
Quiz Pre test chapter 4
Quiz
•
Computers
•
University
•
Practice Problem
•
Hard
Idris Mobin
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of using arrays in computer programming?
To create complex mathematical calculations
To organize related data elements for easy sorting and searching
To improve program execution speed
To reduce memory usage in programs
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In C++, if an array is declared as float scores[25], what is the valid range of index values?
1 to 25
0 to 24
0 to 25
1 to 24
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When initializing an array during declaration, what happens if you provide fewer values than the array size?
The program will generate an error
The remaining elements will be filled with random values
The remaining elements will be automatically filled with zeros
The compiler will reject the initialization
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a two-dimensional array declaration int matrix[4][3], what does the first number in brackets represent?
The number of columns
The total number of elements
The number of rows
The starting index
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the correct way to access the last element in an array named numbers with size 10?
numbers[10]
numbers[9]
numbers[-1]
numbers[sizeof(numbers)]
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you declare an array without initializing its elements?
Elements are automatically initialized to zero
Elements contain garbage values
Elements are initialized to null
The program won't compile
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a two-dimensional array, how are elements stored in memory?
In random order
In separate memory segments
In a row-major order (row by row)
In column-major order (column by column)
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