Question 1

When you store data in a variable, it is automatically saved in a file.

Accepted Answer

A) True 
 B)False  False

Question 2

Which of the following statements opens the file info.txt for both input and output?

Accepted Answer

A)  dataFile.open("info.txt", ios::in && ios::out); 
B)  dataFile.open("info.txt", ios::in , ios::out); 
C)  dataFile.open("info.txt", input || output); 
D)  dataFile.open("info.txt", ios::in | ios::out); 
A)  dataFile.open("info.txt", ios::in && ios::out); 
B)  dataFile.open("info.txt", ios::in , ios::out); 
C)  dataFile.open("info.txt", input || output); 
D)  dataFile.open("info.txt", ios::in | ios::out); D

Question 3

In order, the three-step process of using a file in a C++ program involves:

Accepted Answer

A)  Insert a disk, open a file, remove the disk 
B)  Create the file contents, close the file, name the file 
C)  Open the file, read/write/save data, close the file 
D)  Name the file, open the file, delete the file 
E)  None of these 
A)  Insert a disk, open a file, remove the disk 
B)  Create the file contents, close the file, name the file 
C)  Open the file, read/write/save data, close the file 
D)  Name the file, open the file, delete the file 
E)  None of these C

Question 4

This data type can be used to create files and read information from them into memory.

Accepted Answer

A)  ofstream 
B)  istream 
C)  ifstream 
D)  instream 
E)  None of these 
A)  ofstream 
B)  istream 
C)  ifstream 
D)  instream 
E)  None of these

Question 5

The _________ marker is the character that marks the end of a file, and is automatically written when the file is closed.

Accepted Answer

A)  End of File (EOF) 
B)  No More Data (NM
D)  
C)  Data Stream Close (DS
C)  
D)  Data Read Stop (DRS) 
E)  None of these 
A)  End of File (EOF) 
B)  No More Data (NM
D)  
C)  Data Stream Close (DS
C)  
D)  Data Read Stop (DRS) 
E)  None of these

Question 6

This data type can be used to create files and write information to them but cannot be used to read information from them.

Accepted Answer

A)  ofstream 
B)  ifstream 
C)  afstream 
D)  outstream 
E)  None of these 
A)  ofstream 
B)  ifstream 
C)  afstream 
D)  outstream 
E)  None of these

Question 7

When used by itself, the ios::app flag causes the file's existing contents to be deleted if the file already exists.

Accepted Answer

A) True 
 B)False

Question 8

The ios::out flag causes the file's existing contents to be deleted if the file already exists.

Accepted Answer

A) True 
 B)False

Question 9

ofstream, ifstream, and fstream are:

Accepted Answer

A)  header files 
B)  libraries 
C)  data types 
D)  string arrays 
E)  None of these 
A)  header files 
B)  libraries 
C)  data types 
D)  string arrays 
E)  None of these

Question 10

To write to a file, you use the file_write() function.

Accepted Answer

A) True 
 B)False

Question 11

By default, files are opened in binary mode.

Accepted Answer

A) True 
 B)False

Question 12

The end-of-file marker is automatically written:

Accepted Answer

A)  when a file is opened with ios::eof 
B)  when a file is opened with ios::app 
C)  when a file is closed 
D)  when the program ends 
E)  None of these 
A)  when a file is opened with ios::eof 
B)  when a file is opened with ios::app 
C)  when a file is closed 
D)  when the program ends 
E)  None of these

Question 13

Closing a file causes any unsaved information still held in the file buffer to be

Accepted Answer

A)  saved to the file. 
B)  deleted. 
C)  retained in the buffer for safekeeping. 
D)  duplicated. 
E)  None of these 
A)  saved to the file. 
B)  deleted. 
C)  retained in the buffer for safekeeping. 
D)  duplicated. 
E)  None of these

Question 14

When used by itself, this access flag causes a file's contents to be deleted if the file already exists.

Accepted Answer

A)  ios::app 
B)  ios::in 
C)  ios::out 
D)  All of these 
E)  None of these 
A)  ios::app 
B)  ios::in 
C)  ios::out 
D)  All of these 
E)  None of these

Question 15

This term means non-sequentially accessing information in a file.

Accepted Answer

A)  linear access 
B)  incremented access 
C)  random access 
D)  protected access 
E)  None of these 
A)  linear access 
B)  incremented access 
C)  random access 
D)  protected access 
E)  None of these

Question 16

To set up a file to perform file I/O, you must declare:

Accepted Answer

A)  at least one variable, the contents of which will be written to the file 
B)  one or more file stream objects 
C)  a string object to store the file contents 
D)  All of these 
E)  None of these 
A)  at least one variable, the contents of which will be written to the file 
B)  one or more file stream objects 
C)  a string object to store the file contents 
D)  All of these 
E)  None of these

Question 17

Which statement opens a file in such a way that information will only be written to its end?

Accepted Answer

A)  dataFile(open.append("info.dat")); 
B)  dataFile.open("info.dat", ios::out | ios::app); 
C)  dataFile.open = "C:\info.dat" ios:append; 
D)  open(dataFile.append); 
E)  None of these 
A)  dataFile(open.append("info.dat")); 
B)  dataFile.open("info.dat", ios::out | ios::app); 
C)  dataFile.open = "C:\info.dat" ios:append; 
D)  open(dataFile.append); 
E)  None of these

Question 18

File output may be formatted the same way as console screen output.

Accepted Answer

A) True 
 B)False

Question 19

To access files from a C++ program, you must use this directive:

Accepted Answer

A) #include B) #include C) #include D) #include E) None of these A) #include B) #include C) #include D) #include E) None of these

Question 20

Data stored here disappears once the program stops running or the computer is powered down.

Accepted Answer

A)  on a CD 
B)  in RAM 
C)  on a backup tape 
D)  on the hard disk 
E)  None of these 
A)  on a CD 
B)  in RAM 
C)  on a backup tape 
D)  on the hard disk 
E)  None of these

When you store data in a variable, it is automatically saved in a file.

Which of the following statements opens the file info.txt for both input and output?

In order, the three-step process of using a file in a C++ program involves:

This data type can be used to create files and read information from them into memory.

The _________ marker is the character that marks the end of a file, and is automatically written when the file is closed.

This data type can be used to create files and write information to them but cannot be used to read information from them.

When used by itself, the ios::app flag causes the file's existing contents to be deleted if the file already exists.

The ios::out flag causes the file's existing contents to be deleted if the file already exists.

ofstream, ifstream, and fstream are:

To write to a file, you use the file_write() function.

By default, files are opened in binary mode.

The end-of-file marker is automatically written:

Closing a file causes any unsaved information still held in the file buffer to be

When used by itself, this access flag causes a file's contents to be deleted if the file already exists.

This term means non-sequentially accessing information in a file.

To set up a file to perform file I/O, you must declare:

Which statement opens a file in such a way that information will only be written to its end?

File output may be formatted the same way as console screen output.

To access files from a C++ program, you must use this directive:

Data stored here disappears once the program stops running or the computer is powered down.

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Loops and Files

Functions

Arrays

Searching and Sorting Arrays

Characters, C++-Strings, and More About the String Class

Structured Data

Structured Data

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions, Templates, and the Standard Template Library STL

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

Exam 12: Advanced File Operations

When you store data in a variable, it is automatically saved in a file.

Which of the following statements opens the file info.txt for both input and output?

In order, the three-step process of using a file in a C++ program involves:

This data type can be used to create files and read information from them into memory.

The _________ marker is the character that marks the end of a file, and is automatically written when the file is closed.

This data type can be used to create files and write information to them but cannot be used to read information from them.

When used by itself, the ios::app flag causes the file's existing contents to be deleted if the file already exists.

The ios::out flag causes the file's existing contents to be deleted if the file already exists.

ofstream, ifstream, and fstream are:

To write to a file, you use the file_write() function.

By default, files are opened in binary mode.

The end-of-file marker is automatically written:

Closing a file causes any unsaved information still held in the file buffer to be

When used by itself, this access flag causes a file's contents to be deleted if the file already exists.

This term means non-sequentially accessing information in a file.

To set up a file to perform file I/O, you must declare:

Which statement opens a file in such a way that information will only be written to its end?

File output may be formatted the same way as console screen output.

To access files from a C++ program, you must use this directive:

Data stored here disappears once the program stops running or the computer is powered down.

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Loops and Files

Functions

Arrays

Searching and Sorting Arrays

Characters, C++-Strings, and More About the String Class

Structured Data

Structured Data

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions, Templates, and the Standard Template Library STL

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters