London Stock Exchange Group Interview Questions, Process, and Tips

Q1. Explain high level of Oops
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Q2. Difference between ordered and unordered maps
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Q3. Difference between class and struct
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Implementation of ordered and unordered map
Remove duplicate characters in a string and find the length of a substring
Reading the data from csv file

I was assigned a task to create a questionnaire consisting of five questions. I need to code, build, and provide instructions on how to use it.

Q1. Questions on current project, core skills mainly on Jenkins, CI/CD, testing, SRE principles, monitoring, python coding.
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Q2. Why you want to join LSEG?
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I want to join LSEG because of its reputation for innovation and growth in the financial industry.
• LSEG is a leading global financial markets infrastructure provider

• Opportunity to work with cutting-edge technology and contribute to innovative projects

• Desire to be part of a dynamic and collaborative team environment

• Excited about the potential for career growth and development at LSEG
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Q3. What value can you bring in current team?
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I can bring strong leadership skills, technical expertise, and a collaborative approach to the team.
• Strong leadership skills to guide and motivate team members

• Technical expertise to provide guidance and support on development tasks

• Collaborative approach to foster teamwork and communication within the team
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Q1. Discussions with the Director regarding scenario-based questions, such as how to handle a project in the event of an incident, and how to tackle and overcome such challenges?
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Round 1 was aptitude round, it consisted of java and c++ snippets and we had to guess the output. Apart from that there were problems on speed, velocity, distance and time. Problems on word-letter patterns were also asked. The aptitude round had 30 questions and time given was 30 minutes.

Aptitude round was the only elimination round. The next following 4 rounds were non-elimination rounds. Coding test included 3 questions - 1 and half hour was given to solve the same. It is fine if you don't perform well here, since it is a non-elimination round. But try to solve 1 and half or 2 questions atleast. The questions were mainly based on 1d arrays, 2D arrays, strings and string arrays.

Q1. Introduce yourself.
Ans. 
I am a recent graduate with a degree in engineering, eager to learn and grow in the field.
• Recent graduate with a degree in engineering

• Passionate about learning and growing in the field

• Eager to apply theoretical knowledge to practical projects
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Q2. Difference between Structure and object oriented languages
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Structure languages focus on procedures and functions, while object-oriented languages focus on objects and classes.
• Structure languages use functions and procedures to manipulate data

• Object-oriented languages use objects and classes to encapsulate data and behavior

• Structure languages are more procedural in nature, while object-oriented languages are more modular and reusable

• Examples of structure languages include C and...read more
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Q3. Explain of OOPS concepts and their real life examples.
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OOPS concepts are fundamental to object-oriented programming and include inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: A child class inherits properties and behaviors from a parent class. Example: Animal class can be a parent class with child classes like Dog and Cat inheriting its attributes.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: A car ob...read more
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Q4. What is static keyword and it's usage.
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The static keyword in programming is used to declare variables, functions, or classes that retain their values or state throughout the program's execution.
• Static variables retain their values between function calls

• Static functions can only be accessed within the same file

• Static classes cannot be instantiated and have limited visibility

• Static keyword can also be used in C++ to declare class members shared among all inst
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Q5. System architecture diagram for web application project.
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The system architecture diagram for a web application project visually represents the components and their interactions.
• Include components like client-side interface, server-side application, database, and external services

• Show how these components communicate with each other

• Consider scalability, security, and performance in the design

• Use standard symbols and notations for clarity
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Q6. Access Modifiers in java
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Access modifiers in Java control the visibility of classes, methods, and variables.
• There are four types of access modifiers in Java: public, private, protected, and default.

• Public: accessible from any other class.

• Private: only accessible within the same class.

• Protected: accessible within the same package and subclasses.

• Default: accessible only within the same package.

• Example: public class MyClass { private int myVar; p
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Q7. What OOPS concepts are implemented in my project
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Encapsulation, Inheritance, Polymorphism, Abstraction
• Encapsulation: Data hiding and bundling of data with methods. Example: Using private variables and public methods.

• Inheritance: Reusing code and creating a hierarchy of classes. Example: Subclass inheriting properties and methods from a superclass.

• Polymorphism: Ability to present the same interface for different data types. Example: Method overloading and overriding.

• A...read more
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Q8. DBMS core concepts
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Q9. Overloading and Overriding
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Q10. Approach to the coding questions asked in coding round.
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Q11. Questions on what is cloud and what are some cloud platforms you know?
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A project is assigned to a group of students and we need to come up with an idea on how to implement that project as a team.

Q1. Introduce yourself
Ans. 
I am a recent graduate with a degree in engineering, eager to learn and grow in the field.
• Recent graduate with a degree in engineering

• Passionate about learning and growing in the field

• Eager to apply theoretical knowledge to practical projects
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Q2. Family background
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