchapter-15-curatedpremiumconcurrencysynchronized-and-locks
Answer and explanation
Correct answer
D. A section of code that is executed by only one thread at a time
Why
A critical section is a part of a program that must be executed by only one thread at a time to prevent race conditions. It typically involves accessing shared resources and is protected by synchronization mechanisms.
Test yourself on Concurrency basics
A free test with instant, explained results. No account needed.
More Concurrency basics questions
- How can you avoid deadlocks when using multiple ReentrantLocks in a method?
- What does the 'volatile' keyword guarantee in Java?
- Why might using 'volatile' alone be insufficient for ensuring thread safety when updating a shared counter?
- Consider the following code snippet. What issue might occur if 'flag' is not declared as 'volatile'?
- When using synchronized blocks, how can you ensure fairness among threads?
- How would you explain a common use case for 'volatile' variables in an interview?