Western Digital Internship Interview Experience | On-Campus 2021 (Virtual)

Western Digital visited IGDTUW to hire interns for the role of Firmware Development. There were a total of 3 rounds.

Round 1 (Online Round): It was an Online Aptitude Test with a total of 45 questions to be done in 45 minutes. There were 4 sections 1) Aptitude – 15 questions, 2) C/C++ Programming – 10 questions, 3) DS and OS concepts – 10 questions, 4) Electronics – 10 questions. All sections were mandatory. The marking scheme was +1 for every correct answer and a -0.25 penalty for every wrong answer.

Round 2 (Technical Round - 1 hour 15 minutes): My interview was scheduled for 45 mins but it went for 1 hour 15 minutes. It started with a brief introduction about myself, then the interviewer asked me questions from my resume like about my projects and hobbies. After this, the following questions were asked:

• What are pointers? He asked me to explain them along with the code.
• Difference between structure and unions and their code implementation.
• Question - Bit manipulation – Write a code to replace the 3^rd bit in a binary number 1000 such that the answer is 1000.

Given x = 10100
Take a = 00100 as we have to switch the third bit. 
Now ~a = 11011
x AND a = 10100 & 11011 = 10000 ans.

• What is selection sort?
• What is call by value and call by reference?
• He then asked me to code the following program of Linked List - https://www.geeksforgeeks.org/problems/segregate-even-and-odd-nodes-in-a-linked-list5035/1
• Why we use the C language in hardware programming?
• In the end, he gave me a puzzle - https://www.geeksforgeeks.org/aptitude/puzzle-12-maximize-probability-of-white-ball/

Round 3 (Technical + HR round - 45 mins): It again started with a brief introduction and discussion about my projects. Then the interviewer asked me:

• About my technical and non-technical skills.
• He again discussed the coding question I did in the last interview.
• What is a circular queue? How it is implemented? He then asked me about traversal and deletion in a circular queue.
• What are scheduling algorithms in OS?
• How many programming languages I have worked on? How would I rate myself in C/C++ (out of 10)?
• Then he asked what it is to be a part of a team?
• What do I know about the company?

Result: Selected

Tips for preparing for Western Digital

• Practice coding in C language.
• Have a good understanding of Linked Lists.
• Remember the corporate values of WD: Think big, Do it together, Make it happen.