it383 midtemr1

. is not one of the major categories of system calls

Process Control

Communications

Security

Security

is/are not a technique for passing parameters from an application to a system call

Cache memory

Registers

Stack

Cache memory

Which of the following is not considered a form of a system utility?

Application programs

Programming language support

Background services

application programs

The one program running at all times on the computer is the kernel
is loaded at power-up or reboot

bootstrap program

A ____________is a software-generated interrupt caused either by an error or a user request.

trap

Interrupt transfers control to the interrupt service routine generally

through the ____________________

What are the two major functions of operating systems? (You don't have to explain the functions in detail. Just present the names of the major functions) The two major functions of operating systems are:

Resource Management
Process Management

To turn an ugly interface into one that is pleasing .

To preform tasks based on the systems request.

If there is no job to do (i.e.

there is no running process and no interrupting being handled)

is/are not a technique for passing parameters from an application to a system call

Cache memory

Which of the following is an inter-process communication that requires two processes share memory?

shared memory

Which of the following statements is incorrect?

Operating systems provide both command line as well as graphical user interfaces.

Which of the following is not considered a form of a system utility?

Application Programs

Which of the following is a user interface where human fingers slide across the screen or press buttons to select choices?

touch screen

Which of the following is not a type of command interpreter?

KDE or GNOME

Which of the following is the only gateway between user space and kernel space?

system call

Which of the following defines the view of the operating system seen by most users?

application and system programs

A message passing model is

easier to implement than a shared memory model for intercomputer communication

Microkernels use ............ for communication.

message passing

is a mobile operating system designed for the iPhone and iPad.

iOS

Which of the following operating system structure is the one for Mach OS?

microkernel

Which of the following contains dynamically allocated data during program run time?

heap section

Which of the following process state will be switched from "running" state when an I/O event occurs?

waiting

Child processes inherit UNIX ordinary pipes from their parent process because:

A pipe is treated as a file descriptor and child processes inherit open file descriptors from their parents.

Which of the following is true in a Mach operating system?

All messages have the same priority

Multiple messages from the same sender are guaranteed an absolute ordering.

The sending thread must return immediately if a mailbox is full.

It is not designed for distributed systems All messages have the same priority

The ________ application is the application appearing on the display screen of a mobile device. foreground
saves the state of the currently running process and restores the state of the next process to run.

Context switch

When a process creates a new process using the fork() operation

which of the following states is shared between the parent process and the child process?

Which of the following system calls is used to have a new program loaded into the new process's memory space?

exec()

If process P0 is switched to process P1

state for P0 will be saved into ____

system allows more than one task to run simultaneously.

Parallel

involves distributing tasks across multiple computing cores.

Task Parallelism

The _______ multithreading model multiplexes many user-level threads to a smaller or equal number of kernel threads.

many to many

The _______ multithreading model is used by both Linux and Windows.

one to one

Both Linux and Windows use the one-to-one model. Although this model may create a large number of kernel threads

In Pthreads and Windows threads any data declared _____ are shared by all threads belonging to the same process.

globally

A ............. uses an existing thread - rather than creating a new one - to complete a task.

thread pool

Grand Central Dispatch handles blocks by

placing them on a dispatch queue

Terminating a running application using a keystroke sequence causes a(n) __________ exception.

asynchronous

Cancellation points are associated with ........... cancellation

deferred

Thread local storage is .............. Correct answer:

data that is unique to each thread.

Which of the following types of operating system kernel is free from race conditions?

Non Preemptive Kernel

Why is kernel-mode synchronization often preferred for managing shared resources between processes?

Kernel mode provides direct access to hardware resources and can enforce stricter control over access.

Where should process synchronization typically take place in order to ensure safe and efficient access to shared resources?

Both user mode and kernel mode

Which of the following is true about context switching in an operating system?

ntext switching occurs when the CPU switches from executing one process or thread to another

Which of the following correctly describes what threads share within the same process and where their data/code is stored?

Threads share the same address space