Operating Systems MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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Which type of memory is characterized by its volatility?
A. RAM
B. ROM
C. Hard Disk
D. SSD
Answer: RAM
What does ‘mutex’ stand for in process synchronization?
A. Mutual Exclusion
B. Mutual Execution
C. Multi-Tasking
D. Multiple Exchanges
Answer: Mutual Exclusion
Which of the following describes ‘deadlock detection’?
A. A method to determine if a deadlock has occurred and to identify the involved processes
B. A technique to prevent deadlock from happening
C. A process of recovering from a deadlock situation
D. A strategy to avoid potential deadlock conditions
Answer: A method to determine if a deadlock has occurred and to identify the involved processes
What is ‘resource allocation graph’ used for?
A. To represent the allocation of resources to processes and detect potential deadlocks
B. To manage process scheduling
C. To handle input and output operations
D. To optimize memory usage
Answer: To represent the allocation of resources to processes and detect potential deadlocks
What is ‘system boot’?
A. The process of starting up and initializing the operating system
B. The method of managing process scheduling
C. The technique for handling network communications
D. The process of shutting down the operating system
Answer: The process of starting up and initializing the operating system
Which of the following is a characteristic of ‘multithreading’?
A. The ability of a process to execute multiple threads concurrently
B. The ability to execute multiple processes simultaneously
C. The technique of managing I/O operations
D. The method of optimizing memory usage
Answer: The ability of a process to execute multiple threads concurrently
Which of the following is an example of a ‘distributed operating system’?
A. Google's Android
B. Microsoft Windows
C. UNIX
D. IBM's AIX
Answer: Google's Android
What is ‘kernel mode’ in operating systems?
A. A mode of operation where the operating system has full access to all hardware and system resources
B. A mode of operation where user applications have limited access to hardware
C. A method of managing user input and output
D. A technique for optimizing process execution
Answer: A mode of operation where the operating system has full access to all hardware and system resources
What is the ‘priority inversion’ problem?
A. A situation where a lower-priority process holds a resource needed by a higher-priority process, causing delays
B. A technique to optimize CPU performance
C. A method of process scheduling
D. An error in memory management
Answer: A situation where a lower-priority process holds a resource needed by a higher-priority process, causing delays