Question 1

How does open source work? How is it different from closed source projects?

Accepted Answer

Source code is compiled into machine code that is processed by a computer:Machine code is,in general,not understandable by humans and cannot be modified:In a closed source project,say Microsoft Office,the source code is highly protected and only available to trusted employees and carefully vetted contractors:The source code is very well protected:Only those trusted programmers can make changes to a closed source project:With open source,anyone can obtain the source code from the open source project's Web site:Programmers alter or add to this code depending on their interests and goals:In most cases,programmers can incorporate open source code into their own projects:They may be able to resell those projects depending on the type of license agreement the project uses:Open source succeeds because of collaboration:A programmer examines the source code and identifies a need or project that seems interesting:He or she then creates a new feature,redesigns or reprograms an existing feature,or fixes a known problem:That code is then sent to others in the open source project who then evaluate the quality and merits of the work and add it to the product,if appropriate.

Question 2

An individual buying a computer program ________.

Accepted Answer

A)  accrues liability for the usage of the program 
B)  can install the program on multiple computers 
C)  just buys a license to use the product 
D)  can use the same license to activate another program 
A)  accrues liability for the usage of the program 
B)  can install the program on multiple computers 
C)  just buys a license to use the product 
D)  can use the same license to activate another program C

Question 3

A ________ is 1,024 bytes.

Accepted Answer

A)  kilobyte 
B)  megabyte 
C)  gigabyte 
D)  terabyte 
A)  kilobyte 
B)  megabyte 
C)  gigabyte 
D)  terabyte A

Question 4

Server computers cannot host virtual machines.

Accepted Answer

A) True 
 B)False

Question 5

Programs that control a server computer's resources are referred to as ________.

Accepted Answer

A)  client operating systems 
B)  client application programs 
C)  server operating systems 
D)  server application programs 
A)  client operating systems 
B)  client application programs 
C)  server operating systems 
D)  server application programs

Question 6

The CPU loads programs into the memory as chunks.

Accepted Answer

A) True 
 B)False

Question 7

What are the two important software constraints? Explain with suitable examples.

Accepted Answer

A particular operating system is written

Question 8

What are the different categories of application programs?

Accepted Answer

Application software consists of program

Question 9

CPU speed is expressed in cycles called ________.

Accepted Answer

A)  hertz 
B)  bytes 
C)  bits 
D)  meters per second 
A)  hertz 
B)  bytes 
C)  bits 
D)  meters per second

Question 10

What is unique about Linux as an operating system?

Accepted Answer

Linux is a version of Unix that was deve

Question 11

Briefly describe how a computer works.

Accepted Answer

The CPU (central processing unit)is the

Question 12

Explain the four major nonmobile client operating systems and their functions.

Accepted Answer

The four major operating systems are Win

Question 13

Hardware consists of electronic components that input,process,output,and store data.

Accepted Answer

A) True 
 B)False

Question 14

When a user needs to load more data into an existing program,which of the following instructions will an operating system direct the CPU to attempt?

Accepted Answer

A)  wait for the existing program to be closed 
B)  restart the existing program 
C)  place the new data into unused memory 
D)  replace the memory used by the existing program with the new data 
A)  wait for the existing program to be closed 
B)  restart the existing program 
C)  place the new data into unused memory 
D)  replace the memory used by the existing program with the new data

Question 15

The CPU keeps rarely used instructions in the cache.

Accepted Answer

A) True 
 B)False

Question 16

The central processing unit is referred to as the brain of the computer.

Accepted Answer

A) True 
 B)False

Question 17

A 64-bit CPU can address more main memory than a 32-bit CPU.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is true of a server?

Accepted Answer

A)  It is used to send requests. 
B)  It can be accessed by not more than one user at a time. 
C)  It is typically accessed from another computer via a network. 
D)  It cannot process emails and Web sites. 
A)  It is used to send requests. 
B)  It can be accessed by not more than one user at a time. 
C)  It is typically accessed from another computer via a network. 
D)  It cannot process emails and Web sites.

Question 19

A computer with a quad-processor has ________ CPUs.

Accepted Answer

A)  eight 
B)  four 
C)  two 
D)  sixteen 
A)  eight 
B)  four 
C)  two 
D)  sixteen

Question 20

Which of the following is an example of volatile memory?

Accepted Answer

A)  magnetic disk 
B)  magnetic tape 
C)  optical disk 
D)  cache 
A)  magnetic disk 
B)  magnetic tape 
C)  optical disk 
D)  cache

Exam 4: Hardware and Software

How does open source work? How is it different from closed source projects?

An individual buying a computer program ________.

A ________ is 1,024 bytes.

Server computers cannot host virtual machines.

Programs that control a server computer's resources are referred to as ________.

The CPU loads programs into the memory as chunks.

What are the two important software constraints? Explain with suitable examples.

What are the different categories of application programs?

CPU speed is expressed in cycles called ________.

What is unique about Linux as an operating system?

Briefly describe how a computer works.

Explain the four major nonmobile client operating systems and their functions.

Hardware consists of electronic components that input,process,output,and store data.

When a user needs to load more data into an existing program,which of the following instructions will an operating system direct the CPU to attempt?

The CPU keeps rarely used instructions in the cache.

The central processing unit is referred to as the brain of the computer.

A 64-bit CPU can address more main memory than a 32-bit CPU.

Which of the following is true of a server?

A computer with a quad-processor has ________ CPUs.

Which of the following is an example of volatile memory?

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