DB Schenker Senior System Testing Engineer Interview Questions and Answers

Q1. How to identify and solve race condition.
Ans. 
Identifying and solving race conditions involves understanding concurrent execution and implementing synchronization mechanisms.
• Understand the critical sections of code where race conditions can occur

• Use synchronization mechanisms like locks, semaphores, or atomic operations to control access to shared resources

• Implement thread-safe data structures or use thread-safe libraries to avoid race conditions

• Use tools like sta...read more
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Q2. Solve an array question on finding the third largest in an unsorted array.
Ans. 
Find the third largest element in an unsorted array of strings.
• Sort the array in descending order.

• Remove duplicates if necessary.

• Return the element at index 2 as the third largest.
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Q1. Basic string related coding questions
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Q2. Core java questions
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It was a normal aptitude test with mathematical questions.

It was a techno-coding test where I had to code while sharing my screen on a live conversation with the interviewer.

Q1. I was primarily asked about managerial questions on adaptability to new technology and creativity if existing solutions don't work.
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Q2. In a situation where your team is not getting a proper result with existing approach your team uses, how would you try to fix it?
Ans. 
I would analyze the current approach, identify the root cause of the issue, brainstorm alternative solutions, and collaborate with the team to implement and test them.
• Analyze the current approach to identify weaknesses

• Brainstorm alternative solutions with the team

• Implement and test the new solutions

• Regularly communicate and collaborate with team members
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Q1. Csharp basics and a coding questing was given to implement
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Q2. .net and angular basics questions
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Q1. Asked deeply about my resume and technologies
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Q2. Coding question to sort a given array using DSA
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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. 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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Visual Reasoning questions

Mostly string based questions

Q1. Salary expectations
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Q2. Immediate joining
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They grasping our knowledge

Q1. They check how to grasp they ideas
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Q2. My details want to hire my skills
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