Which of the following are true about processes/threads and concurrency? Select one or more: a. To...

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Which of the following are true about processes/threads and concurrency? Select one or more: a. To ensure data consistency, a shared resource should not be accessed by a thread if there is currently another thread accessing it. b. When two threads concurrently access and modify the value of a shared variable x, the final value of x will determined by the thread that was first in writing to x. C. A deadlock is said to have occurred when process A is indefinitely blocked waiting for a resource held by process B, and process B at the same time is indefinitely blocked waiting for a resource held by process A. d. A critical section is a part of code where a shared resource is accessed or modified. e. Mutual exclusion is used so that a shared resource cannot be accessed by any threads or processes at all. Which of the following are true about processes/threads and concurrency? Select one or more: a. To ensure data consistency, a shared resource should not be accessed by a thread if there is currently another thread accessing it. b. When two threads concurrently access and modify the value of a shared variable x, the final value of x will determined by the thread that was first in writing to x. C. A deadlock is said to have occurred when process A is indefinitely blocked waiting for a resource held by process B, and process B at the same time is indefinitely blocked waiting for a resource held by process A. d. A critical section is a part of code where a shared resource is accessed or modified. e. Mutual exclusion is used so that a shared resource cannot be accessed by any threads or processes at all.

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