EdgeVerve Systems Software Engineer Interview Questions and Answers

Q1. Explain OOPS concept and how you apply it in your implementation
Ans. 
OOPS is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOPS focuses on the concept of classes and objects

• Encapsulation: bundling data and methods that operate on the data within a single unit

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability to present the same interface for diffe...read more
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Q2. Difference between Comparable and Comparator. Difference between Abstract Class and Interface
Ans. 
Comparable is an interface used for natural ordering, Comparator is an interface used for custom ordering. Abstract class can have method implementations, Interface cannot.
• Comparable interface is used to define the natural ordering of objects. Example: String class implements Comparable interface for natural ordering based on alphabetical order.

• Comparator interface is used to define custom ordering of objects. Example:...read more
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Q3. Given a string. Find the number of occurrences of each character
Ans. 
Count occurrences of each character in a given string
• Create an array to store the count of each character

• Iterate through the string and increment the count of each character in the array

• Return the array with counts for each character
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Q4. Given an array. Remove the number of duplicates
Ans. 
Remove duplicates from an array of strings
• Iterate through the array and store each element in a set to keep track of unique values

• Create a new array with the unique values from the set
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Q5. Given a student object having name and grade data variables. Sort the object on the basis of highest grade.
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Q1. Basic java fundamentals
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Q2. Spring boot,sql
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Q1. Some technical questions from manager
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Q2. Some challenges or scenario based questions
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Q1. Salary discussion mostly
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Q2. Benifts that they offer with TR
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The coding test consists of multiple-choice questions and one medium-hard level coding question.

Q1. Given three jugs with different capacities and no measuring tools, how can you measure out a specific amount of water using the jugs you have?
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Q2. What is the angle between the minute and hour hand of a clock at 3:45?
Ans. 
The angle between the minute and hour hand of a clock at 3:45 is 157.5 degrees.
• Calculate the angle formed by the hour hand from 12 o'clock position to 3:45 position (135 degrees)

• Calculate the angle formed by the minute hand from 12 o'clock position to 3:45 position (22.5 degrees)

• Subtract the smaller angle from the larger angle to get the angle between the two hands (157.5 degrees)
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Q3. What is indexing in Database Management Systems (DBMS)?
Ans. 
Indexing in DBMS is a technique used to improve the performance of queries by allowing faster retrieval of data.
• Indexes are data structures that store a small portion of the data set in an easily searchable format.

• They help in speeding up the data retrieval process by reducing the number of disk accesses needed.

• Indexes can be created on one or more columns of a table to improve the performance of SELECT queries.

• Example...read more
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Q4. What is the lifecycle of a React component?
Ans. 
The lifecycle of a React component includes mounting, updating, and unmounting phases.
• Mounting phase: constructor, render, componentDidMount

• Updating phase: shouldComponentUpdate, render, componentDidUpdate

• Unmounting phase: componentWillUnmount
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Q5. How you delete entry in mongodb database
Ans. 
To delete an entry in MongoDB database, you can use the deleteOne() or deleteMany() methods.
• Use deleteOne() method to delete a single document based on a specific condition

• Use deleteMany() method to delete multiple documents based on a specific condition

• Make sure to specify the filter criteria to accurately delete the desired entry
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Q1. React native related questions
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Q2. Experince in developing mobile apps
Ans. 
I have 3 years of experience developing mobile apps for both iOS and Android platforms.
• Developed mobile apps using Swift for iOS and Java/Kotlin for Android

• Experience with mobile app design principles and user interface development

• Worked on integrating APIs and third-party libraries for enhanced functionality
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Q1. Generic interview
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Normal vikas questions

Q1. Cube root,double pointers
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Q2. Projects embedded expected
Ans. 
Projects involving embedded systems are expected in the software engineer role.
• Experience with programming languages commonly used in embedded systems such as C/C++

• Knowledge of hardware-software interface and real-time operating systems

• Ability to work with microcontrollers and sensors

• Examples: Developing firmware for IoT devices, designing control systems for robotics
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Q1. Normal hr questions
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Q2. Job location and projects
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Q1. Why you want to join Amadeus
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Q2. WHy left the previous company
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Q3. What do you know about Amadeus
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Q4. Why we should pay you this much
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