Question 1

Which of the following is a user interface where human fingers slide across the screen or press buttons to select choices?
A) touch screen
B) graphical user interface
C) command line
D) voice control

Accepted Answer

A touch screen is a user interface where human fingers slide across the screen or press buttons to select choices.

Question 2

What is the relationship between library call open() and open() system call?
A) open() system call is part of open()
B) open() system call in an alternate version of open()
C) open() is a predecessor version of open() system call
D) open() invokes open() system call to get service from operating system

Accepted Answer

The library call open() is used by the application program to request opening a file or device. When this call is made, it invokes the open() system call to obtain the required service from the operating system. Therefore, option D is the correct answer.

Question 3

The Windows CreateFile() system call is used to create a file. What is the equivalent system call in UNIX?
A) ioctl()
B) open()
C) fork()
D) createfile()

Accepted Answer

The equivalent system call in UNIX is open().

Question 4

_____ provide(s) an interface to the services provided by an operating system.
A) Shared memory
B) System calls
C) Simulators
D) Communication

Accepted Answer

System calls provide an interface for a user-level process to request specific services from the operating system. These requests are made through predefined functions, allowing the process to interact with the system's resources such as the file system, network devices, and hardware. Shared memory, simulators, and communication mechanisms do not directly provide a user interface to the operating system's services.

Question 5

Microkernels use _____ for communication.
A) message passing
B) shared memory
C) system calls
D) virtualization

Accepted Answer

Microkernels use message passing for communication because it allows for better modularity and isolation between different components of the system, which is a key characteristic of microkernel architecture. Shared memory and system calls can be used in other types of operating systems. Virtualization is used for creating virtual machines, which is not directly related to microkernel architecture.

Question 6

A message-passing model is ____.
A) easier to implement than a shared memory model for intercomputer communication
B) faster than the shared memory model
C) a network protocol, and does not apply to operating systems
D) only useful for small simple operating systems

Accepted Answer

A message-passing model is generally easier to implement than a shared memory model for intercomputer communication because it does not require synchronization between processes accessing the same shared memory location. However, the choice between message-passing and shared memory models will depend on the specific requirements and characteristics of the system and the communication pattern.

Question 7

Which of the following operating system structure is the one for MS-DOS?
A) monolithic structure
B) layered structure
C) microkernel
D) modular approach

Accepted Answer

MS-DOS follows a monolithic structure where all the operating system services are in kernel space.

Question 8

Which of the following defines the view of the operating system seen by most users?
A) application and system programs
B) system calls
C) device drivers
D) library calls

Accepted Answer

The view of the operating system seen by most users is through the applications and system programs they use. System calls, device drivers, and library calls are components of the operating system that are not directly visible to most users.

Question 9

The ________ provides a portion of the system call interface for UNIX and Linux.
A) POSIX
B) Java
C) Standard C library
D) Standard API

Accepted Answer

The answer of The ________ provides a portion of the...

Question 10

Android runs Java programs _____________
A) in the Android RunTime (ART) virtual machine.
B) natively.
C) in the Java virtual machine.
D) Android does not run Java programs.

Accepted Answer

Android runs Java programs in the Android RunTime (ART) virtual machine. This virtual machine is optimized for Android and provides better performance and efficiency compared to running in a standard Java virtual machine.

Question 11

Which of the following inter-process communication is used in microkernel?
A) message passing
B) shared memory
C) socket communication
D) all of the above

Accepted Answer

Microkernels typically use message passing as the primary inter-process communication mechanism, as it allows for clear separation between processes and efficient communication. Shared memory and socket communication may not be as suitable for microkernels due to the potential for performance issues and difficulty in maintaining security and isolation between processes.

Question 12

What category of system call includes the ones for process creation of and termination?
A) process control
B) file management
C) device management
D) protection

Accepted Answer

The category of system call that includes process creation and termination is process control.

Question 13

The close() system call in UNIX is used to close a file. What is the equivalent system call in Windows?
A) CloseHandle()
B) close()
C) CloseFile()
D) Exit()

Accepted Answer

The equivalent system call in Windows is CloseHandle(). The close() system call in UNIX is used to close a file descriptor, while CloseHandle() in Windows is used to close a handle to a file object, which is similar to a file descriptor in UNIX. CloseFile() and Exit() are not valid system calls for closing a file in Windows.

Question 14

______ is a mobile operating system designed for the iPhone and iPad.
A) Mac OS X
B) Android
C) UNIX
D) iOS

Accepted Answer

iOS is the mobile operating system specifically designed and developed by Apple Inc. for exclusive use in their range of smartphones (iPhone) and tablets (iPad).

Question 15

Which of the following statements is incorrect?
A) An operating system provides an environment for the execution of programs.
B) An operating system manages system resources.
C) Operating systems provide both command line as well as graphical user interfaces.
D) Operating systems must provide both protection and security.

Accepted Answer

The answer of Which of the following statements is incorrect?
A)...

Question 16

The Windows CreateProcess() system call creates a new process. What is the equivalent system call in UNIX?
A) NTCreateProcess()
B) process()
C) fork()
D) getpid()

Accepted Answer

The equivalent system call in UNIX is fork(), which creates a new process by duplicating the calling process. It is similar to CreateProcess() in that it creates a new process, but is specific to the UNIX operating system. Option A (NTCreateProcess()) is specific to Windows and option B (process()) is not a valid system call in UNIX. Option D (getpid()) retrieves the process ID of the calling process and does not create a new process.

Question 17

Which of the following is not a type of command interpreter?
A) Bourne shell
B) C shell
C) Korn shell
D) KDE or GNOME

Accepted Answer

KDE and GNOME are desktop environments in Linux, and not command interpreters. The other options mentioned are all types of command interpreters used in Linux operating systems.

Question 18

Which of the following is the only gateway between user space and kernel space?
A) user interface
B) system call
C) operating system
D) hardware drivers

Accepted Answer

The only gateway between user space and kernel space is a system call. User interface, operating system, and hardware drivers are all part of the kernel space.

Question 19

Which of the following is an inter-process communication that requires two processes share memory?
A) message passing
B) shared memory
C) socket communication
D) all of the above

Accepted Answer

Shared memory is the only inter-process communication method that requires two processes to share memory. Message passing and socket communication involve communication through a message queue and network socket respectively, without directly sharing memory between processes.

Question 20

Which of the following is not an operating system service?
A) program execution
B) I/O operation
C) protection and security
D) graphical user interface

Accepted Answer

A graphical user interface (GUI) is not necessarily an essential operating system service, as some operating systems can function without it. However, program execution, I/O operations, and protection and security are essential services provided by an operating system.

Quiz 2: Operating-System Structures

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

What is the relationship between library call open() and open() system call?

The Windows CreateFile() system call is used to create a file. What is the equivalent system call in UNIX?

_____ provide(s) an interface to the services provided by an operating system.

Microkernels use _____ for communication.

A message-passing model is ____.

Which of the following operating system structure is the one for MS-DOS?

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

The ________ provides a portion of the system call interface for UNIX and Linux.

Android runs Java programs _____________

Which of the following inter-process communication is used in microkernel?

What category of system call includes the ones for process creation of and termination?

The close() system call in UNIX is used to close a file. What is the equivalent system call in Windows?

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

Which of the following statements is incorrect?

The Windows CreateProcess() system call creates a new process. What is the equivalent system call in UNIX?

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

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

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

Which of the following is not an operating system service?