Question 1

What role do device controllers and device drivers play in a computer system?

Accepted Answer

A general-purpose computer system consis

Question 2

On UNIX, the setuid attribute on a program causes that program to run with the user ID of the current user's ID.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following technology reduces the overhead for bulk data movement?

Accepted Answer

A)  Direct Memory Access (DM
A)  
B)  Non-uniform Memory Access (NUM
A)  
C)  Symmetric Multiprocessing (SMP) 
D)  Storage Area Network (SAN) 
A)  Direct Memory Access (DM
A)  
B)  Non-uniform Memory Access (NUM
A)  
C)  Symmetric Multiprocessing (SMP) 
D)  Storage Area Network (SAN)

Question 4

Which of the following stage triggers the CPU switch from user program to interrupt processing?

Accepted Answer

A)  I/O request 
B)  transfer done 
C)  interrupt signaled 
D)  interrupt handled 
A)  I/O request 
B)  transfer done 
C)  interrupt signaled 
D)  interrupt handled

Question 5

Which of the following is the definition of processor?

Accepted Answer

A)  the hardware that executes instructions 
B)  a physical chip that contains one or more CPUs 
C)  the basic computation unit of the CPU 
D)  including multiple computing cores on the same CPU 
A)  the hardware that executes instructions 
B)  a physical chip that contains one or more CPUs 
C)  the basic computation unit of the CPU 
D)  including multiple computing cores on the same CPU

Question 6

A system call runs in kernel mode only.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following statements is false?

Accepted Answer

A)  Mobile devices must be concerned with power consumption. 
B)  Mobile devices can provide features that are unavailable on desktop or laptop computers. 
C)  The difference in storage capacity between a mobile device and laptop is shrinking. 
D)  Mobile devices usually have fewer processing cores than a standard desktop computer. 
A)  Mobile devices must be concerned with power consumption. 
B)  Mobile devices can provide features that are unavailable on desktop or laptop computers. 
C)  The difference in storage capacity between a mobile device and laptop is shrinking. 
D)  Mobile devices usually have fewer processing cores than a standard desktop computer.

Question 8

Computer systems can be divided into four approximate components. What are they?

Accepted Answer

Hardware, operating

Question 9

Where is the location of L1 cache?

Accepted Answer

A)  inside CPU core 
B)  inside processor but outside CPU core 
C)  inside main memory 
D)  inside registers 
A)  inside CPU core 
B)  inside processor but outside CPU core 
C)  inside main memory 
D)  inside registers

Question 10

Explain why an operating system can be viewed as a resource allocator.

Accepted Answer

A computer system has many resources tha

Question 11

Which of the following principles is used for adding and removing items from a stack?

Accepted Answer

A)  first in first out (FIFO) 
B)  last in first out (LIFO) 
C)  random order 
D)  round robin 
A)  first in first out (FIFO) 
B)  last in first out (LIFO) 
C)  random order 
D)  round robin

Question 12

Describe why multi-core processing is more efficient than placing each processor on its own chip.

Accepted Answer

A large reason why it is more

Question 13

In what way is an operating system like a government?

Accepted Answer

A)  It seldom functions correctly. 
B)  It creates an environment within which other programs can do useful work. 
C)  It performs most useful functions by itself. 
D)  It is always concerned primarily with the individual's needs. 
A)  It seldom functions correctly. 
B)  It creates an environment within which other programs can do useful work. 
C)  It performs most useful functions by itself. 
D)  It is always concerned primarily with the individual's needs.

Question 14

Which of the following are used by Linux kernel as data structures?

Accepted Answer

A)  Lists, Stacks, and Queues 
B)  Trees 
C)  Hash Functions and Maps 
D)  Bitmaps 
E)  All of the above 
A)  Lists, Stacks, and Queues 
B)  Trees 
C)  Hash Functions and Maps 
D)  Bitmaps 
E)  All of the above

Question 15

Which of the following is nonvolatile?

Accepted Answer

A)  register 
B)  cache 
C)  main memory 
D)  hard-disk drive 
A)  register 
B)  cache 
C)  main memory 
D)  hard-disk drive

Question 16

Which of the following components of a computer system defines the ways to use system resources to solve computing problems?

Accepted Answer

A)  application programs 
B)  operating system 
C)  computer hardware 
D)  computer logo 
A)  application programs 
B)  operating system 
C)  computer hardware 
D)  computer logo

Question 17

Describe why direct memory access (DMA) is considered an efficient mechanism for performing I/O.

Accepted Answer

DMA is efficient for moving large amount

What role do device controllers and device drivers play in a computer system?

On UNIX, the setuid attribute on a program causes that program to run with the user ID of the current user's ID.

Which of the following technology reduces the overhead for bulk data movement?

Which of the following stage triggers the CPU switch from user program to interrupt processing?

Which of the following is the definition of processor?

A system call runs in kernel mode only.

Which of the following statements is false?

Computer systems can be divided into four approximate components. What are they?

Where is the location of L1 cache?

Explain why an operating system can be viewed as a resource allocator.

Which of the following principles is used for adding and removing items from a stack?

Describe why multi-core processing is more efficient than placing each processor on its own chip.

In what way is an operating system like a government?

Which of the following are used by Linux kernel as data structures?

Which of the following is nonvolatile?

Which of the following components of a computer system defines the ways to use system resources to solve computing problems?

Describe why direct memory access (DMA) is considered an efficient mechanism for performing I/O.

Operating-System Structures

Processes

Threads Concurrency

Cpu Scheduling

Synchronization Tools

Synchronization Examples

Deadlocks

Main Memory

Virtual Memory

Mass-Storage Structure

Io Systems

File-System Interface

File-System Implementation

File-System Internals

Security

Protection

Filters

Exam 1: Introduction

What role do device controllers and device drivers play in a computer system?

On UNIX, the setuid attribute on a program causes that program to run with the user ID of the current user's ID.

Which of the following technology reduces the overhead for bulk data movement?

Which of the following stage triggers the CPU switch from user program to interrupt processing?

Which of the following is the definition of processor?

A system call runs in kernel mode only.

Which of the following statements is false?

Computer systems can be divided into four approximate components. What are they?

Where is the location of L1 cache?

Explain why an operating system can be viewed as a resource allocator.

Which of the following principles is used for adding and removing items from a stack?

Describe why multi-core processing is more efficient than placing each processor on its own chip.

In what way is an operating system like a government?

Which of the following are used by Linux kernel as data structures?

Which of the following is nonvolatile?

Which of the following components of a computer system defines the ways to use system resources to solve computing problems?

Describe why direct memory access (DMA) is considered an efficient mechanism for performing I/O.

Operating-System Structures

Processes

Threads Concurrency

Cpu Scheduling

Synchronization Tools

Synchronization Examples

Deadlocks

Main Memory

Virtual Memory

Mass-Storage Structure

Io Systems

File-System Interface

File-System Implementation

File-System Internals

Security

Protection

Filters