Question 1

Which of the following data types 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 2

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

Accepted Answer

A) True 
 B)False

Question 3

The setprecision manipulator cannot be used to format data written to a file.

Accepted Answer

A) True 
 B)False

Question 4

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 5

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

Accepted Answer

A) True 
 B)False

Question 6

All stream objects have __________ which indicate the position of the stream.

Accepted Answer

A)  error state bits 
B)  condition statements 
C)  markers 
D)  intrinsic error messages 
E)  None of these 
A)  error state bits 
B)  condition statements 
C)  markers 
D)  intrinsic error messages 
E)  None of these

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

Which of the following access flags, when used by itself, 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)  Any of these 
E)  None of these 
A)  ios::app 
B)  ios::in 
C)  ios::out 
D)  Any of these 
E)  None of these

Question 9

Which of the following is the data type that 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 10

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 11

Which of the following is the state bit that can be tested to see if the end of an input stream is encountered?

Accepted Answer

A)  ios::eof 
B)  ios::eofbit 
C)  ios::failbit 
D)  ios::badbit 
E)  None of these 
A)  ios::eof 
B)  ios::eofbit 
C)  ios::failbit 
D)  ios::badbit 
E)  None of these

Question 12

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 13

If a file already exists, you can open it with the flags ios::in | ios::out to preserve its contents.

Accepted Answer

A) True 
 B)False

Question 14

Outside of a C++ program, a file is identified by its __________while inside a C++ program, a file is identified by a(n) __________.

Accepted Answer

A)  file number, file name 
B)  file name, file number 
C)  name, address 
D)  name, file stream object 
E)  None of these 
A)  file number, file name 
B)  file name, file number 
C)  name, address 
D)  name, file stream object 
E)  None of these

Question 15

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 16

Only one file stream object can be declared per C++ program.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following statements opens a file and links it to a file stream object?

Accepted Answer

A)  open(aFile) = link(anObject); 
B)  file.open("filename.txt"); 
C)  linkstream("filename.txt"); 
D)  link(open("filename.txt"); 
E)  None of these 
A)  open(aFile) = link(anObject); 
B)  file.open("filename.txt"); 
C)  linkstream("filename.txt"); 
D)  link(open("filename.txt"); 
E)  None of these

Question 18

What is true about the following statement?
Out)open("values.dat", ios:
:
App);

Accepted Answer

A)  If the file already exists, its contents are preserved and all output is written to the end of the file. 
B)  If the file already exists, it should be replaced with a new copy of values.dat. 
C)  If the file already exists, it can be opened but not modified. 
D)  None of these 
A)  If the file already exists, its contents are preserved and all output is written to the end of the file. 
B)  If the file already exists, it should be replaced with a new copy of values.dat. 
C)  If the file already exists, it can be opened but not modified. 
D)  None of these

Which of the following data types can be used to create files and read information from them into memory?

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

The setprecision manipulator cannot be used to format data written to a file.

ofstream, ifstream, and fstream are

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

All stream objects have __________ which indicate the position of the stream.

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

Which of the following access flags, when used by itself, causes a file's contents to be deleted if the file already exists?

Which of the following is the data type that can be used to create files and write information to them but cannot be used to read information from them?

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

Which of the following is the state bit that can be tested to see if the end of an input stream is encountered?

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

If a file already exists, you can open it with the flags ios::in | ios::out to preserve its contents.

Outside of a C++ program, a file is identified by its while inside a C++ program, a file is identified by a(n) .

The end-of-file marker is automatically written

Only one file stream object can be declared per C++ program.

Which of the following statements opens a file and links it to a file stream object?

What is true about the following statement? Out)open("values.dat", ios: : App);

Introduction to Computers and Programming

Introduction to C

Expressions and Interactivity

Making Decisions

Loops and Files

Functions

Arrays and Vectors

Searching and Sorting Arrays

Pointers

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

Structured Data

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions and Templates

The Standard Template Library

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

Exam 12: Advanced File Operations

Which of the following data types can be used to create files and read information from them into memory?

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

The setprecision manipulator cannot be used to format data written to a file.

ofstream, ifstream, and fstream are

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

All stream objects have __________ which indicate the position of the stream.

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

Which of the following access flags, when used by itself, causes a file's contents to be deleted if the file already exists?

Which of the following is the data type that can be used to create files and write information to them but cannot be used to read information from them?

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

Which of the following is the state bit that can be tested to see if the end of an input stream is encountered?

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

If a file already exists, you can open it with the flags ios::in | ios::out to preserve its contents.

Outside of a C++ program, a file is identified by its __________while inside a C++ program, a file is identified by a(n) __________.

The end-of-file marker is automatically written

Only one file stream object can be declared per C++ program.

Which of the following statements opens a file and links it to a file stream object?

What is true about the following statement? Out)open("values.dat", ios: : App);

Introduction to Computers and Programming

Introduction to C

Expressions and Interactivity

Making Decisions

Loops and Files

Functions

Arrays and Vectors

Searching and Sorting Arrays

Pointers

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

Structured Data

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions and Templates

The Standard Template Library

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

Outside of a C++ program, a file is identified by its while inside a C++ program, a file is identified by a(n) .