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Eloelo Senior Devops Engineer Interview Questions and Answers
Eloelo Senior Devops Engineer Interview Experiences
1 interview found
Anonymous
Selected
I applied via LinkedIn and was interviewed before Aug 2022. There were 3 interview rounds.
(1 Question)
- Q1. Technical interview based on experience
(1 Question)
- Q1. Aws Elb and auto scaling
Interview questions from similar companies
Lipika Chugh
Selected
I applied via Campus Placement and was interviewed before Jul 2023. There was 1 interview round.
It was easy 2 question hackerrank exam
I applied via Recruitment Consultant and was interviewed in May 2021. There were 4 interview rounds.
Interview Questionnaire
10 Questions
- Q1. First-round was an online test on hacker rank. There were 4 questions related to the array, string, and tree.
- Q2. Create an immutable class.
- Ans.
An immutable class is a class whose instances cannot be modified after creation.
Make all fields private and final
Don't provide any setter methods
Ensure that any mutable objects passed to the constructor are defensively copied
Make the class final so that it cannot be subclassed
- Q3. Create a Singelton pattern.
- Ans.
Singleton pattern ensures only one instance of a class is created and provides a global point of access to it.
Create a private constructor to prevent direct instantiation of the class.
Create a private static instance of the class.
Create a public static method to access the instance, and create the instance if it doesn't exist.
Ensure thread safety by using synchronized keyword or double-checked locking.
- Q4. Difference between Vector and ArrayList.
- Ans.
Vector is synchronized and ArrayList is not. Vector is thread-safe and ArrayList is not.
Vector is a legacy class and ArrayList is a part of the Java Collection Framework.
Vector is synchronized which means only one thread can access it at a time, while ArrayList is not.
Vector is thread-safe which means it can be used in a multi-threaded environment, while ArrayList is not.
Vector is slower than ArrayList because of synch...
- Q5. Create Linked List without using the internal library and provide the functionality of add delete find.
- Ans.
Create Linked List without using internal library and provide add, delete, find functionality.
Create a Node class with data and next pointer
Create a LinkedList class with head pointer and methods to add, delete, and find nodes
Use a loop to traverse the list and perform operations
Handle edge cases such as adding to an empty list or deleting the head node
- Q6. One question was related to binary search.
- Q7. Few more questions related to java.
- Q8. The architecture of the current system.
- Ans.
The current system follows a microservices architecture.
The system is divided into multiple independent services.
Each service has its own database and communicates with other services through APIs.
The architecture allows for scalability and flexibility.
Examples of microservices used in the system include user authentication, payment processing, and inventory management.
- Q9. Find the total no of the island in a 2d matrix. Working code was required.
- Ans.
Find the total no of islands in a 2D matrix.
Use DFS or BFS to traverse the matrix.
Mark visited cells to avoid repetition.
Count the number of islands found.
- Q10. Find loop in a linked list.
- Ans.
Loop detection in a linked list.
Use two pointers, one moving at twice the speed of the other.
If there is a loop, the faster pointer will eventually catch up to the slower one.
If there is no loop, the faster pointer will reach the end of the list.
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed in Mar 2024. There were 3 interview rounds.
A small app was to be built using recycler view and consuming a given api.
(2 Questions)
- Q1. Activity lifycycle
- Q2. Jetpack compose
(2 Questions)
- Q1. Why are you leaving the current org ?
- Ans.
Seeking new challenges and growth opportunities.
Looking for new challenges and opportunities for growth.
Interested in working with new technologies and tools.
Seeking a more collaborative and innovative work environment.
Want to expand my skill set and knowledge in a different industry.
Current organization lacks career advancement opportunities.
- Q2. Salary expectations
Interview Preparation Tips
Selected
I applied via Recruitment Consulltant and was interviewed in Aug 2023. There were 3 interview rounds.
Asked questions related to Core JS concepts like Output based questions
Asked 2 question on ReactJS development
(1 Question)
- Q1. Managerial round normal discussion on past project and what they are doing in company.
Interview Preparation Tips
I applied via Instahyre and was interviewed in Aug 2024. There were 3 interview rounds.
String and DP questions
(1 Question)
- Q1. Design BookMyShow
(1 Question)
- Q1. Past challenging projects
- Ans.
Developed a real-time data processing system for a high-traffic e-commerce platform.
Implemented distributed computing using Apache Kafka and Spark.
Optimized database queries to handle large volumes of data.
Designed fault-tolerant architecture to ensure system reliability.
Collaborated with cross-functional teams to meet project deadlines.
Selected
I applied via Referral and was interviewed before Mar 2023. There was 1 interview round.
Basic coding test from hackerearth.
Selected
I applied via Recruitment Consulltant and was interviewed before Mar 2022. There were 5 interview rounds.
Mettle Test based on DP based approach
(1 Question)
- Q1. Based on Tree, Graph, Segment Tree
(1 Question)
- Q1. DS algo based on DP, Trees, Graphs
(3 Questions)
- Q1. Systed Design Round 1
- Q2. Design a Distributed Queue to have functionality similar to Kafka.
- Ans.
Design a distributed queue similar to Kafka.
Use a distributed architecture with multiple brokers and partitions.
Implement a publish-subscribe model for producers and consumers.
Ensure fault tolerance and high availability through replication and leader election.
Use a log-based storage system for messages and offsets.
Provide support for message ordering and retention policies.
Implement a scalable and efficient message de...
- Q3. Design Price Tagger System
- Ans.
Design a Price Tagger System
Identify the products to be tagged with prices
Determine the pricing strategy (e.g. cost-plus, value-based, etc.)
Choose the appropriate tagging technology (e.g. barcode, RFID, etc.)
Develop a user-friendly interface for tagging and updating prices
Implement a database to store product and pricing information
Integrate with point-of-sale systems for accurate pricing at checkout
Interview Preparation Tips
Skills evaluated in this interview
(1 Question)
- Q1. Design Search Systems
- Ans.
Designing search systems involves creating efficient algorithms and data structures to quickly retrieve relevant information.
Understand the data structure of the search system (e.g. inverted index, trie)
Implement efficient search algorithms (e.g. binary search, hash tables)
Consider scalability and performance optimization techniques (e.g. caching, indexing)
Include user-friendly features like autocomplete and spell corr...
Skills evaluated in this interview
Senior Software Engineer Interview Questions & Answers
AmbitionBox
KHUSHBOO KUMARI
posted on 24 Jun 2023
Given an simple gaming questions to be developed in JS
Given another UI design in image to be developed
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Eloelo Senior Devops Engineer Interview Process
based on 1 interview
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