OS Practice Day 1

Generate an image showing various concepts of operating systems, including monolithic and microkernel architectures, CPU processes, memory management, and thread synchronization. Include visual metaphors like gears and networks to represent the complexity of operating systems.

Operating System Mastery Quiz

Test your knowledge on operating systems with our engaging quiz designed for enthusiasts, students, and professionals alike. Dive deep into various OS concepts and architectures as you answer questions spanning from basic principles to advanced topics.

24 diverse questions
Multiple choice, checkboxes, and text responses
Instant feedback on your performance
Learn and improve your understanding of OS mechanics

24 Questions6 MinutesCreated by DebuggingFox234

Which of the following OS architectures demonstrates a separation of mechanism and policy?

Monolithic

Microkernel

Virtual Machine

Layered

In which of the following IO Paradigms does the CPU interact directly with the device?

Programmed/Polled

Interrupt Driven

DMA

Which of the following will require kernel mode

A CPU architecture has shared cache among CPU cores, which cache issue might happen?

Cache Incoherency

Cache Inconsistency

Select all that apply to thread types

User level threads are managed by the process

Kernel level threads must be ran in kernel mode

Kernel level threads are used for IO bound processes

User level threads have more overhead when context switching

For implemeting a precedence constraint which of the following type of semaphore could prove useful

Blocking Semaphore

Counting Semaphore

Binary Semaphore

Given a page table with 2 levels, a memory access time of 20ns, A TLB access time of 5ns, what is the hit % needed to achieve an EAT of 30ns

87.5%

92.5%

95%

85%

What happens at the end of this algorithm

A victim frame is chosen

No frame is chosen and the algorithm ends

Randomly pick a victim

Wait for one of the writes to finish and select

Which of the following is NOT an OS responsibility?

Assigning CPU time to processes

Preventing buffer overflow in user programs

Managing virtual memory for processes

Allocating and deallocating memory for processes

Controlling access to system resources

Comparing the Monolithic and Microkernel OS architectures, which of the following statements is true?

Microkernel architecture has better performance because it can leverage hardware resources better

Monolithic architecture has better system reliability

Microkernel components are more reusable, modular, and can evolve independently

In a uniprocessor environment, ignoring the possibility of preemption, which of the following scenarios would lead to a transition of execution context from user mode to kernel mode when running a user process? Check all apply.

Calls a file read library routine

Calls a floating-point calculation library routine

Calls a fork system call

A mouse click event occurs

Consider a graph with two processes and two resources. Process P1 is holding resource R1 and waiting for resource R2, and process P2 is holding resource R2 and waiting for resource R1. Is this a deadlock situation?

True

False

Consider the following C code segment and the comments in the code. What would be the most likely sequence of process state transitions of a process executing these statements? Explain each process state transition briefly. Ignore the New state after process creation, and use a process state model that has 4 states: ready, running, blocked, terminated, and assume it starts with a running state.

OS Practice Day 1

Operating System Mastery Quiz

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