How can LiveLock occur in a system, and how does it differ from DeadLock?

LiveLock occurs when multiple threads or processes continually respond to each other, changing their state, but none can make further progress. Unlike DeadLock, where threads are permanently blocked, in LiveLock they are active and continue to work but do not make progress.

Example:

• Two threads try to free resources for each other, constantly yielding, but neither successfully acquires the resource.

Differences:

• DeadLock — complete blocking, threads wait forever.
• LiveLock — threads are active but cannot perform useful work due to constant state changes.

To prevent LiveLock, random delays or changing retry strategies are often used.