A child process writes "Hello" into shared memory. The parent process immediately reads the shared memory.
What is the main potential synchronization problem with this approach?

Question

A child process writes  "Hello"  into shared memory. The parent process immediately reads the shared memory. 
 What is the main potential synchronization problem with this approach?

Accepted Answer

The parent might read the memory before the child has written the message.

Answer

Shared memory automatically clears its contents when a child process starts.

Answer

The parent must use  recv()  instead of a normal memory read.

Answer

Shared memory cannot be accessed by both parent and child processes.

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A child process writes "Hello" into shared memory. The parent process immediat...

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