Micron Technology Interview Questions and Answers

Q1. DSA question on stacks
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Q2. DSA questions on linked lists
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Q3. Introduction on where you are from
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Q4. Friendly chat on the location
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Q5. Behavioural questions on certain situations
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Nearly 90 questions. 1.30 hr.

Q1. Explain CMOS inverter?
Ans. 
CMOS inverter is a type of digital logic gate that implements logical NOT operation.
• CMOS inverter consists of a PMOS transistor connected in series with an NMOS transistor.

• When input is high, PMOS conducts and NMOS is off, output is low.

• When input is low, NMOS conducts and PMOS is off, output is high.

• CMOS inverters are widely used in digital circuits for logic operations.

• Example: Inverter gate in a CMOS technology-base...read more
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Q2. Coding question based on min distance from top to bottom in a pyramid.
Ans. 
Calculate the minimum path sum from top to bottom in a pyramid structure of numbers.
• Use dynamic programming to store minimum sums at each level.

• Start from the second last row and move upwards, updating each element.

• Example: For pyramid [[2], [3, 4], [6, 5, 7], [4, 1, 8, 3]], the min path is 11 (2 -> 3 -> 5 -> 1).

• The final result will be the top element after processing all rows.
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Q1. Very Easy sql questions
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Q2. Very eeasy basic python question
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Q3. Arey bhai access karne de
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Online assesment aptitude, 3 SQL questions, 2 easy DSA coding questions.
2d square grid traversal

Q1. SQL only Window functions, case switch statements, remove duplicate from table, aggregate functions If you are good at python plus points If you have basic idea/previous work experience with GCP you can ...read more
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Q1. Goals, where do see your self in 4 years(say that you will work at micron for a long time, don't say shit like I want to pursue higher studies) What does success mean to you
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Q1. Write a spark program to find the word with maximum length in a given string
Ans. 
Use Spark program to find word with maximum length in a given string
• Split the string into words using space as delimiter

• Map each word to its length

• Find the word with maximum length using reduce operation
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Q2. Write an sql query to change rows into columns and vice versa
Ans. 
Use SQL pivot function to change rows into columns and vice versa
• Use the PIVOT function in SQL to transform rows into columns

• Use the UNPIVOT function in SQL to transform columns into rows

• Example: SELECT * FROM table_name PIVOT (SUM(value) FOR column_name IN (value1, value2, value3))

• Example: SELECT * FROM table_name UNPIVOT (value FOR column_name IN (value1, value2, value3))
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Q3. Write an sql query to fetch duplicate rows in a table
Ans. 
SQL query to fetch duplicate rows in a table
• Use GROUP BY and HAVING clause to identify duplicate rows

• Select columns to check for duplicates

• Example: SELECT column1, column2, COUNT(*) FROM table_name GROUP BY column1, column2 HAVING COUNT(*) > 1;
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Q4. Diff between repartition and colaesce, clustering and partitioning in bq
Ans. 
Repartition increases or decreases the number of partitions in a DataFrame, while coalesce only decreases the number of partitions. Clustering is used for organizing data within a partition, while partitioning is dividing data into logical units.
• Repartition increases or decreases the number of partitions in a DataFrame, which can be useful for parallelism and performance optimization.

• Coalesce only decreases the number ...read more
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Q1. Design SW timer library that handles multiple clients and HW supports 1us granularity.
Ans. 
Design a software timer library for multiple clients with 1us granularity support.
• Use a priority queue to manage timers based on expiration time.

• Implement a callback mechanism for clients to receive notifications.

• Support multiple timer types: one-shot, periodic, and delayed timers.

• Ensure thread safety for concurrent access from multiple clients.

• Provide an API for clients to create, cancel, and query timers.
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Q2. Sliding window pattern questions.
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Q1. Basic concepts about OOPs and asked to code examples of polymorphism
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Q2. Asked to write down SQL queries based on scenario
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Q3. Discussion on docker and frontend.
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Q4. My interview went nice. I nearly got all answers. But my resume was more OS related and it didn't matched with their requirements
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