IBM ISDL Interview Experience

International Business Machines Corporation(IBM) is an American multinational technology company.

Recruitment Process

• Written Test
• Coding Test
• Technical Interview
• HR interview

Written Test

The test is conducted online. The written test consists of 3 coding questions and multiple-choice questions on data structures, pseudocodes, Linux commands, operating systems, and computer networks. The test lasted for 81 minutes and the level of difficulty for both the coding and multiple-choice questions is medium to hard. You can easily solve the coding questions if you have basic problem-solving skills and attempt the multiple-choice questions easily if you have core knowledge in operating systems, computer networks, and data structures.

Coding Test

The test will be conducted at Malla Reddy College in Hyderabad. The coding test comprises three coding questions, one of which involves bit manipulation. I can’t recall the other two questions. To advance to the next round, we must pass all the test cases for at least one question. The difficulty level is high, and while we can pass some of the test cases using brute force approaches, we need to employ optimized approaches to solve all the test cases.

Technical Interview

• The interview lasts for 30 minutes. Be confident while answering the questions.
• Introduce Yourself
• Given a string asked to return the count of capitals, smalls and speical characters.
• Python vs Java
• Asked to write a class for reading data or filename and create different objects for that
• Asked to create a dictionary from lists(name, sno, CGPA) where key is sno
• Asked to write code to remove duplicate elements from the list
• Asked what is deadlocks and how to avoid them
• What is semaphores
• What is Synchronisation
• What is Paging, virtual memory

HR interview

• Asked about IBM
• Preferred location
• Asked about Favourite subject
• Code for node creation
• Asked to write the code for find the middle element of the linked list