quize.txt

SSD2的答案 仅供参考 不要直接提交

15.1. 
A file contains _____ that are made up of fields.  


  (a) items
(b) bits
(c) types
(d) records  

Correct answer is  (d)  

Your score on this question is: 14.29  

Feedback: 
  See page 495 in the textbook.  


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2. 
What contains fields of data about one entity?  


  (a) String
(b) Key
(c) Record
(d) Entity  

Correct answer is  (c)  

Your score on this question is: 14.29  

Feedback: 
  See page 495 in the textbook.  


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3. 
A person, place, thing, or event about which data is stored is called a(n)  


  (a) string
(b) entity
(c) record
(d) key  

Correct answer is  (b)  

Your score on this question is: 14.29  

Feedback: 
  See page 495 in the textbook.  


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4. 
Which of the following is (are) true of a database?

A database can contain a variety of different record formats. 
Each database can have only one record format. 
A database consolidates flat files into a single collection of diverse information. 



  (a) I only
(b) I and III only
(c) II only
(d) II and III only  

Correct answer is  (b)  

Your score on this question is: 14.29  

Feedback: 
  See section 4.4 of the course notes.  


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5. 
Each field in a database record has a field _____ that identifies its contents.  


  (a) item
(b) name
(c) structure
(d) nomenclature  

Correct answer is  (b)  

Your score on this question is: 14.29  

Feedback: 
  See page 494 in the textbook.  


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6. 
In a database application, data is organized into which of the following?  


  (a) Records, which form the smallest unit of data manipulated by a database
(b) A collection of unrelated fields
(c) Fields and records, which can be used interchangeably
(d) Records, each of which is comprised of a set of interrelated fields  

Correct answer is  (d)  

Your score on this question is: 14.29  

Feedback: 
  See section 4.4 of the course notes.  


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7. 
File management software adapts to different files because of a concept called data  


  (a) indexing
(b) independence
(c) input
(d) sorting  

Correct answer is  (b)  

Your score on this question is: 14.29  

14.1. 
Batch files and scripts are easy to create and modify because they are   


  (a) compiled using a program tool
(b) commented, making them easy to understand
(c) interpreted by the command processor
(d) written in binary instruction code for the CPU  

Correct answer is  (c)  
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2. 
Which of the following is (are) true regarding the use of a batch file?

It performs a set of commands frequently typed in by a user. 
It performs a set of commands that are selected from a GUI using a mouse. 
It performs a set of commands after hours that do not require user input. 



  (a) I, II, and III
(b) I and III only
(c) I and II only
(d) III only  

Correct answer is  (b) 
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3. 
Which of the following is not true regarding the use of Standard Input and Standard Output logical devices in a command line?



  (a) A change to the Standard Output device remains in effect for all subsequent commands entered from the keyboard.
(b) Standard Output can be mapped to a file that receives output of importance to a user for a command or a program.
(c) Programs written to use the Standard Input and Standard Output logical devices do not need to be rewritten to direct their output to the printer instead of the display.
(d) Standard Input can be mapped to a device or file that provides user input for a command or a program.  

Correct answer is  (a)  
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4. 
Under Windows, what extension is used for files that contain a sequence of predefined commands to the operating system?  


  (a) .bat
(b) .com
(c) .txt
(d) .exe  

Correct answer is  (a) 
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5. 
What is the purpose of a switch in a command-line interface?  


  (a) It specifies a group of files that are affected by the command.
(b) It tells the command processor what command to execute.
(c) It specifies a change to the normal function of a specified command.
(d) It allows two commands to be included in a single command line.  

Correct answer is  (c)  
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6. 
Which of the following is (are) true regarding the use of Standard Input and Standard Output logical device facilities provided through an operating system's command line interface?

Use > abc.txt to change the Standard Output logical device to be the file abc.txt. 
Use << abc.txt the change the Standard Input logical device to be the file abc.txt. 
Use the | character between two commands, allowing the output of the first to be used as input for the second. 



  (a) I, II, and III
(b) I and II only
(c) I only
(d) I and III only  

Correct answer is  (d)  
12.1. 
Software is classified as _____ software if the only reason it is needed is to run a computer.  


  (a) shareware
(b) application
(c) public domain
(d) system  

Correct answer is  (d) 
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2. 
A software _____ may extend the rights given by copyright laws.  


  (a) license
(b) copyright
(c) warranty
(d) trademark  

Correct answer is  (a)  
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3. 
Which of the following types of licenses usually allows use of the software for a trial period?  


  (a) Open source software
(b) Freeware
(c) Application software
(d) Shareware  

Correct answer is  (d)  
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4. 
A copyright is a form of legal protection that exclusively grants the copyright owner which of the following rights with regard to the copyrighted software?

Copying 
Distributing or selling 
Modifying 



  (a) I, II, and III
(b) I and II only
(c) II only
(d) II and III only  

Correct answer is  (a 


11.1. 
 Which of the following is (are) true regarding the New Technology File System? 

NTFS has built-in recoverability feature. 
The cluster size varies in NTFS depending on the size of the disk. 
NTFS supports data access control and ownership privileges. 
 
 

  (a) I, II, and III
 (b) I and II only
 (c) I and III only
 (d) II and III only  

 Correct answer is  (a)  

 Your score on this question is: 10.00  

 Feedback: 
   
See section 3.4.2, subsection "FAT16," in the course notes.
 
 

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 2. 
 In Windows 9x/Me/XP/NT/2000, which of the following characters are allowed in file names?

? 
/ 
* 
 
 

  (a) II only
 (b) I only
 (c) III only
 (d) None  

 Correct answer is  (d)  

 Your score on this question is: 10.00  

 Feedback: 
   See page 170 in the textbook.  
 

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 3. 
 Which of the following are true about the presence of hierarchical file systems within an operating system?

Hierarchical file systems require all files to be stored in a directory. 
Hierarchical file systems make it easier for users to organize files. 
Hierarchical file systems require that all files and subfolders in a given folder have names that are unique. 
   (a) I, II, and III
 (b) III only
 (c) II and III only
 (d) I and II only  

 Correct answer is  (a)  

 Your score on this question is: 10.00  

 Feedback: 
   See section 3.4.1 of the course notes.  
 

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 4. 
 When a user creates a file, the user must provide it with a valid file name that adheres to specific rules, referred to as file-naming  
 

  (a) procedures
 (b) syntax
 (c) conventions
 (d) policies  

 Correct answer is  (c)  

 Your score on this question is: 0.00  

 Feedback: 
   See page 170 in the textbook.  
 

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 5. 
 Which of the following is true about the names of files and subfolders that reside in the same folder?  
 

  (a) Names must be unique within the entire disk or partition.
 (b) Names must always include an extension.
 (c) Names must be unique within that parent folder.
 (d) Names must always start with a capital letter.  

 Correct answer is  (c)  

 Your score on this question is: 10.00  

 Feedback: 
   See section 3.4.1 of the course notes.  
 

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 6. 
 Consider a sector in a disk that is only partially filled with data. The unused portion of the sector is known as 
 
 

  (a) free space
 (b) non-data space
 (c) empty space
 (d) slack space  

 Correct answer is  (d)  

 Your score on this question is: 0.00  

 Feedback: 
   
See section 3.4.2, subsection "Clusters and File Allocation Tables," in the course notes.
 
 

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 7. 
 The type of data contained within a file in Windows is indicated by the _____ of the file.  
 

  (a) content
 (b) extension
 (c) attributes
 (d) parent folder  

 Correct answer is  (b)  

 Your score on this question is: 0.00  

 Feedback: 
   See section 3.4.1 of the course notes.  
 

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 8. 
 Which of the following structures is used by operating systems to describe to a user how files and folders, excluding shortcuts, are organized on a storage device?  
 

  (a) a matrix
 (b) a tree
 (c) a root
 (d) a list  

 Correct answer is  (b)  

 Your score on this question is: 0.00  

 Feedback: 
   See section 3.4.1 of the course notes.  
 

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 9. 
 A file could contain which of the following?

A document 
Digitized sounds 
Digital video 
 
 

  (a) I only
 (b) I, II, and III
 (c) III only
 (d) II and III only  

 Correct answer is  (b)  

 Your score on this question is: 10.00  

 Feedback: 
   See page 205 in the textbook.  
 

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 10. 
 Which of the following are reasons for partitioning a physical disk drive into one or more logical disk drives?

For file systems such as FAT16, smaller partitions use disk space more effectively. 
Partitioning a drive limits the size a file can grow to. 
If the file system is FAT16 and the drive is larger than 2GB, partitioning the drive is necessary to make the entire drive accessible. 
 
 

  (a) I and III only
 (b) I and II only
 (c) I, II, and III
 (d) II and III only  

 Correct answer is  (c)  

 Your score on this question is: 10.00  
10. 1.