In-Class 6

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In-Class 6

In-Class Activity to be completed in class.

Note: For this activity and all other activities, you should only make 1 submission (your first submission is always the one graded)

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Which section of Systems are you in? *

Mike

Which of these is an example of a data race?

1 point

Depositing and withdrawing money at the same time in which there is no synchronization (i.e. locks to protect a resource)

A continuous stream of cars at an intersection, such that you can never make a right turn.

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What is a deadlock?

1 point

An error in which two or more threads access a shared resource modifying it at the same time, such that interleaving of instructions return a non-deterministic result.

A situation in which a thread cannot make progress due to a lock being held by another thread.

Clear selection

What is a critical section?

1 point

A code segment that is protected by a lock, such that any shared variables can only be accessed by one thread at a time. We say this section of code is thus executed sequentially, and this is an 'atomic' or non-divisible action.

Clear selection

What is the difference between a semaphore and a mutex?

1 point

There is no difference. A mutex is simply a special case of a semaphore or binary semaphore.

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