Complete Modern C++ - Reference
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Information Technology (IT), Architecture
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University
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Practice Problem
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Hard
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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?
An initializer
A pointer
A literal value
A null value
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a reference differ from a pointer in terms of memory allocation?
A reference requires its own memory allocation
A pointer does not require memory allocation
A reference does not require memory allocation
Both require the same amount of memory
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you modify the value of a referent?
Only the referent changes
Only the reference changes
Both the referent and reference change
Neither changes
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What error occurs if a reference is not initialized?
The program runs with a warning
The reference defaults to null
The reference points to a random memory location
The compiler throws an error
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true about reference binding?
A reference can be re-bound to another variable
A reference is permanently bound to its initial referent
A reference can be null
A reference can be bound to a literal
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement is true about pointers but not references?
Pointers can be initialized to null
Pointers cannot be re-assigned
Pointers do not require memory allocation
Pointers must always have an initializer
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you access the value inside a reference?
By using a special reference operator
By using the dereference operator
By converting it to a pointer
By directly using the reference
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