Marlabs Exchange Administrator Interview Questions and Answers

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
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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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Q1. Questions on java , spring boot , containarisation tools, coding, SOLID principles
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5 coading questions were asked in it

Q1. Manegerial round
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Q1. Do you have working experience of SwiftUI
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Q2. Have you ever implemented or worked with server driven UIs
Ans. 
Yes, I have experience implementing server driven UIs.
• Implemented server driven UIs using JSON responses to dynamically update UI elements

• Worked with frameworks like React and Angular to handle server driven UI updates

• Used server driven UIs to efficiently manage and display large amounts of data
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Q1. What is closure and types?
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Closure is a function that captures variables from its surrounding scope, allowing it to access those variables even after the scope has closed.
• Closure allows a function to access variables from its lexical scope even after the function has finished executing.

• Types of closures include lexical closures, which capture variables from the surrounding lexical scope, and function closures, which capture variables from the fu...read more
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Q2. What is Core data and all operations with example/scenarios
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Core Data is a framework provided by Apple for managing the model layer objects in an iOS application.
• Core Data is used for storing, retrieving, and managing data in an iOS app.

• It provides an object-oriented interface to work with data.

• Operations include creating, reading, updating, and deleting data.

• Example: Creating a new record in Core Data for a user profile.

• Example: Fetching a list of items from Core Data to displ
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Q1. Why you want to join the company?
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Q2. Why should we hire you
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4 sections Quantitative Analysis, Programming Based (output analysis, error detection), Aptitude and ML Engineering ( activation functions, models etc basics)

Q1. Merge Sort simple divide and conquer but a pain to execute they really just look for how logical you are and if your approach is correct
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Q2. Talk about your projects previous experience etc
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Q1. What do you think about Q
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Q2. Personality based questions like what are your hobbies, what drives you etc
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Q1. Basics of Java OOPS
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Q1. Questions on my recent project and DSA questions.
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Q1. Only DSA questions
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Q1. Tell me some thing about yourself and weakness and strengths
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First round was a coding test on hackerearth. 5 objective, 2 coding and 1 sql question was there. Questions were easy.

Q1. Given an array of length n and a value k. Return a list of array which contains not more that k elements in each row of the list. Note: Check for the edge cases.
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Q2. Give a list of cards, sort on the basis of their rank and suit.
Ans. 
Sort a list of cards based on their rank and suit.
• Create a custom sorting function that first sorts by rank and then by suit

• Use a comparison function to compare ranks and suits of each card

• Example: ['2H', '3D', '10S', 'AH', '4C'] should be sorted as ['2H', '3D', '4C', '10S', 'AH']
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Q3. Can we use a user defined class as a key in hashmap? If yes explain how?
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Q1. Introduce yourself
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Q2. Technical questions related to java and dsa
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Q1. Advance level based on experience
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Q1. Experience level
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Q1. Experience related
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