In the later case you'll get the same score for that question that you got on the in-class exam. If you reuse any answers from your diagnostic exam, attach your entire original exam. There are only 23 questions, not 24. The marks on the exam indicate how you did. Wavey underlines indicate partial credit, either partially correct or not really correct but on the right track.
Solid underlines indicate that that part of the answer is correct.
If you omitted an answer to part of the question, that part of the question will be circled. Each question mark in the question requires a specific answer. On question 18, it's not suitable to say you're using P and V, up and down, or monitors to implement mutual exclusion since they're not primitives. Think of hardware or software ways to implement it. List the information that must be read from disk to implement these commands, including each time an IO might occur and each cache that is involved.