Vice President Engineering

10+ Vice President Engineering Interview Questions and Answers

Updated 8 Jan 2025
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Q1. You have a 2d array {{1,2},{1,3},{5,6}}. Calculate the sum of elements of 1st position in every array with Java 8.

Ans.

Calculate sum of elements at 1st position in each array using Java 8.

  • Use Java 8 stream to map each array to its 1st element and then sum them up.

  • Example: {{1,2},{1,3},{5,6}} -> 1 + 1 + 5 = 7

Q2. How do you structure services roadmap?

Ans.

I structure the services roadmap by prioritizing based on business goals, technology trends, and customer needs.

  • Identify business goals and objectives

  • Analyze technology trends and advancements

  • Gather feedback from customers and stakeholders

  • Prioritize services based on impact and feasibility

  • Create a timeline for implementation and deployment

Q3. What is visitor pattern?

Ans.

Visitor pattern is a design pattern where a visitor class is used to perform operations on elements of a data structure.

  • Visitor pattern allows adding new operations to existing classes without modifying them

  • It separates the algorithm from the object structure on which it operates

  • Commonly used in compilers, interpreters, and other complex systems

Q4. What is volatile?

Ans.

Volatile refers to a type of memory storage that is temporary and can change frequently.

  • Volatile memory loses its data when power is turned off, unlike non-volatile memory.

  • Volatile memory is commonly used for temporary storage of data that needs to be quickly accessed and modified.

  • Examples of volatile memory include RAM (Random Access Memory) in computers and cache memory in processors.

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Q5. what is the Tech strategy

Ans.

Our tech strategy focuses on leveraging cutting-edge technologies to drive innovation, efficiency, and scalability.

  • Embrace emerging technologies such as AI, machine learning, and blockchain to enhance product offerings

  • Implement agile development methodologies to increase speed to market and adaptability

  • Invest in robust cybersecurity measures to protect sensitive data and ensure compliance with regulations

  • Foster a culture of continuous learning and improvement to stay ahead of...read more

Q6. Design Thread collector class

Ans.

Thread collector class to manage and organize threads in a system

  • Create a ThreadCollector class with methods to add, remove, and retrieve threads

  • Implement a data structure like a list or queue to store the threads

  • Ensure thread safety by using synchronization mechanisms like locks or semaphores

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Q7. Sql query to remove duplicates

Ans.

Use the DISTINCT keyword in a SELECT statement to remove duplicates from a table.

  • Use the SELECT DISTINCT statement to retrieve unique rows from a table.

  • For example: SELECT DISTINCT column_name FROM table_name;

  • Another way is to use the GROUP BY clause with the COUNT() function to remove duplicates.

  • For example: SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name;

Q8. Roadmap structure and priorities

Ans.

Roadmap structure and priorities are crucial for successful engineering leadership.

  • Develop a clear roadmap outlining short-term and long-term goals

  • Prioritize projects based on impact, resources, and timelines

  • Regularly review and adjust roadmap to align with company objectives

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Q9. LLD for Parking Lot System

Ans.

Design the Low Level Design (LLD) for a Parking Lot System

  • Divide the system into modules like parking lot, vehicle, ticket, payment, etc.

  • Define the classes and their relationships, such as ParkingLot, Vehicle, Ticket, Payment

  • Include methods for functionalities like parking a vehicle, issuing a ticket, processing payment

  • Consider scalability and performance aspects in the design

  • Implement data structures like queues for managing parking spots

Q10. Design Parking System

Ans.

Design a parking system for efficient and organized parking.

  • Consider different types of parking spaces (e.g. regular, compact, handicap)

  • Implement a ticketing system for tracking parked cars

  • Incorporate sensors for real-time monitoring of available spaces

  • Include a payment system for paid parking spots

  • Design a user-friendly interface for drivers to easily find parking spots

Q11. Crawler Design Problem

Ans.

Design a web crawler to efficiently crawl and index web pages.

  • Consider using a breadth-first or depth-first search algorithm to traverse the web pages.

  • Implement a system to handle duplicate content and avoid infinite loops.

  • Use a priority queue to prioritize which pages to crawl next based on relevance or importance.

  • Include a mechanism to handle dynamic content and JavaScript-rendered pages.

  • Optimize the crawler for speed and efficiency by parallelizing requests and minimizing ...read more

Q12. Internals of hashMap

Ans.

HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.

  • HashMap internally uses an array of linked lists to store key-value pairs.

  • When a key-value pair is added, the key is hashed to determine the index in the array where the pair will be stored.

  • If multiple keys hash to the same index, a linked list is used to handle collisions.

  • HashMap allows null keys and values, but only one null key.

  • Example: HashMap map = new HashMa...read more

Q13. Previous tech stack

Ans.

Previous tech stack included Java, Spring Boot, Angular, and AWS.

  • Java

  • Spring Boot

  • Angular

  • AWS

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