Maersk Interview Questions, Process, and Tips

Find the largest subsequence in a given string.

• Iterate through the string and keep track of the current subsequence length

• Update the length when encountering a character that is greater than the previous character

• Return the longest subsequence found

Lifetime scopes in .Net refer to the lifespan of objects managed by a dependency injection container.

• Lifetime scopes define how long an object should exist within the container

• Common lifetime scopes include transient, singleton, scoped

• Transient objects are created each time they are requested

• Singleton objects are created once and reused for the lifetime of the application

• Scoped objects are created once per request or s

Some of the new features in .Net 7 include performance improvements, new language features, and enhanced tooling.

• Performance improvements such as faster startup times and reduced memory usage

• New language features like records, top-level statements, and pattern matching enhancements

• Enhanced tooling with improved support for Visual Studio and Visual Studio Code

• Support for ARM64 architecture and WebAssembly

• Improved suppor...read more

Kafka is a distributed streaming platform used for building real-time data pipelines and streaming applications.

• Kafka is designed to handle high-throughput, fault-tolerant, and scalable real-time data streams.

• It allows for the publishing and subscribing to streams of records, similar to a message queue.

• Kafka is often used for log aggregation, stream processing, event sourcing, and real-time analytics.

• It provides durabi...read more

Design a scalable system like Instagram for sharing photos and videos

• Use a distributed architecture with multiple servers for handling user uploads, storage, and retrieval

• Implement a content delivery network (CDN) for fast delivery of media content to users worldwide

• Utilize a database system for storing user data, media metadata, and relationships between users and content

• Incorporate caching mechanisms to improve perfo...read more

Microservices architecture using Docker containers and Kubernetes for scalability and flexibility.

• Utilizing microservices to break down the application into smaller, independent services

• Using Docker containers for easy deployment and scalability

• Leveraging Kubernetes for orchestration and management of containers

I have contributed to open source projects, participated in hackathons, and regularly attend tech meetups.

• Contributed to open source projects such as GitHub repositories

• Participated in hackathons to develop new software solutions

• Regularly attend tech meetups to stay updated on industry trends

Familiarity with different Azure services is essential for a Software Engineer III role.

• Understanding of Azure Virtual Machines for scalable computing

• Knowledge of Azure Blob Storage for storing large amounts of unstructured data

• Experience with Azure Functions for serverless computing

• Familiarity with Azure SQL Database for relational database management

• Understanding of Azure Cognitive Services for AI and machine learnin

Scaling the application involves optimizing performance, increasing capacity, and ensuring reliability.

• Implementing load balancing to distribute traffic evenly across multiple servers

• Using caching mechanisms to reduce database load and improve response times

• Utilizing horizontal scaling by adding more servers to handle increased traffic

• Optimizing database queries and indexes for faster data retrieval

• Implementing microse...read more