Question 1

How does a C# application open a file?

Accepted Answer

A)  It opens a file by associating the file with a memory address. 
B)  It opens a file by reading the contents into RAM and storing them internally as a string. 
C)  It opens a file by creating an object and associating a stream of bytes with that object. 
D)  It opens a file by reading each line of a file into an array. 
A)  It opens a file by associating the file with a memory address. 
B)  It opens a file by reading the contents into RAM and storing them internally as a string. 
C)  It opens a file by creating an object and associating a stream of bytes with that object. 
D)  It opens a file by reading each line of a file into an array.

Question 2

When a file is open in C#, what holds the byte number of the next byte to be read?

Accepted Answer

A)  the file token 
B)  the file position pointer 
C)  the magic number 
D)  the record token 
A)  the file token 
B)  the file position pointer 
C)  the magic number 
D)  the record token

Question 3

What is a record?

Accepted Answer

Fields are grouped together to form reco

Question 4

When you write a C# program that stores a value in a variable, you are using temporary storage; the value you store is lost when the program ends or the computer loses power.What is the name for this kind of storage?

Accepted Answer

A)  volatile 
B)  nonvolatile 
C)  permanent 
D)  hard 
A)  volatile 
B)  nonvolatile 
C)  permanent 
D)  hard

Question 5

What class can be used to provide information on directories or folders?

Accepted Answer

A)  Directory 
B)  File 
C)  Cabinet 
D)  Folder 
A)  Directory 
B)  File 
C)  Cabinet 
D)  Folder

Question 6

How can you create a class whose objects can be written to and read from data files? Show an example.

Accepted Answer

To create a class that can be serialized

Question 7

When you write a program and save it to a disk, you are using temporary storage.

Accepted Answer

A) True 
 B)False

Question 8

Describe some of the methods of the Directory class.

Accepted Answer

The Directory class includes the followi

Question 9

What is a collection of fields that contain data about an entity?

Accepted Answer

A)  a file 
B)  a character 
C)  a record 
D)  a bit 
A)  a file 
B)  a character 
C)  a record 
D)  a bit

Question 10

A CSV file contains values separated by semicolon delimiters.

Accepted Answer

A) True 
 B)False

Question 11

Write a program that prompts a user for a filename and tests the file's existence.If the file exists, display the file creation time.If it does not exist, display a message.

Accepted Answer

The program should be similar to the fol

Question 12

Files exist on devices such as hard disks, USB drives, reels of magnetic tape, and optical discs.What are these files considered to be?

Accepted Answer

A)  temporary files 
B)  volatile files 
C)  soft files 
D)  permanent files 
A)  temporary files 
B)  volatile files 
C)  soft files 
D)  permanent files

Question 13

What Filestream property indicates whether the Filestream supports reading?

Accepted Answer

A)  ReadAccess 
B)  CanRead 
C)  CanSeek 
D)  CanWrite 
A)  ReadAccess 
B)  CanRead 
C)  CanSeek 
D)  CanWrite

Question 14

When a C# application is done using a file, what should it do with the file?

Accepted Answer

A)  It should delete the file. 
B)  It should return the file to RAM. 
C)  It should truncate the file. 
D)  It should close the file. 
A)  It should delete the file. 
B)  It should return the file to RAM. 
C)  It should truncate the file. 
D)  It should close the file.

Question 15

What method is a member of the String class and takes a character delimiter parameter and separates a string into substrings at each occurrence of the delimiter?

Accepted Answer

A)  Separate() 
B)  Split() 
C)  Delimit() 
D)  Substring() 
A)  Separate() 
B)  Split() 
C)  Delimit() 
D)  Substring()

Question 16

What class contains methods that allow you to access information about files?

Accepted Answer

A)  Cabinet 
B)  File 
C)  Directory 
D)  Folder 
A)  Cabinet 
B)  File 
C)  Directory 
D)  Folder

Question 17

When you store data in a computer file on a persistent storage device, what are you doing?

Accepted Answer

A)  You are reading from the file. 
B)  You are using an input stream. 
C)  You are writing to the file. 
D)  You are flashing the data to memory. 
A)  You are reading from the file. 
B)  You are using an input stream. 
C)  You are writing to the file. 
D)  You are flashing the data to memory.

Question 18

Files are used to store data on nonvolatile memory.

Accepted Answer

A) True 
 B)False

Question 19

The File class is contained in the System.IOFile namespace.

Accepted Answer

A) True 
 B)False

Question 20

The terms directory and folder are used synonymously to refer to an entity that is used to organize files.

Accepted Answer

A) True 
 B)False

How does a C# application open a file?

When a file is open in C#, what holds the byte number of the next byte to be read?

What is a record?

When you write a C# program that stores a value in a variable, you are using temporary storage; the value you store is lost when the program ends or the computer loses power.What is the name for this kind of storage?

What class can be used to provide information on directories or folders?

How can you create a class whose objects can be written to and read from data files? Show an example.

When you write a program and save it to a disk, you are using temporary storage.

Describe some of the methods of the Directory class.

What is a collection of fields that contain data about an entity?

A CSV file contains values separated by semicolon delimiters.

Write a program that prompts a user for a filename and tests the file's existence.If the file exists, display the file creation time.If it does not exist, display a message.

Files exist on devices such as hard disks, USB drives, reels of magnetic tape, and optical discs.What are these files considered to be?

What Filestream property indicates whether the Filestream supports reading?

When a C# application is done using a file, what should it do with the file?

What method is a member of the String class and takes a character delimiter parameter and separates a string into substrings at each occurrence of the delimiter?

What class contains methods that allow you to access information about files?

When you store data in a computer file on a persistent storage device, what are you doing?

Files are used to store data on nonvolatile memory.

The File class is contained in the System.IOFile namespace.

The terms directory and folder are used synonymously to refer to an entity that is used to organize files.

A First Program Using C#

Using Data

Using Gui Objects and the Visual Studio Ide

Looping

Using Arrays

Using Methods

Advanced Method Concepts

Using Classes and Objects

Introduction to Inheritance

Exception Handling

Using Controls

Handling Events

Making Decisions

Filters

Exam 14: Files and Streams

How does a C# application open a file?

When a file is open in C#, what holds the byte number of the next byte to be read?

What is a record?

When you write a C# program that stores a value in a variable, you are using temporary storage; the value you store is lost when the program ends or the computer loses power.What is the name for this kind of storage?

What class can be used to provide information on directories or folders?

How can you create a class whose objects can be written to and read from data files? Show an example.

When you write a program and save it to a disk, you are using temporary storage.

Describe some of the methods of the Directory class.

What is a collection of fields that contain data about an entity?

A CSV file contains values separated by semicolon delimiters.

Write a program that prompts a user for a filename and tests the file's existence.If the file exists, display the file creation time.If it does not exist, display a message.

Files exist on devices such as hard disks, USB drives, reels of magnetic tape, and optical discs.What are these files considered to be?

What Filestream property indicates whether the Filestream supports reading?

When a C# application is done using a file, what should it do with the file?

What method is a member of the String class and takes a character delimiter parameter and separates a string into substrings at each occurrence of the delimiter?

What class contains methods that allow you to access information about files?

When you store data in a computer file on a persistent storage device, what are you doing?

Files are used to store data on nonvolatile memory.

The File class is contained in the System.IOFile namespace.

The terms directory and folder are used synonymously to refer to an entity that is used to organize files.

A First Program Using C#

Using Data

Using Gui Objects and the Visual Studio Ide

Looping

Using Arrays

Using Methods

Advanced Method Concepts

Using Classes and Objects

Introduction to Inheritance

Exception Handling

Using Controls

Handling Events

Making Decisions

Filters