Surveyaan Interview Questions and Answers

2 Leetcode medium questions

Q1. How do you handle large datasets using MongoDB?
Ans. 
Handle large datasets in MongoDB by sharding, indexing, and using aggregation pipelines.
• Use sharding to distribute data across multiple servers for horizontal scaling.

• Create indexes on frequently queried fields to improve query performance.

• Utilize aggregation pipelines for complex data processing and analysis.

• Consider using MongoDB Atlas for managed sharding and scaling capabilities.
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Q2. Differentiate between Horizontal and Vertical Scaling.
Ans. 
Horizontal scaling involves adding more machines to distribute load, while vertical scaling involves increasing resources on a single machine.
• Horizontal scaling adds more machines to handle increased load

• Vertical scaling increases resources on a single machine

• Horizontal scaling is more cost-effective and easier to implement

• Vertical scaling may have limitations in terms of scalability

• Example: Adding more servers to a we...read more
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Q3. Explain 4 pillars of oops.
Ans. 
The 4 pillars of OOP are Inheritance, Encapsulation, Abstraction, and Polymorphism.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation restricts access to certain components of an object, protecting its integrity.

• Abstraction hides complex implementation details and only shows the necessary features.

• Polymorphism allows objects to be treated as instances of their parent class, e...read more
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Q1. Why you are a good fit for this role?
Ans. 
I am a good fit for this role because of my strong technical skills, passion for software development, and ability to work well in a team.
• Strong technical skills in programming languages such as Java, C++, and Python

• Passion for software development demonstrated through personal projects and internships

• Ability to work well in a team environment, collaborating with colleagues to solve complex problems
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Q2. Tell me an event when you showed Team Management.
Ans. 
During a group project in college, I successfully delegated tasks, set deadlines, and ensured everyone's contributions were integrated seamlessly.
• Assigned specific tasks to team members based on their strengths and interests

• Held regular check-in meetings to track progress and address any issues

• Encouraged open communication and collaboration among team members

• Resolved conflicts and ensured everyone's opinions were heard...read more
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