
Arduino Pointer and Array Concepts

Quiz
•
Education
•
12th Grade
•
Hard
Hafizul Hasmie
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a pointer in Arduino?
A pointer in Arduino is a type of sensor
A pointer in Arduino is used for wireless communication
A pointer in Arduino is a variable that stores the memory address of another variable.
A pointer in Arduino is a type of display screen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you initialize an array in Arduino?
int myArray(5) = {1, 2, 3, 4, 5};
int myArray[] = {1, 2, 3, 4, 5};
int myArray = {1, 2, 3, 4, 5};
int myArray[5] = {1, 2, 3, 4, 5};
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain pointer arithmetic in Arduino with an example.
In Arduino, if we have an integer pointer 'ptr' pointing to address 1000, incrementing 'ptr' by 1 will move it to address 1002 (assuming integers are 2 bytes).
Pointer arithmetic in Arduino involves multiplying the pointer value by a constant factor
In Arduino, pointer arithmetic is not supported
Incrementing a pointer in Arduino will always move it to the next memory address
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are some common array manipulation techniques used in Arduino?
Multiplying array elements
Reversing arrays
Iterating through arrays, accessing elements by index, modifying array elements, sorting arrays, searching for specific values
Concatenating arrays
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Discuss the differences between pointers and arrays in Arduino.
Arrays can only store one type of data, while pointers can store multiple types.
Pointers store memory addresses, while arrays store collections of variables.
Arrays store memory addresses, while pointers store collections of variables.
Pointers and arrays are interchangeable in Arduino.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can dynamic memory allocation be achieved in Arduino?
Using functions like malloc(), calloc(), realloc(), and free()
Using new() and delete() functions
Using stack memory only
Using static memory allocation functions
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of pointers in Arduino programming?
Pointers provide a way to work with memory addresses directly, which is crucial for tasks like accessing hardware registers and optimizing memory usage.
Pointers are used to store large amounts of data in Arduino programming.
Pointers are used for creating graphical interfaces in Arduino programming.
Pointers are only relevant for advanced users and not necessary for beginners in Arduino programming.
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