Computer Science and Engineering Assessment

Company: Kickdrum mcq_24sep

Difficulty: medium

Problem Statement

Question 1

What happens when the provided C++ code snippets (double free, uninitialized delete, delete NULL) are compiled and executed?

Question 2

Which of the following steps will reduce hallucinations and ground LLM answers in internal company data?

Question 3

Given a table Sales with 3 rows, what is the value of SUM(Price * Quantity) multiplied by the number of rows?

Question 4

At which OSI layer do FTP and SSH protocols primarily operate?

Question 5

What is the time complexity of the provided function where j is initialized outside the loop and only increments?

Question 6

What is the output of the following C++ code? #include <iostream> using namespace std; class A { public: void fun() { cout << "Base" << endl; } }; class A1: public A { }; class A2: public A { }; class A3: public A1, public A2 { }; int main() { A3* obj = new A3(); obj->fun(); return 0; }

Question 7

Which index would be most beneficial for optimizing a join query with a range filter on salary and a filter on location?

Question 8

Which prompt engineering technique is most effective for generating valid SQL queries for complex business logic?

Question 9

Which aspect of the described transactional scenario violates ACID principles?

Question 10

What is the output of this code (assuming char is unsigned or as per standard problem interpretation)? #include <cstdio> int main() { char c = 255; if (c > 10) printf("c = %d, which is greater than 10\n", c); else printf("c = %d, which is less than 10\n", c); return 0; }

Question 11

What is the most effective optimization for a slow COUNT(*) query with a WHERE clause on a specific column?

Question 12

Which prompt modification is most effective for improving LLM-generated test case structure and coverage?

Question 13

Which network topology provides the highest level of fault tolerance?