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Operating System Components Quiz

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Questions and Answers

What is the function of a kernel in an operating system?

Selecting new processes to run

Handling the removal of running programs from the CPU

Controlling process and memory management (correct)

Managing interrupt handling and device management

What does preemptive scheduling involve?

A fixed time slice allocated to a process

Assigning a processor to a task based on priority level

A process terminates or switches from a running state to a waiting state

Allowing a process to switch from running state to steady state (correct)

What is the role of direct memory access (DMA) controller?

Handling the removal of running programs from the CPU

Managing interrupt handling and device management

Selecting new processes to run

Allowing certain hardware to access RAM independently of the CPU (correct)

What does low level scheduling involve in an operating system?

Method by which a system assigns a processor to a task based on priority level Signup and view all the answers

What does the interrupt dispatch table (IDT) do?

It is a data structure used to implement an interrupt vector table Signup and view all the answers

What is the purpose of the translation lookaside buffer (TLB)?

To reduce the time taken to access a user memory location Signup and view all the answers

What is the function of the page table in memory management?

To map logical addresses to physical addresses and contain flag status, frame address, and time of entry Signup and view all the answers

What is the term used to describe a page in memory that has been modified?

Dirty Signup and view all the answers

What problem results from the excessive swapping in and out of virtual memory?

Disk thrashing Signup and view all the answers

What happens when a requested page is not in memory and a free page cannot be used for allocation?

Page fault Signup and view all the answers