Volante Technologies Test Engineer Interview Questions and Answers

Easy coding questions DSA

Q1. Reverse a linked list
Ans. 
Reverse a linked list by changing the pointers direction
• Start with three pointers: current, previous, and next

• Iterate through the linked list, updating the pointers to reverse the direction

• Update the head pointer to point to the new first node
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Q2. Find middle of linked list
Ans. 
To find the middle of a linked list, use the slow and fast pointer technique.
• Initialize two pointers, slow and fast, both pointing to the head of the linked list.

• Move slow pointer by one step and fast pointer by two steps until fast reaches the end of the list.

• The position of the slow pointer will be the middle of the linked list.
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Q1. Pick from a basket of oranges
Ans. 
The question is asking to pick an orange from a basket.
• Carefully select a ripe orange without any bruises or blemishes

• Gently twist the orange off the stem to avoid damaging the fruit

• Check for firmness and weight to determine ripeness
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It was simple program of url shorting for registered and non registered users each request must have unique shortened url.

Q1. Palindrome implementation and run time
Ans. 
A palindrome is a word or phrase that reads the same backward as forward. Implementing it involves comparing the first and last characters and iterating towards the middle.
• Implement a function that takes a string as input and returns true if it is a palindrome, false otherwise.

• Use two pointers, one starting from the beginning and the other from the end, and compare the characters at each position.

• If the characters matc...read more
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Q2. DSA and various algorithms and run time
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Q1. This round was one on one with VP of engineering. Basic q and a regarding role and responsibilities
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Q1. Relocation, Reason For job change, future plan, careers objective
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Q1. Basic questions on data structures
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Q1. Second round was Managerial Round. The interviewer basically had a conversation with me and asked some hr questions also.
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Q1. Basic HR questions
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Scenarios base conding round

Questions on strings in javascript.
Basic javascript and typescript.

Q1. Questions on cloud technologies
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Q1. Cultural fit and salary related discussion
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For fresher, you need a basic knowledge of collection and string manipulating.

Project related they will ask you how API works, what's the flow of your application how you implement such kind of questions they may ask

Questions like if 2 persons are doing one work how fast will it be completed if 3 people are doing the same job

Q1. It was completely on JAVA
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Q1. Where do you see yourself in 5 years
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Q1. Java basics - oops , multi-threading, collections, hashmap implementation
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Q2. Sql questions basic
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Q1. Java questions and some scenario based questions
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Q2. Regarding file reading and writing
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Q3. Microservices and spring boot basics
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Q1. What is agile methodology
Ans. 
Agile methodology is a software development approach that emphasizes flexibility, collaboration, and iterative development.
• Agile methodology focuses on delivering working software in short, iterative cycles.

• It values customer collaboration and responding to change over following a strict plan.

• Teams work closely together and adapt to changing requirements throughout the project.

• Common agile frameworks include Scrum, Kan
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