Pointer C++ Quiz

Pointer C++ Quiz

10 Qs

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Pointer C++ Quiz

Pointer C++ Quiz

Assessment

Quiz

Computers

Practice Problem

Hard

Created by

Diela Ismail

Used 11+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a pointer in C++?

A pointer in C++ is a variable that holds the memory address of another variable.

A pointer in C++ is a variable that holds the value of another variable.

A pointer in C++ is a keyword used to define a function.

A pointer in C++ is a data type used to store multiple values.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you declare a pointer in C++?

int ptr

ptr int

int *ptr

int* ptr

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a null pointer?

The purpose of a null pointer is to point to a random memory location.

The purpose of a null pointer is to indicate that the pointer is not currently pointing to a valid object or memory location.

The purpose of a null pointer is to indicate that the pointer is pointing to a valid object or memory location.

The purpose of a null pointer is to store a specific value in memory.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you assign a value to a pointer in C++?

int *ptr = #

int *ptr = *num;

int *ptr = &*num;

int *ptr = num;

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between a pointer and a reference in C++?

A pointer and a reference are the same thing in C++.

A pointer can be reassigned to point to different variables, while a reference cannot be reassigned.

A pointer is a variable that holds the memory address of another variable, while a reference is an alias for an existing variable.

A pointer can only be used with primitive data types, while a reference can be used with any data type.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the use of the 'new' operator in C++?

The 'new' operator is used to deallocate memory for objects in C++.

The 'new' operator is used to create a new instance of a class in C++.

The 'new' operator is used to access the member variables of a class in C++.

The 'new' operator is used to dynamically allocate memory for objects in C++.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the use of the 'delete' operator in C++?

The 'delete' operator is used to allocate memory.

The 'delete' operator is used to initialize variables.

The 'delete' operator is used to perform arithmetic operations.

The 'delete' operator is used to deallocate memory.

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