What is the purpose of comments in a C++ program?
Lesson 3 Getting Started with C Programming

Quiz
•
Other
•
12th Grade
•
Hard
IKHTIARUDDIN IKHWAN
Used 3+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To store data
To increase program speed
To describe what the code does
To execute code
Answer explanation
Comments in a C++ program are used to describe what the code does, making it easier for others (and the original author) to understand the logic and purpose of the code. They do not affect execution or performance.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which symbol is used to start a single-line comment in C++?
//
/*
#
--
Answer explanation
In C++, single-line comments start with the symbol '//'. This allows programmers to add notes or disable code on a single line. The other options are used for different types of comments or directives.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the escape sequence '\n' do in a string?
Inserts a backslash
Inserts a space
Inserts a new line
Inserts a tab
Answer explanation
The escape sequence '\n' is used in strings to insert a new line. This means that when it is encountered, the text following it will start on a new line, making it the correct choice among the options provided.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a banner in a C++ program?
A type of error
A variable declaration
A set of comments at the beginning of the program
A function to display output
Answer explanation
In C++, a banner typically refers to a set of comments at the beginning of the program that provides information about the program, such as its purpose, author, and date. This helps in understanding the code better.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a type of error in C++?
All of the above
Syntax error
Logical error
Run-time error
Answer explanation
In C++, errors can be categorized into syntax errors (code mistakes), logical errors (incorrect logic), and run-time errors (issues during execution). Therefore, 'All of the above' is the correct choice as it encompasses all types of errors.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'cout' statement do in C++?
It creates a comment
It declares a variable
It outputs data to the console
It compiles the program
Answer explanation
The 'cout' statement in C++ is used to output data to the console. It is part of the iostream library and allows programmers to display text and variables to the user, making it essential for interactive applications.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which escape sequence is used to display a double quote?
\"
\n
\t
\'
Answer explanation
The escape sequence for displaying a double quote in strings is \", which allows the quote to be included without ending the string. Other options like \n (newline), \t (tab), and \' (single quote) serve different purposes.
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