Wissen Technology Software Developer Intern Interview Questions and Answers

There was apti round with good apti questions and also code debugging

Q1. About polymorphism ,code polymorphism and inheritance
Ans. Coded it in cpp in notepad
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Q2. 3 apti question and also discussion on resume
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Q3. Angle between hands of clock on 10:25? Trains traveling towards eachother give speed where will they collide?
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Angle between hands of clock at 10:25 is 147.5 degrees. Trains will collide at midpoint of their initial positions.
• To calculate angle between hands of clock, use formula: |(30*H)-(11/2)*M|

• For 10:25, H=10 and M=25, so angle = |(30*10)-(11/2)*25| = 147.5 degrees

• When two trains are traveling towards each other, their relative speed is added to get the collision speed.

• The collision point is the midpoint of their initial po...read more
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Q1. General resume based
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Q2. Strength and weakness
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Q1. There are three technical rounds one round will be tough
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Q1. They didn't ask me anything
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Q2. Will give U false promises and showoff about the company
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The maximum score required to achieve is 50% out of 100.

Q1. Can you describe your previous project?
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Q2. Describe Mobile Testing and API Testing.
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Q1. What is the internal working of a hashmap?
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Q2. Design a Least Recently Used (LRU) cache.
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Q1. What are the SOLID principles in software engineering?
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Q2. What design patterns have you worked with?
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Data structure was more and it was difficult round

Q1. It will depend on interviewer
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Q1. It will be depending on Manager who is taking interview
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Q1. It will be very smooth
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Test will be in hacker rank there would be a difficulty level between easy to medium

Q1. Question will be from data structure and easy to medium level of the programming laanguage question
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Q1. This is just to check your english ability
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One coding test happen

Q1. Java questions, spring boot framework questions
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Q2. DSA using stream api
Ans. 
Using stream API for Data Structures and Algorithms
• Stream API in Java can be used to perform operations on collections like filtering, mapping, reducing, etc.

• It can be used for implementing various data structures and algorithms efficiently.

• For example, you can use stream API to find the sum of all elements in an array or filter out even numbers from a list.
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Q1. Java questions and spring boot questions
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Q2. One program using stream api
Ans. 
Using stream API to filter a list of numbers and find the sum of even numbers
• Use Stream.filter() to filter out even numbers

• Use Stream.mapToInt() to convert stream to IntStream

• Use IntStream.sum() to find the sum of even numbers
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