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PPS MCQs - Unit-2
1. What is an array in C?
A . A data structure that can hold multiple data types.
B . A collection of elements with the same data type.
C . A mathematical function.
D . A loop construct.
2. How do you declare a one-dimensional array of integers in C?
A . int[] myArray;
B . array<int> myArray;
C . int myArray[];
D . array myArray;
3. How do you access the third element of a one-dimensional array myArray in C?
A . myArray[2]
B . myArray[3]
C . myArray[1]
D . myArray(3)
4. In a two-dimensional array, how would you access the element in the second row and third column?
A . array[2][3]
B . array[1][2]
C . array(2,3)
D . array[3][2]
5. What will be the output of the following code? int arr[3] = {10, 20, 30}; printf("%d", arr[1]);
A . 10
B . 20
C . 30
D . None of the above
6. What will the following code print? int arr[3][2] = {{1, 2}, {3, 4}, {5, 6}}; printf("%d", arr[1][1]);
A . 2
B . 3
C . 4
D . 5
7. what is the size of an integer array declared as int arr[5] in bytes?
A . 14
B . 20
C . 4
D . 5
8. Which of the following correctly calculates the total number of elements in a one-dimensional array arr declared as int arr[5];?
A . sizeof(arr) / sizeof(arr[0])
B . sizeof(arr)
C . arr.size()
D . None of the above
9. What happens if you try to access an array element with an index greater than its size in C?
A . It returns a default value
B . It causes a segmentation fault
C . It wraps around to the start of the array
D . None of the above
10. What is a two-dimensional array?
A . An array that can store only two elements.
B . An array of arrays, organized in rows and columns.
C . An array with two data types.
D . A data structure to hold strings.
11. Comment on an array of the void data type.
A . It can store any data-type
B . It only stores element of similar data type to first element
C . It acquires the data type with the highest precision in it
D . You cannot have an array of void data type
Fill in the Blanks
12. An array is a collection of items stored at __________ in memory.
13. In C, the index of the first element in an array is __________.
14. The syntax to access the fifth element of an array named arr is __________.
15. To declare a two-dimensional array in C, you use two sets of __________.
16. The size of a one-dimensional array must be defined during __________.
17. To find the number of elements in an array arr, the expression is __________.
18. In C, if you attempt to access an index that is out of bounds, it can lead to __________.
19. The process of iterating through an array to access or modify each element is called __________.
20. To access the first element of a two-dimensional array arr, you use the syntax __________.
Relevant Materials :
☞ PPS MCQs - Unit-1 - [ PPS ]
☞ PPS MCQs - Unit-2 - [ PPS ]
☞ PPS MCQs - Unit-3 - [ PPS ]
☞ PPS MCQs - Unit-4 - [ PPS ]
☞ PPS MCQs - Unit-5 - [ PPS ]
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