Deck 2: Data Manipulation

Question 1

Which of the following events is detrimental to an operating system's performance?

A) Deadlock
B) Interrupt
C) Booting

Answer 1

A

Question 2

Which of the following components of an operating system maintains the directory system?

A) Device drivers
B) File manager
C) Memory manager

Answer 2

B

Question 3

In contrast to early batch processing techniques, ____________________ allows the user to communicate with the computer while the user's application is being executed. In turn, this type of processing requires that the computer's responses to its environment be performed in a timely manner, a requirement known as _______________________ .

Answer 3

Interactive processing, Real-time processing

Question 4

A section of a program that should be executed by at most one process at a time is called a

A) Utility
B) Critical region
C) Privileged instruction

Question 5

Which of the following is not a role of a typical operating system?

A) Control the allocation of the machine's resources
B) Control access to the machine
C) Maintain records regarding files stored in mass storage
D) Assist the computer user in the task of processing digital photographs

Question 6

Multitasking in a computer with only one CPU is accomplished by a technique called

A) Bootstrapping
B) Batch processing
C) Multiprogramming

Question 7

Execution of an operating system is initiated by a program called the

A) Window manager
B) Scheduler
C) Boot loader

Question 8

Which of the following would not require real-time processing?

A) Typing a document with a word processor
B) Navigation of an aircraft
C) Forecasting world-wide trend for the next five year period
D) Maintaining a airline reservation system

Question 9

Which of the following items of information would not be contained in an operating system's process table?

A) The location of the memory area assigned to the process
B) The priority of each process
C) Whether the process is ready or waiting
D) The machine language instructions being executed by the process

Question 10

Which of the following components of an operating system is not part of the kernel?

A) User Interface
B) File manager
C) Scheduler

Question 11

Which of the following is not involved in a context switch?

A) Interrupt
B) Process table
C) Dispatcher
D) User Interface

Question 12

Which of the following is not an attempt to provide security?

A) Passwords
B) Privilege levels
C) Multitasking

Question 13

Which of the following is not a means of performing multiple activities at the same time?

A) Pipeling
B) Multiprogramming
C) Virtual memory
D) Multiple processors

Question 14

Which of the following would be a concern of the file manager in a multi-user computer system that would not be a concern in a single-user system?

A) Maintain records regarding the location of files
B) Maintain records regarding the ownership of files
C) Maintain records regarding the size of files
D) None of the above

Question 15

Which of the following concepts is not associated with critical regions?

A) Semaphores
B) Mutual exclusion
C) Bootstrap

Question 16

Which of the following components of an operating system is executed as the result of an interrupt signal?

A) Dispatcher
B) Memory manager
C) File manager

Question 17

Which of the following is a task that is not performed by the kernel of an operating system?

A) Communicate with the user
B) Schedule processes
C) Allocate resources
D) Avoid deadlock

Question 18

Which of the following components of an operating system handles the details associated with particular peripheral equipment?

A) Device drivers
B) File manager
C) Memory manager

Question 19

The end of a time slice is indicted by the occurrence of a signal called

A) An interrupt
B) A semaphore
C) A login

Question 20

Which of the following is a technique for controlling access to a critical region?

A) Spooling
B) Time sharing
C) Semaphore
D) Booting

Question 21

Describe concerns that occur when designing a time-sharing/multitasking operating system that do not occur in the case of a single tasking system.

Question 22

What problem could occur if, to allow more processes to share time in a multiprogramming environment, an operating system is designed to use very short time slices?
________________________________________________________________________

Question 23

Explain why the average length of a time slice would be reduced if the processes in an operating system's process table perform lots of I/O operations.

Question 24

What conditions are necessary for deadlock to occur?

Question 25

Describe the bootstrap process.

Question 26

Describe a scenario that leads to deadlock in a computer system.

Question 27

List three popular smartphone operating systems.
A. ___________________
B. ___________________
C. ___________________

Question 28

Describe how the widespread availability of multi-core processors effects operating systems.

Question 29

In the sense of the term virtual memory, give an argument that multiprogramming creates virtual CPUs.

Question 30

Explain the difference between application software and system software.

Question 31

What is the difference between a process that is waiting as opposed to a process that is ready?

Question 32

What is meant by the term load balancing in the context of multiprocessor computers?
________________________________________________________________________

Question 33

A ______________ is a set of instructions. In contrast, a ________________ is the activity of executing those instructions.

Question 34

Why is a "test-and-set" instruction included in most machine languages for CPUs designed for multitasking environments?

Question 35

What are privileged instructions?