Deck 8: Files and Streams

Question 1

The __________ namespace contains stream classes such as StreamWriter and StreamReader.

A)System.IO
B)System.ReadWrite
C)System.InputOutput
D)System.

Answer 1

A

Question 2

Data stored in a file is considered:

A)temporary data
B)persistent data
C)recurring data
D)there is no need to store data in files

Answer 2

B

Question 3

Framework Class Library classes are grouped by functionality into__________.

A)namegroups
B)namepanels
C)namespaces
D)namecollections

Answer 3

C

Question 4

In a ____________ file,records are typically stored in order by a record-key field.

A)chronological
B)non-sequential
C)sequential
D)record-key

Question 5

_______________ are used for long-term retention of large amounts of data.

A)Memory cards
B)Buffers
C)Files
D)Data structures.

Question 6

The Using statement indicates that you're using classes from a particular namespace.

Question 7

Files can only be stored on a computer's hard drive.

Question 8

Computer circuitry is able to:

A)get the value of a bit
B)examine the value of a bit
C)reverse the value of a bit
D)All of the above

Question 9

Data stored in arrays is permanent data.

Question 10

No matter how complicated a program is or looks it can all be broken down into a series of 0's and 1's.

Question 11

A field is a random group of characters.

Question 12

ToolStripMenuItem controls are used to create __________ and menu items.

A)tools
B)strips
C)toolbars
D)menus

Question 13

One byte is composed of:

A)2 bits
B)4 bits
C)8 bits
D)10 bits

Question 14

The __________ control enables you to place a menu bar in your window.

A)MenuTool
B)MenuBar
C)MenuStrip
D)None of the above

Question 15

An example of when a file should not be used is:

A)to save the status of a video game for another session.
B)to save the value of a variable at runtime.
C)to log errors in the execution of a program.
D)these are all good examples of when files should be used.

Question 16

Binary code is actually:

A)a complex programming language.
B)a series of 0's and 1's.
C)machine language instructions.
D)a series of characters representing the numbers 0 to 9

Question 17

The smallest data item in a computer is the _________.

A)bit
B)byte
C)kilobyte
D)None of the above.

Question 18

To distinguish records,there has to be one field that's unique for each instance;this is called the record key.

Question 19

Visual Basic views every file simply as a sequential stream of bytes.

Question 20

File-processing capabilities are important for a programming language to
support commercial apps.

Question 21

The ___________ block is an ideal location in which to place resource release code for resources such as files that are acquired and manipulated in the corresponding Try block.

A)Catch
B)Release
C)Finally
D)Return

Question 22

Objects which represent resources that should be returned to the system typically provide a __________ method that must be called to return the resources.

A)Release
B)Dispose
C)Return
D)Free

Question 23

SaveFileDialog property__________ returns the location and name of the selected file.

A)PathName
B)LocationName
C)FileDirectory
D)FileName

Question 24

Most file processing operations have the potential to throw __________,so such operations are typically placed in Try statements.

A)FileExceptions
B)ReadWriteExceptions
C)InputOutputExceptions
D)IOExceptions

Question 25

String method Split returns a __________ array representing the tokens.

A)Text
B)Delimiter
C)Token
D)String

Question 26

StreamWriter method __________ closes the stream and the corresponding file.

A)StreamClose
B)TerminateIO
C)FileClose
D)Close

Question 27

The __________ statement is a shorthand notation for a Try statement with a Finally block.

A)Import
B)Utilizing
C)TryFinally
D)Using

Question 28

The optional Finally block-if present-executes only when an exception occurs in the corresponding Try block.

Question 29

The Using statement simplifies writing code in which you __________ a resource.

A)release
B)obtain
C)use
D)All of the above

Question 30

Like Buttons,menu items have __________ events that notify the program when an item is selected.

A)Select
B)Hover
C)Choose
D)Click

Question 31

StreamWriter method __________ writes a sequence of characters to a file and positions the output cursor to the beginning of the next line in the file.

A)WriteLine
B)NewLine
C)NextLine
D)WriteMoveCursor

Question 32

Local variables in a Try block cannot be accessed in the corresponding Finally block.

Question 33

To specify the shortcut key for a menu or menu item,type a __________ before the character to be underlined in the menu or menu item's name.

A)%
B)*
C)&
D)#

Question 34

Namespace System must be imported into a program to use the classes in that namespace.

Question 35

StreamReader property EndOfStream returns True if the end of the file has been reached.