IBM Research Interview Questions, Process, and Tips

Q1. Discuss about your projects done and questions about them
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Q2. Questions about internals of File system protocol and file systems.
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Q1. They asked Design pattern
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Q2. Good ds and algo problem
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Q3. Questions related to c++
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Q1. Library management system design
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Designing a library management system to efficiently organize and track library resources.
• Utilize a database to store information on books, patrons, and transactions

• Implement a user-friendly interface for librarians to add, edit, and delete records

• Incorporate features such as search functionality, book reservations, and overdue notifications
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Q2. Docker and kubernatic question
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Q1. Basic C questions
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Q2. ARM processor quetions, RTOS
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Q3. What is DMA? Context Switching
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DMA stands for Direct Memory Access, a feature that allows hardware devices to transfer data to/from memory without involving the CPU.
• DMA is used to offload data transfer tasks from the CPU, improving overall system performance.

• Context switching is the process of saving and restoring the state of a CPU so that multiple processes can share the same CPU.

• DMA and context switching are both important concepts in embedded sy...read more
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Q4. What is pipeline in ARM?
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Pipeline in ARM is a technique used to increase the performance of the processor by overlapping the execution of multiple instructions.
• Pipeline allows multiple instructions to be processed simultaneously in different stages of execution.

• It helps in reducing the overall execution time of a program.

• ARM processors typically have a 3-stage pipeline, but some newer designs have more stages for better performance.

• Example: In...read more
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2 coding questions were given. They were pretty basic. Mostly from arrays and strings.

Q1. What do you mean by OOPs
Ans. 
OOPs stands for Object-Oriented Programming, a programming paradigm based on the concept of objects.
• OOPs focuses on creating objects that contain data and methods to manipulate that data.

• Encapsulation, inheritance, and polymorphism are key principles of OOPs.

• Examples of OOP languages include Java, C++, and Python.
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Q2. If the fan is an entity, what are the attributes to it?
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Attributes of a fan include size, speed, power source, noise level, and direction of rotation.
• Size (e.g. diameter of blades)

• Speed (e.g. rotations per minute)

• Power source (e.g. electric, battery)

• Noise level (e.g. decibels)

• Direction of rotation (e.g. clockwise, counterclockwise)
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Q3. Questions based on projects
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Q4. Sorting algorithms
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