FedEx Express Senior Programmer Analyst Interview Questions and Answers

Q1. Basic to intermediate aptitude questions
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Q2. MCQ questions on Machine learning, DS and algo, Web development, Operating systems and DBMS. All basic level
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Q3. Coding round. 1. Tables are given and asked to write SQL and NOSQL queries for given questions 2. 3 coding questions 2 intermediate and 1 hard level questions
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Q1. Explain Tree and Graph Data Structure. How to implement them? I was not asked to write the code but Interviewer just wanted to know i understand the logic behind them.
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Q2. Difference between a application server and webserver. And examples for both.
Ans. 
Application server manages business logic while web server handles HTTP requests.
• Application server executes business logic and manages transactions.

• Web server handles HTTP requests and serves static content.

• Examples of application servers are JBoss, WebSphere, and Tomcat.

• Examples of web servers are Apache, Nginx, and IIS.
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Q3. I was asked about projects done in my college. Technologies I used and why I used them
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Q1. What are your strengths and weaknesses?
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Q2. What is your family background?
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Q3. Tell me about yourself.
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Q4. Why Maersk and what are you looking for at Maersk?
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Q1. Introduce yourself
Ans. 
I am a Senior Software Engineer with 8 years of experience in developing web applications using Java, Spring, and Angular.
• 8 years of experience in software development

• Proficient in Java, Spring, and Angular

• Strong problem-solving skills

• Experience in leading development teams

• Passionate about learning new technologies
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Q2. Build a digital stopwatch with HTML, CSS, JS
Ans. 
Build a digital stopwatch using HTML, CSS, and JS
• Create HTML structure with buttons for start, stop, and reset

• Use CSS to style the stopwatch display

• Implement JS logic to start, stop, and reset the stopwatch
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Q3. What is your day to day work life looks like?
Ans. 
As a Senior Software Engineer, my day-to-day work involves designing and developing software solutions, collaborating with team members, troubleshooting issues, and staying updated on industry trends.
• Designing and developing software solutions based on project requirements

• Collaborating with team members to discuss project progress and brainstorm solutions

• Troubleshooting and debugging code to fix issues and improve perf...read more
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Q4. Horizontal vs vertical scaling
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Horizontal scaling involves adding more machines to distribute load, while vertical scaling involves increasing the power of existing machines.
• Horizontal scaling adds more machines to handle increased load

• Vertical scaling increases the power of existing machines

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

• Vertical scaling may have limitations in terms of hardware capabilities

• Examples: Horizontal sca...read more
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Q5. Load balancer vs API gateway
Ans. 
Load balancer distributes incoming network traffic across multiple servers, while API gateway manages API traffic.
• Load balancer operates at the network layer, distributing traffic based on algorithms like round-robin or least connections.

• API gateway operates at the application layer, providing features like authentication, rate limiting, and caching for APIs.

• Load balancer can balance traffic for any type of application...read more
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Q6. There is a scenario where user wants to upload multiple files at once but provided API can on accept one file at a time, how tackle this scenario gracefully?
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Questions related to DSA, mostly String manipulation,

Q1. System Design, Architecture of current project, enhancements in the performance
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Q1. Mostly Managerial and Behavioral round
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Some leetcode medium problem

System Design and Cloud

Q1. Managerial round casual introduction
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Q1. Salary discussion
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Easy to medium level leetcode or hackerrank problem.

Q1. Hashmap based question
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Q2. Microservice Database design
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Q1. How to build Flutter Applications
Ans. 
Flutter applications can be built using Dart programming language and Flutter SDK.
• Install Flutter SDK and Dart programming language

• Choose an IDE like Android Studio or Visual Studio Code

• Create a new Flutter project

• Write code using Dart programming language

• Test and debug the application

• Build and deploy the application on various platforms
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Q2. Explain Roles and Responsibilities
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Q1. Explain Roles and Responsibilities
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Q2. Tell About Maersk Company
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Q1. About Azure Cloud, System Design high availability, reliability, performance.
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Coding problem on integer to Roman number conversion.

Q1. Managerial round, why you want to join Maersk ?
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