Podcast
Questions and Answers
Which requirement is not satisfied by the algorithm using the Swap() instruction?
Which requirement is not satisfied by the algorithm using the Swap() instruction?
- Bounded-waiting (correct)
- Lock handling
- Data structure initialization
- Mutual-exclusion
What is the purpose of the TestAndSet() instruction in the algorithm that satisfies all critical-section requirements?
What is the purpose of the TestAndSet() instruction in the algorithm that satisfies all critical-section requirements?
- Guarantee bounded-waiting
- Ensure mutual exclusion (correct)
- Handle lock conditions
- Initialize the data structures
In the given algorithms, what triggers a process to enter its critical section?
In the given algorithms, what triggers a process to enter its critical section?
- waiting[i] == false
- Data structure initialization
- key == false (correct)
- TestAndSet() execution
What happens when the first process executes TestAndSet() in the algorithm?
What happens when the first process executes TestAndSet() in the algorithm?
Which data structure is crucial for implementing bounded-waiting mutual exclusion?
Which data structure is crucial for implementing bounded-waiting mutual exclusion?
What does the condition j == i signify in the algorithm for bounded-waiting mutual exclusion?
What does the condition j == i signify in the algorithm for bounded-waiting mutual exclusion?
What does the value of 'turn' represent in the given context?
What does the value of 'turn' represent in the given context?
How does the condition 'flag[j] == true and turn == j' impact mutual exclusion?
How does the condition 'flag[j] == true and turn == j' impact mutual exclusion?
Why must Pi execute at least one additional statement ('turn==j') before accessing the critical section?
Why must Pi execute at least one additional statement ('turn==j') before accessing the critical section?
How does Pj reset the flag [j] to allow Pi to enter its critical section?
How does Pj reset the flag [j] to allow Pi to enter its critical section?
What action must Pj take if it resets flag [j] to true in the given scenario?
What action must Pj take if it resets flag [j] to true in the given scenario?
How many times can Pi enter the critical section before Pj has a chance to do so?
How many times can Pi enter the critical section before Pj has a chance to do so?
In Peterson's solution, what does it mean when flag[i] is set to true?
In Peterson's solution, what does it mean when flag[i] is set to true?
What does the eventual value of the 'turn' variable determine in Peterson's solution?
What does the eventual value of the 'turn' variable determine in Peterson's solution?
Why is it necessary for a process to set flag[j] == false or turn == i before entering its critical section in Peterson's solution?
Why is it necessary for a process to set flag[j] == false or turn == i before entering its critical section in Peterson's solution?
What happens if both processes try to enter the critical section at the same time in Peterson's solution?
What happens if both processes try to enter the critical section at the same time in Peterson's solution?
Which condition must be satisfied for a process to enter its critical section in Peterson's solution?
Which condition must be satisfied for a process to enter its critical section in Peterson's solution?
Why does Peterson's solution focus on preserving mutual exclusion?
Why does Peterson's solution focus on preserving mutual exclusion?
