Complete Modern C++ - Reference

Complete Modern C++ - Reference

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

This lecture covers the concept of references in C programming, explaining their importance and how they serve as alternative names for variables. It details the creation and initialization of references, emphasizing that they must always be initialized with a variable. The lecture also compares references with pointers, highlighting key differences such as memory allocation, nullability, and binding behavior. The session concludes with a call to practice using references and pointers through examples.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is required when creating a reference in C?

A constant

A literal value

An initializer

A pointer

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a reference differ from a pointer in terms of memory allocation?

Both allocate the same amount of memory

A reference allocates new memory

A pointer does not allocate memory

A reference does not allocate new memory

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when you modify the value of a referent?

Both the referent and reference change

Neither changes

Only the referent changes

Only the reference changes

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What error occurs if a reference is not initialized?

Compilation error

Logical error

Runtime error

Syntax error

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is true about a reference?

It is just another name for a variable

It can be null

It can be re-bound to another variable

It requires its own storage

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you access the value inside a reference?

Using the address-of operator

Directly, without any operator

Using the dereference operator

By copying the value

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key difference between a reference and a pointer?

A reference can be null

A pointer cannot be null

A reference can point to different variables

A pointer can point to different variables

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