Intel Senior Data Scientist Interview Questions and Answers

Q1. 1. Os vitualization is asked based on your resume
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Q2. 2. C pointes 3. hasmap
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Q3. 4. Questions based on your resume
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2 hours Hackerrank test, after qualifying that 2 technical rounds and 1 HR round

Q1. 1. Dynamic Programming Question to get the min path.
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Q2. 2. Bit manipulation questions, like find missing number in an range.
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Q1. What is ladder logic programming language, and how is it utilized in the context of programmable logic controllers (PLC), specifically in relation to Start-Delta ladder logic?
Ans. 
Ladder logic is a graphical programming language for PLCs, used for industrial automation, including Start-Delta motor control.
• Ladder logic resembles electrical relay logic diagrams, making it intuitive for electricians.

• It consists of rungs that represent control logic, with vertical rails representing power supply.

• Start-Delta control is a method to reduce the starting current of large motors by initially connecting th...read more
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Q2. What are pneumatic valves, and how do they function within a pneumatic system? Please include a diagram.
Ans. 
Pneumatic valves control airflow in pneumatic systems, regulating pressure and directing movement of actuators.
• Pneumatic valves can be manually operated or automated.

• Common types include solenoid valves, directional control valves, and pressure relief valves.

• They are used in applications like robotics, manufacturing, and automation.

• Example: A 5/2 valve directs air to extend or retract a cylinder.
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Q3. What are MTTR, MTBF, and OEE, and can you provide examples of each?
Ans. 
MTTR, MTBF, and OEE are key metrics for measuring equipment performance and reliability in various industries.
• MTTR (Mean Time to Repair): Average time taken to repair a failed component. Example: If a machine takes 2 hours to fix on average, MTTR is 2 hours.

• MTBF (Mean Time Between Failures): Average time between failures of a system. Example: If a machine operates for 1000 hours before failing, MTBF is 1000 hours.

• OEE (...read more
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Case study about some machine learning project which i did in thr past.

Q1. Explain your recent projects from your resume
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Q1. Add a node to the head of linked list
Ans. 
To add a node to the head of a linked list, create a new node, set its next pointer to the current head, and update the head pointer to the new node.
• Create a new node with the desired data

• Set the new node's next pointer to the current head of the linked list

• Update the head pointer to point to the new node
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Q1. Move the 4 cubes from middle of the screen to left, right, bottom and top. Also, it should keep rotating and stop rotation once it reaches there.
Ans. 
Move rotating cubes to different positions on screen and stop rotation once reached.
• Create 4 animations to move each cube to left, right, bottom, and top of the screen

• Add rotation animation to each cube

• Stop rotation animation once cube reaches the desired position
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Q2. 2 logical questions where asked.
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Q1. How would I integrate/embed Unity application into Android.
Ans. 
Integrating Unity application into Android involves exporting the Unity project as an Android project and then integrating it with Android Studio.
• Export the Unity project as an Android project

• Import the project into Android Studio

• Modify the Android manifest file to include necessary permissions and settings

• Integrate UnityPlayerActivity into the Android application

• Build and run the Android application on a device or emu
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Q2. Interviewer checked my debugging skills
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Q1. Invert bits of a number
Ans. 
Invert the bits of a given number
• Use bitwise XOR operator (^) with 1 to flip each bit

• Repeat the process for all bits in the number

• Return the inverted number
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Q2. How do you support backward compatibility whiel designing a system
Ans. 
Backward compatibility can be supported by using versioning, deprecation strategies, and maintaining clear communication with users.
• Use versioning to clearly distinguish between different versions of the system

• Implement deprecation strategies to phase out old features gradually

• Maintain clear communication with users about upcoming changes and provide migration paths

• Consider using compatibility layers or adapters to bri...read more
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Q1. Pointer related questions.
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Q2. Basic puzzles
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Some question on memory management and some puzzles.

Problems related to pointer like in this scenario what should be the output etc.