Whether you're an experienced expert hoping for a senior position or a newbie just starting out, preparing for computer science interview questions might feel intimidating. 

To help you prepare, we've put up a list of the top 50 computer science interview questions and answers in this guide. This list will help you be ready for both the technical and HR parts of the interview process, including anything from simple computer science questions to more complex problem-solving exercises. You will feel more prepared and confident to handle any interview if you go over these CSE interview questions. 

We will continue to examine computer science interview questions and responses, offering advice to help you confidently and successfully prepare.

These top 50 computer science interview questions will be divided into categories like 

Basic Computer Questions for Interview

  1. An operating system: what is it?
  2. What is a compiler?
  3. Describe the distinction between ROM and RAM.
  4. data structure: what is it?
  5. What distinguishes a thread from a process?

Computer Science Fundamentals Interview Questions

  1. Explain OOP concepts.
  2. What is polymorphism?

    8. Define encapsulation and abstraction.
  3. Explain the difference between a stack and a queue.
  4. What is recursion?

Programming and Coding-Based Questions

  1. To reverse a string, write a program.
  2. Describe how pointers work in C.
  3. What is the allocation of dynamic memory?
  4. How does Java handle memory?
  5. What are decorators in Python? 

Database Management and SQL Questions

  1. What is normalisation?
  2. Describe the characteristics of ACID.
  3. The distinction between a left join and an inner join.
  4. How are SQL queries optimised?
  5. What are a foreign key and a main key? 

Networking Questions

  1. What is IP addressing?
  2. Difference between TCP and UDP.
  3. What is DNS?
  4. Explain HTTP and HTTPS.
  5. What are firewalls?

Software Engineering and System Design

  1. What is SDLC?
  2. Explain Agile methodology.
  3. What is version control?
  4. How does Git work?
  5. Difference between functional and non-functional requirements.

Data Structures & Algorithms

  1. Explain time and space complexity.
  2. What is a linked list?
  3. What is the process of binary search?
  4. The distinction between a linked list and an array. 
  5. What is a hash table?

Advanced Topics

  1. What is cloud computing?
  2. What is machine learning?
  3. Define artificial intelligence.
  4. What is Big Data?
  5. Explain IoT with an example.

Problem-Solving & Logical Thinking Questions

  1. How do you tackle a challenging problem when you don't know the solution right away?
  2. Give an example of a time you had to troubleshoot a problem and the actions you took to fix it.
  3. How do you guarantee the efficacy and maintainability of your solution?
  4. What distinguishes an optimal solution from a brute-force solution?
  5. Could you provide an instance where you had to tackle a coding difficulty by applying "beyond the box" thinking?
  6. When dealing with several challenges at once, how do you prioritise tasks?
  7. What data structures would you use to improve the efficiency of a search operation? 
  8. How can you make sure your algorithm returns accurate results for every input?
  9. How can you deconstruct a large issue into manageable, smaller components?
  10. Could you explain to me how you go about creating a system for an issue you've never seen before?

So kindly prepare for these top 50 computer science interview questions to have a better chance in interviews.

Why Choose K.R. Mangalam University for Computer Science?

  • KRMU's B.Tech CSE program places a lot of emphasis on real-world projects that get students ready for the workforce.
  • Specialised job development facility for resume workshops and practice interviews.
  • Courses with a focus on cloud computing, cybersecurity, AI, and data science. 
  • Strong placement records with top IT companies.

Conclusion 

Keep these top 50 computer science interview questions and pass through any CSE interviews. With the right mix of theory, coding practice, and mentorship from universities like K.R. Mangalam University, students can confidently excel in competitive interviews and build strong tech careers.

FAQs

Q1. What are the most asked CSE interview questions?

Basic data structures, OOPs concepts, and SQL are among the most asked questions.

Q2. How can I prepare for computer science interviews?

Practice coding, study DSA, and review computer science fundamentals interview questions regularly.

Q3. Are these questions helpful for freshers?

Yes, these basic computer questions for interviews are ideal for fresh graduates.

Q4. Does K.R. Mangalam University offers interview preparation support?

Yes, KRMU conducts mock interviews, placement drives, and career training sessions.