Computer Programming Language Quiz

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| By Samarthmishra95

Samarthmishra95

Community Contributor

Quizzes Created: 1 | Total Attempts: 533

Questions: 10 | Attempts: 533 | Updated: Mar 21, 2023

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Computer Programming Language Quiz - Quiz

. Hi,
Seeing you guys so enthusiastic about the preparation for the club recruitment. I have prepared a small quiz as to how you'll be asked during the club about the tech stuff like - C aptitude and logical reasoning and Simple Puzzles - General and Mathematics.
Lastly I added a question which will be necessarily asked in every recruitment so answer that as well.
There is a time limit of 20 mins to keep that in mind. Don't worry about the points :P Couldn't remove that feature.
Note that : ONLY ONE ATTEMPT IS ALLOWED
Cheers!
Best,
Samarth Mishra

Questions and Answers

1.

It's a simple question that'll be asked in every club.Why do you want to join a club?
2.

What is output?# include <stdio.h> void print(int arr[]){ int n = sizeof(arr)/sizeof(arr[0]); int i; for (i = 0; i < n; i++) printf("%d ", arr[i]);} int main(){ int arr[] = {1, 2, 3, 4, 5, 6, 7, 8}; print(arr); return 0;}
- A.
  
  1,2,3,4,5,6,7,8
- B.
  
  Compilation Error
- C.
  
  1
- D.
  
  Runtime Error
Correct Answer
C. 1

Explanation
The program defines a function called print that takes an array as an argument. Inside the print function, the size of the array is calculated by dividing the total size of the array by the size of each element. Then, a for loop is used to iterate over the elements of the array and print each element. In the main function, an array of integers is declared and initialized with values. The print function is called with this array as an argument. Since the array has 8 elements, the for loop in the print function will iterate 8 times and print each element of the array. Therefore, the output of the program will be 1, 2, 3, 4, 5, 6, 7, 8.

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3.

Predict the output of below program:#include int main(){ int arr[5]; // Assume base address of arr is 2000 and size of integer is 32 bit printf("%u %u", arr + 1, &arr + 1); return 0;}
- A.
  
  2004 2020
- B.
  
  2004 2004
- C.
  
  2004 Garbage value
- D.
  
  The program fails to compile because Address-of operator cannot be used with array name
Correct Answer
A. 2004 2020

Explanation
The program prints the memory addresses of two different elements in the array. The expression "arr + 1" gives the address of the second element in the array, which is 2004. The expression "&arr + 1" gives the address of the next memory block after the entire array, which is 2020.

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4.

Consider the following declaration of a ‘two-dimensional array in C:char a[100][100]; Assuming that the main memory is byte-addressable and that the array is stored starting from memory address 0, the address of a[40][50] is
- A.
  
  4040
- B.
  
  4050
- C.
  
  5040
- D.
  
  5050
Correct Answer
B. 4050

Explanation
The given declaration of a two-dimensional array in C, char a[100][100], indicates that the array has 100 rows and 100 columns. Since the array is stored starting from memory address 0, to find the address of a[40][50], we need to calculate the offset based on the size of each element. In this case, each element is a char, which typically takes 1 byte of memory. Therefore, the offset for 40 rows would be 40 * 100 * 1 = 4000 bytes, and the offset for 50 columns would be 50 * 1 = 50 bytes. Adding these offsets to the base address 0 gives us the address of a[40][50] as 4050.

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1
0
5.

Output of following program?#include <stdio.h>int main(){ int i = 5; printf("%d %d %d", i++, i++, i++); return 0;}
- A.
  
  7 6 5
- B.
  
  5 6 7
- C.
  
  7 7 7
- D.
  
  Compiler Dependent
Correct Answer
D. Compiler Dependent
6.

Consider the following C functionvoid swap (int a, int b){ int temp; temp = a; a = b; b = temp;}
- A.
  
  Call swap(x,y)
- B.
  
  Call swap(&x,&y)
- C.
  
  Swap(x,y) cannot be used as it does not return any value
- D.
  
  Swap(x,y) cannot be used as the parameters are passed by value
Correct Answer
D. Swap(x,y) cannot be used as the parameters are passed by value

Explanation
The explanation for the given correct answer is that the function swap(x,y) cannot be used because the parameters are passed by value. In C, when a function is called, the values of the arguments are copied into the function parameters. Therefore, any changes made to the parameters inside the function will not affect the original variables that were passed as arguments. In order to modify the original variables, the function should be called using their addresses, as shown in the second option (swap(&x,&y)).

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7.

Which is the quickest sorting technique out of the following?(Random dataset)
- A.
  
  Merge Sort
- B.
  
  Bubble Sort
- C.
  
  Insertion Sort
- D.
  
  Bucket Sort
Correct Answer
A. Merge Sort

Explanation
Merge Sort is the quickest sorting technique out of the given options for a random dataset. Merge Sort has a time complexity of O(n log n), which means it can efficiently sort large datasets. It uses a divide and conquer approach, dividing the dataset into smaller subproblems and then merging them back together in a sorted manner. In comparison, Bubble Sort and Insertion Sort have a time complexity of O(n^2), making them slower for large datasets. Bucket Sort, although efficient for certain datasets, may not be the quickest for a random dataset as it depends on the distribution of the data.

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8.

Correct Answer
19
9.

Replace the ? by the correct Mathematics symbol to make the expression true18 ? 12 ? 4 ? 5 = 59Write your answer in the space for the whole expressioneg: 18+12+4+5=59

Correct Answer
18 x 12 / 4 + 5 = 59
10.

If a doctor gives you 3 pills and tells you to take one pill every half hour, how long would it take before all the pills had been taken? How many hours?

Correct Answer
1

Explanation
The question states that a doctor gives you 3 pills and tells you to take one pill every half hour. Since there are 3 pills and you take one pill every half hour, it would take a total of 1 hour to take all the pills.

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1
4 0

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Current Version
Mar 21, 2023

Quiz Edited by
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May 16, 2016

Quiz Created by
Samarthmishra95

Computer Programming Language Quiz

It's a simple question that'll be asked in every club.Why do you want to join a club?

What is output?# include <stdio.h> void print(int arr[]){ int n = sizeof(arr)/sizeof(arr[0]); int i; for (i = 0; i < n; i++) printf("%d ", arr[i]);} int main(){ int arr[] = {1, 2, 3, 4, 5, 6, 7, 8}; print(arr); return 0;}

Predict the output of below program:#include int main(){ int arr[5]; // Assume base address of arr is 2000 and size of integer is 32 bit printf("%u %u", arr + 1, &arr + 1); return 0;}

Consider the following declaration of a ‘two-dimensional array in C:char a[100][100]; Assuming that the main memory is byte-addressable and that the array is stored starting from memory address 0, the address of a[40][50] is

Output of following program?#include <stdio.h>int main(){ int i = 5; printf("%d %d %d", i++, i++, i++); return 0;}

Consider the following C functionvoid swap (int a, int b){ int temp; temp = a; a = b; b = temp;}

Which is the quickest sorting technique out of the following?(Random dataset)

Replace the ? by the correct Mathematics symbol to make the expression true18 ? 12 ? 4 ? 5 = 59Write your answer in the space for the whole expressioneg: 18+12+4+5=59

If a doctor gives you 3 pills and tells you to take one pill every half hour, how long would it take before all the pills had been taken? How many hours?