Which of the following best describes the relationship between threads within a single process?

Threads share the same memory space but have their own registers.

Threads are completely independent and do not share any resources.

Threads are separate and isolated from one another.

Threads are tightly integrated, and they all have their own separate memory space.

Which of the following actions does the operating system take to execute a new process?

Create immediate PCB blocks for process.

Provide immediate CPU for process.

Delivery the resources must be process.

Provide immediate Register for process.

In the Dining Philosophers problem, what do the philosophers represent?

Concurrent processes that compete for access to shared resources.

Real-world philosophers dining in a restaurant.

Philosophical concepts unrelated to computing.

What is the role of the Memory Management Unit (MMU) in a computer system?

The MMU translates virtual addresses into physical addresses

It controls the allocation of memory to different processes.

It manages the paging and swapping of memory pages.

It is a data structure used in computer operating systems for virtual memory management

Suppose there are 4 memory blocks, B1, B2, B3, and B4, with sizes of 600K, 500K, 200K, and 300K, respectively. And we have 4 processes, P1, P2, P3, and P4, with corresponding request sizes of 250K, 420K, 150K, and 450K. When applying the best-fit algorithm, which memory blocks are allocated to the process?

P1-B1, P2 B2, P3-B4, B4: none allocated

P1-B1, P2 B2, P3 B3, B4: none allocated

Which statement best describes the function of virtual memory in the Windows operating system?

Virtual memory allows a larger address space than the physical memory available, by using a combination of RAM and hard disk space.

Virtual memory is used to store temporary files created by applications to free up physical RAM.

Virtual memory is a reserved area on the hard disk used exclusively for storing system files.

Virtual memory enables the operating system to manage the computer's display settings for multiple monitors.

Which scenario would the FIFO (First-In-First-Out) page replacement algorithm suffer from the "Belady's Anomaly"?

When the number of frames allocated to a process is less than the number of pages

When the number of frames allocated to a process exceeds the number of pages

When the number of frames allocated to a process remains constant over time

When the number of frames allocated to a process varies randomly

What is the primary disadvantage of using a fixed-size page table in a paging system?

It results in excessive memory consumption.

It limits the number of pages a process can have.

It requires a complex page replacement algorithm.

It leads to inefficient page allocation.

Which of the following best describes the difference between a process and a thread in the context of the Windows operating system?

A process contains multiple threads and shares resources, while a thread is an independent execution unit within a process.

A process is a program in execution, while a thread is a sequence of instructions that can execute independently.

A process and a thread are essentially the same in Windows OS, with no significant difference between them.

A process represents system resources, while a thread is responsible for user interface interactions in Windows OS.

What is segmentation with paging, and how does it enhance memory management?

A method that combines the flexibility of segmentation with the efficiency of paging.

A technique for managing multiple memory segments simultaneously.

A scheme that uses fixed-size pages to allocate memory.

A scheduling algorithm for thread management.

In a file's metadata, what information does the file size typically represent?

The amount of space the file occupies on the storage medium.

The physical size of the storage medium.

The number of characters in the file.

The number of pages in the file.

What types of operations is DMA useful for?

Transfers large and fast data between memory and I/O devices.

Transfers large and slow data between memory and I/O devices.

Transfers slow and small data between memory and I/O devices.

Transfers small data between memory and cache or memory and I/O devices.

In device-independent I/O software, what happens to characters that arrive while the page with the user buffer is being brought in from the disk?

The buffer is full, there is no place to put them

The buffer is ready, there is more places to put them

The buffer is clear, there is more places to put them

Which of the following is NOT one of the usual duties of Clock Software?

Helping processes in running longer than they are allowed to.

Handling the alarm system call made by user processes.

Doing profiling, monitoring, and statistics gathering.

A operating system. In bitmap image processing, what does each bit typically represent?

A data packet in network transmission

What is a nonpreemtable resource?

The one that cannot be taken away from its current owner without potentially causing failure.

The one that can be taken away from its current owner with potentially causing failure.

The one that cannot be taken away from its current owner with potentially causing failure.

The one that can be taken away from its current owner without potentially causing failure.

If a process has begun to burn a Blu-ray, suddenly taking the Blu-ray recorder away from it and giving it to another process will result in a garbled Blu-ray. What does the scenario above indicate?

It's a Non-preemptable resource

It's an Un-preemptable resource

In deadclock, what is no-preemption condition?

Resources previously granted cannot be forcibly taken away from a process. They must be explicitly released by the process holding them.

Processes currently holding resources that were granted earlier can request new resources.

There must be a circular list of two or more processes, each of which is waiting for a resource help by the next member of the chain.

Each resource is either currently assigned to exactly one process or is available.

What is the Ostrich algorithm?

A deadlock avoidance algorithm.

OSG202_FA24_FE_307014

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OSG202_FA24_FE_307014

50 questions

The operating system can be considered from two perspectives: resource manager and extension machine. From an extended machine perspective, what functions does the system provide to help users use it more conveniently than the actual machine?

Which early operating system was designed for the UNIVAC I computer and is often considered one of the first operating systems?

What happens to the program counter after an instruction is fetched?

Modern operating systems are primarily responsible for:

Which operating system runs on systems with any CPU (multi-processor, multi-core, multi-chip)?

Since operating systems interact closely with the hardware, some knowledge of computer hardware is useful for understanding them. Computers are built up of processors, memory, and I/O devices....Which of the following is not a part of the operating system?

In Unix, which the POSIX system call creates the new process?

In the FIFO page replacement algorithm, what data structure is commonly used to implement the page replacement queue?

What are the basic states of a process?

A computer has 4GB RAM of which the operating system occupies 2GB. The processes are all 1024 MB and have the same characteristics. How many percent is CPU utilization when these programs are idle waiting for I/O 50% of the time?

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