Medtronic Principal Software Engineer Interview Questions and Answers

Q1. Comparator and Comparable
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Q2. Spring Boot related question
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Python, c++, quans, logical

Q1. Oops, data structure, python
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Q1. What are your strengths and weaknesses?
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Q2. Share details of your previous job.
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Q3. What is your family background?
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Q4. Tell me about yourself.
Ans. 
I'm a passionate software engineer with a strong background in full-stack development and a love for solving complex problems.
• Graduated with a degree in Computer Science from XYZ University.

• Worked at ABC Corp, where I developed a web application that improved user engagement by 30%.

• Proficient in languages like JavaScript, Python, and Java, with experience in frameworks such as React and Django.

• Enjoy collaborating in ag...read more
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Q1. Android basic question
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Q1. Android advance level question
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Experiment based question

Q1. Basic questions regarding OOP
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Q2. Moderate level Leetcode question 179. Largest number
Ans. 
Form the largest number from an array of non-negative integers by concatenating them optimally.
• Convert integers to strings for easy concatenation.

• Sort the strings based on custom comparison: xy vs yx.

• Example: For [3, 30, 34, 5, 9], sorting gives ['9', '5', '34', '3', '30'].

• Join the sorted array to form the largest number: '9534330'.

• Handle edge cases: if the largest number is '0', return '0'.
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Q3. Write a program to demonstrate OOP principles.
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This program demonstrates OOP principles: encapsulation, inheritance, and polymorphism using a simple class structure.
• Encapsulation: Use private variables and public methods to control access. Example: class 'Car' with private 'speed' and public 'accelerate()'.

• Inheritance: Create a base class and derive subclasses. Example: class 'Vehicle' and subclasses 'Car' and 'Bike'.

• Polymorphism: Use method overriding to provide s...read more
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Q4. Diamond problem in OOP
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The diamond problem occurs in OOP when a class inherits from two classes that have a common ancestor, leading to ambiguity.
• Occurs in multiple inheritance scenarios.

• Example: Class A -> Class B, Class A -> Class C, Class B and C both inherit from A.

• Ambiguity arises when accessing methods or properties from the common ancestor.

• Languages like C++ allow multiple inheritance, while Java uses interfaces to avoid this is...read more
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Q1. Asp.Net + C# technicals
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Q1. How do you find the code performance issue in the code deployed in production?
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To find code performance issues in production, use monitoring tools and profiling techniques.
• Use monitoring tools like New Relic, AppDynamics, or Datadog to track performance metrics and identify bottlenecks.

• Use profiling techniques like CPU profiling, memory profiling, and network profiling to pinpoint specific areas of the code that are causing performance issues.

• Analyze logs and error messages to identify patterns a...read more
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Q2. What is asynchronous programming
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Q3. Write a program to change background after every 0.5 sec interval to orange,white,green on button click in Angular?
Ans. 
Program to change background color on button click in Angular
• Create a button in Angular template

• Add click event listener to the button

• Use setInterval() function to change background color after every 0.5 sec

• Use ngStyle directive to change background color dynamically
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Q4. How to load a component only after 3 of my services are loaded?
Ans. 
Use Angular's 'resolve' property to load component after services are loaded.
• Create a resolver service that waits for all three services to complete before resolving.

• Add the resolver service to the 'resolve' property of the component's route.

• Access the resolved data in the component using the ActivatedRoute service.

• Example: { path: 'my-component', component: MyComponent, resolve: { data: MyResolverService } }
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Q5. What is difference between iquerable and ienumrable
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Q6. When you go with entity framework and ado.net
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Entity Framework is an ORM while ADO.NET is a data access technology.
• Entity Framework is easier to use and provides more abstraction than ADO.NET.

• ADO.NET is faster and more flexible than Entity Framework.

• Use Entity Framework for simple CRUD operations and ADO.NET for complex queries and performance-critical applications.
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