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Learning/Knowledge checks/Week 5/Day 25/Check

Module checkpoint

Day 25 · Processes & IPC knowledge check

Answer every question from your current understanding. After submission, compare your reasoning with the explanation and revisit any weak concept.

6 QuestionsOne Answer eachImmediate ScoreDetailed Explanations

Read→Reason→Select→Review

Question 1 of 6How do fork...join, join_any and join_none differ?

join_none waits for all, join_any for one, join does not waitjoin waits for one, join_any for all, and join_none kills alljoin waits for all, join_any for one, join_none waits for none

Question 2 of 6Why can an event trigger be missed?

Each named event can be triggered only once per runA trigger is not kept for a process that waits laterWaiting processes see only triggers from other modules

Question 3 of 6How does a bounded mailbox provide backpressure?

A bounded mailbox prevents consumers from readingThe mailbox deletes the oldest item automaticallyA blocking put waits while the mailbox is full

Question 4 of 6What problem does a semaphore solve in concurrent stimulus?

It transfers objects between unrelated simulatorsIt orders mailbox items by their put priorityIt limits concurrent access to a shared resource

Question 5 of 6What does wait fork do after processes were started with join_none?

It kills every process in the simulationIt blocks until its child processes completeIt restarts child processes that already completed

Question 6 of 6Why use a typed mailbox such as mailbox #(transaction)?

It limits the mailbox to a single stored itemIt restricts items to the declared transaction typeIt makes every put and get call nonblocking

Review every selection before submitting. You can retry after reading the explanations.

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