Everest Engineering Interview Questions and Answers

Find shortest path with maximum weight out of multiple paths.

Q1. Twitter design with effective image storage
Ans. 
Twitter can use cloud storage services like AWS S3 for effective image storage.
• Twitter can use a CDN to distribute images globally.

• Images can be compressed and optimized for faster loading.

• Twitter can implement lazy loading to improve page speed.

• Users can be given the option to upload images directly to cloud storage services like AWS S3.

• Twitter can use image recognition technology to automatically tag and categorize i
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Q1. Microservice testing support in Springboot and other ways
Ans. 
Springboot provides various testing tools for microservices
• SpringBootTest for integration testing

• MockMvc for testing REST endpoints

• MockBean for mocking dependencies

• TestRestTemplate for testing REST endpoints

• WireMock for testing external services

• JUnit and Mockito for unit testing

• Use Docker for testing in a containerized environment
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Q2. Logging and tracing in distributed application
Ans. 
Logging and tracing are essential for debugging and monitoring distributed applications.
• Use a centralized logging system to collect logs from all nodes in the distributed system.

• Include unique identifiers in log messages to enable tracing of requests across multiple nodes.

• Use log aggregation tools like ELK stack or Splunk to analyze and visualize logs.

• Consider using distributed tracing tools like Jaeger or Zipkin to tr...read more
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Delivery Optimisation and Discount calculation

Q1. Resume based and questions and low level design
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Q1. Resume based questions and High level design
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Take home CLI app assignment

Provided with 2 set of problem statement and candidate can choose 1 of them.