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Ece 206 Exam Questions And Correct
Answers 100% Verified.
Which header file should be used while working with the output string stream? -
Answer✔#include <sstream>
_____ is a predefined ostream object that is pre-associated with a system's standard output,
usually a computer screen. - Answer✔cout
To use an output file in a C++ program you must - Answer✔open the file
create a file stream object that will "point to" to the file
do B and C, but not A
The code for myoutfile.txt generates an error. Why? - Answer✔The file 'myoutfile.txt' has not
been opened
The ____ function returns true if the previous stream operation had an error. - Answer✔fail()
A program can insert characters into an ostringstream buffer using the ______ operator. -
Answer✔<<
Which XXX generates "Tim Smith is 19 years old." as the output? - Answer✔playerObj <<
players << " is " << age << " years old.";
Why would a file fail to open? - Answer✔The file has incorrect file permissions or the disk is full.
Which XXX will search the input name in the GuestList.txt file? - Answer✔if (!inFS.fail())
Given an ofstream outFS, which syntax is used to check whether a file is opened successfully? -
Answer✔if (!outFS.is_open()) { ... }
To use files in a C++ program you must include the ________ header file. - Answer✔fstream
If a file exists in a directory and contains data, when an ofstream is used to write data into the
file _____. - Answer✔the file is overwritten with the new data.
Manipulators are defined in the _____ and _____ libraries in namespace std. -
Answer✔iomanip; ios
1|Page
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED.
The ostringstream member function ____ returns the contents of an ostringstream buffer as a
string. - Answer✔str()
True/False: Both function headers and function calls must list the data types of all data being
passed to the function. - Answer✔False
A(n) ________ argument is one that is automatically passed to a parameter when the argument
is left out of the function call. - Answer✔default
In a function prototype, in addition to the name of the function, you are required to furnish -
Answer✔the data type of the return value.
a data type for each parameter.
A and C, but not B.
A ________ is a dummy function that is called instead of the actual function it represents, to
test that the call to and return from the function are working correctly. - Answer✔stub
The ________ statement causes a function to end and the flow of control to move back to the
point where the function call was made. - Answer✔return
In a function header, in addition to the name of the function, you are required to furnish -
Answer✔a data type for each parameter.
an identifier name for each parameter.
the data type of the return value.
all of the above.
A void function is one that - Answer✔returns no value
Breaking a program up into a set of manageable sized functions is called ________
programming. - Answer✔modular
When used as a parameter, a ________ variable allows a function to access and modify the
original argument passed to it. - Answer✔reference
A function ________ is a statement within the code that causes a function to actually execute. -
Answer✔call
True/False: When you make a function call, the order of the arguments you send does not
matter as long as the number of arguments matches the number of parameters the function
has. - Answer✔False
When more than one function has the same name they are called ________ functions. -
Answer✔overloaded
2|Page
Ece 206 Exam Questions And Correct
Answers 100% Verified.
Which header file should be used while working with the output string stream? -
Answer✔#include <sstream>
_____ is a predefined ostream object that is pre-associated with a system's standard output,
usually a computer screen. - Answer✔cout
To use an output file in a C++ program you must - Answer✔open the file
create a file stream object that will "point to" to the file
do B and C, but not A
The code for myoutfile.txt generates an error. Why? - Answer✔The file 'myoutfile.txt' has not
been opened
The ____ function returns true if the previous stream operation had an error. - Answer✔fail()
A program can insert characters into an ostringstream buffer using the ______ operator. -
Answer✔<<
Which XXX generates "Tim Smith is 19 years old." as the output? - Answer✔playerObj <<
players << " is " << age << " years old.";
Why would a file fail to open? - Answer✔The file has incorrect file permissions or the disk is full.
Which XXX will search the input name in the GuestList.txt file? - Answer✔if (!inFS.fail())
Given an ofstream outFS, which syntax is used to check whether a file is opened successfully? -
Answer✔if (!outFS.is_open()) { ... }
To use files in a C++ program you must include the ________ header file. - Answer✔fstream
If a file exists in a directory and contains data, when an ofstream is used to write data into the
file _____. - Answer✔the file is overwritten with the new data.
Manipulators are defined in the _____ and _____ libraries in namespace std. -
Answer✔iomanip; ios
1|Page
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED.
The ostringstream member function ____ returns the contents of an ostringstream buffer as a
string. - Answer✔str()
True/False: Both function headers and function calls must list the data types of all data being
passed to the function. - Answer✔False
A(n) ________ argument is one that is automatically passed to a parameter when the argument
is left out of the function call. - Answer✔default
In a function prototype, in addition to the name of the function, you are required to furnish -
Answer✔the data type of the return value.
a data type for each parameter.
A and C, but not B.
A ________ is a dummy function that is called instead of the actual function it represents, to
test that the call to and return from the function are working correctly. - Answer✔stub
The ________ statement causes a function to end and the flow of control to move back to the
point where the function call was made. - Answer✔return
In a function header, in addition to the name of the function, you are required to furnish -
Answer✔a data type for each parameter.
an identifier name for each parameter.
the data type of the return value.
all of the above.
A void function is one that - Answer✔returns no value
Breaking a program up into a set of manageable sized functions is called ________
programming. - Answer✔modular
When used as a parameter, a ________ variable allows a function to access and modify the
original argument passed to it. - Answer✔reference
A function ________ is a statement within the code that causes a function to actually execute. -
Answer✔call
True/False: When you make a function call, the order of the arguments you send does not
matter as long as the number of arguments matches the number of parameters the function
has. - Answer✔False
When more than one function has the same name they are called ________ functions. -
Answer✔overloaded
2|Page
