Citigroup Softwaretest Engineer Interview Questions and Answers

Q1. Can you provide a detailed overview of the technical discussions related to your past work experience?
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Online aptitude test was taken
1st round was general aptitude test
2nd was coding question with two questions to solve in 45 mins

Q1. General test with lots pf questions which describes your traits . Answer Honestly
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Q1. It was a 15 - 20 mins interview round 1) Basic Intro 2) Asked about my projects . 3) MySQL queries , Normalization 4) Interface in Java and general 5) Write a code to return sum of numbers present in al...read more
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Q1. Did not clear Technical round
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Includes a lotta apti based on logic sections

DO Leetcode hard minimum

Q1. OOPS, System design, SQL
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Q1. Create own list without using java collections
Ans. 
Create a custom list using arrays in Java
• Declare an array of strings to store the elements of the list

• Implement methods like add, remove, get, and size to manipulate the list

• Use a counter variable to keep track of the number of elements in the list
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Q1. Technical related
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Q1. Common HR round
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Q1. Common round about personal information
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Q1. What is interface and difference between interface and abstract class
Ans. 
An interface is a contract that specifies the methods that a class must implement. Abstract class is a class that cannot be instantiated.
• An interface can only have abstract methods and constants, while an abstract class can have both abstract and non-abstract methods.

• A class can implement multiple interfaces, but can only inherit from one abstract class.

• Interfaces are used to achieve abstraction and provide loose coupl...read more
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Q2. What do you mean by reflection?
Ans. 
Reflection is the ability of a program to examine and modify its own structure and behavior at runtime.
• Reflection allows a program to inspect and manipulate its own code and data at runtime.

• It is commonly used in frameworks and libraries to provide dynamic behavior.

• Examples include Java's reflection API and .NET's System.Reflection namespace.

• Reflection can be used to create new objects, invoke methods, and access field...read more
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Logical quantitative

Two coding questions array string programs

Q1. Computer oops networks projects data structure and algorithms
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2 very easy coding questions. Solved both of them in 12-15 minutes.

Q1. Discussion on project. How will you implement call logs in mobile number efficiently. Make sure that you know everything about what you have written in project. Basic DSA question on binary search and map.
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Q1. Asked if I have my personal website.
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Q2. What happens when you enter the address of your personal website in your browser? Deep discussion on this topic alongwith protocol , DNS table etc. Make sure that you do not have any vague idea about this ...read more
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Q3. Discussion on internships.
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Q1. Why do u want to wark at jpmc ?
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Q2. Asked about my educational and family background. What job my father do , asked about my location preference (Mumbai, Bengaluru or Hyderabad) , asked how well my last 2 interviews were.
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