Operating System Concepts Quiz

What is the main focus of Chapter 6 in Operating System Concepts?

• Networking

• File Systems

• Synchronization Tools

• Memory Management

What problem does the critical-section problem address?

• Data inconsistency due to concurrent access

• Memory leaks in processes

• Inefficient CPU scheduling

• Deadlock situations

Which of the following is a requirement for a solution to the critical-section problem?

• Mutual Exclusion

• High Performance

• Low Memory Usage

• Fast I/O Operations

What does the term 'race condition' refer to?

• Processes competing for CPU time

• Inconsistent data due to concurrent access

• Deadlock in process execution

• Inefficient memory allocation

In Peterson's solution, what does the 'turn' variable indicate?

• The number of processes waiting

• The priority of the processes

• The next process to enter the critical section

• The state of the semaphore

What is a mutex lock primarily used for?

• To manage memory allocation

• To ensure mutual exclusion in critical sections

• To handle I/O operations

• To schedule processes

Which of the following is NOT a characteristic of semaphores?

• Can be binary or counting

• Are always implemented in hardware

• Can be accessed via multiple operations

• Require busy waiting

What is the purpose of a memory barrier?

• To increase memory speed

• To ensure memory operations are completed in order

• To prevent memory leaks

• To allocate memory efficiently

Which of the following describes a monitor in synchronization?

• A type of semaphore

• A high-level abstraction for process synchronization

• A low-level synchronization tool

• A hardware instruction

What does the wait() operation do in semaphore usage?

• Increases the semaphore value

• Decreases the semaphore value and may block the process

• Resumes a blocked process

• Initializes the semaphore