Freshersworld.com Test Engineer Interview Questions and Answers

It was 2 coding questions of medium level

Q1. Longest substring with non repeating characters
Ans. 
Find the longest substring in a given string that does not contain any repeating characters.
• Use a sliding window approach to iterate through the string.

• Keep track of the characters seen so far using a set.

• Update the start and end indices of the window to find the longest substring.

• Return the length of the longest substring.
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Q2. Candy problem. There is similar question in geeks for geeks
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There were 2 questions to test our basic coding knowledge.

Q1. Some basic introduction followed by sort 2 arrays into a single array.
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Q1. Applications of various data structures.
Ans. 
Data structures are used in various applications like search algorithms, storage systems, and graph algorithms.
• Search algorithms like binary search use arrays and trees for efficient searching.

• Storage systems use data structures like hash tables and linked lists for organizing and accessing data.

• Graph algorithms like Dijkstra's algorithm use graphs and trees for solving complex problems.
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Q1. Some basic hr questions like tell me about yourself, what do you know about magicbricks,where do you see yourself in 5 years etc
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Q1. How much experience do you have in IT industry?
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Q2. What is your relevant experience?
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Q1. Core java features and describes oops concept.
Ans. 
Core Java is a programming language that supports OOPs concepts such as inheritance, encapsulation, abstraction, and polymorphism.
• Core Java is an object-oriented programming language.

• It supports encapsulation, which means hiding the implementation details of an object from the outside world.

• Inheritance allows a class to inherit properties and methods from another class.

• Abstraction is the process of hiding complex imple...read more
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Q2. Introduce yourself and about tech that you have used.
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Q1. Describe project and your role and responsibility.
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Q2. What is docker and kubernetes
Ans. 
Docker is a containerization platform that allows developers to package and run applications in isolated environments. Kubernetes is an open-source container orchestration system that automates deployment, scaling, and management of containerized applications.
• Docker allows developers to create and run applications in containers, which are lightweight and portable environments that can run on any machine with Docker ins...read more
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Q3. How to see log of a complete request in docker

Ans. 

To see log of a complete request in docker, use docker logs command.

• Use 'docker logs ' command to see logs of a specific container

• Use '-f' flag to follow the logs in real-time

• Use '--tail' flag to specify the number of lines to show from the end of the logs

• Use '--since' and '--until' flags to specify a time range for the logs

• Use '--timestamps' flag to show timestamps in the logs

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