Goldman Sachs Software Engineer Intern Interview Questions and Answers

Hacker Rank 2 easy questions like first unique occurance in string

Q1. Java OOPS famous data structure time complexity 1 coding question easy.
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Q1. Basic HR Question Explain the projects that you have done.
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A standardized assessment that measures a person's skills, cognitive abilities, and potential to perform in a specific role.

Q1. Technical interview questions at Automatic Data Processing (ADP) may cover topics such as programming, databases, and software development.
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Q2. They may also ask about problem-solving and how you approach challenging tasks.
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Q3. Emphasize a structured method that involves clearly defining the issue, gathering relevant information, brainstorming potential solutions, evaluating options carefully, implementing the chosen solution, an...read more
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Q4. Data structures, algorithms, SQL querying, object-oriented programming principles, software development lifecycle, database concepts (relational vs. NoSQL), coding challenges in relevant languages (like Py...read more
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Q1. May ask about your background, skills, and how you handle challenges
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Q2. Background questions Tell me about yourself, What are your career goals, What are your strengths and weaknesses, What do you know about ADP, and Why do you want to work at ADP.
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Q1. JavaScript basic ques
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Q2. Var vs const vs let
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Coding interview basic level nothing more required for this

Basic coding not more relevant in the whole process

Q1. Okish not that hard
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3 coding que easy,med and hard

Q1. Os related que What is kernel , OS types ,what happens after booting computr ,etc
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Q2. Creat a array and print all elements , which database used for pdf storing sql or nosql
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Q1. OOps related que abstraction , inheritance , code it
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Q2. Middel element of linked list
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Q1. What challenges u faced in engineering?
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Q2. Situational based questions
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Q1. Why u choose to work deustch bank ?
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Q2. Project related quw
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Q1. What are software development design patterns? Can you explain singleton design pattern and code an example to show that?
Ans. 
Software development design patterns are reusable solutions to common problems encountered in software design.
• Design patterns help in creating maintainable, scalable, and efficient software.

• Singleton design pattern ensures a class has only one instance and provides a global point of access to it.

• Example: Implementing a singleton class in Java -

• public class Singleton { private static Singleton instance; private Singleto...read more
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Q2. Can you develop and simple API app to show its running and anyone request sending to it?
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Q3. What kind of databases you’ve worked on? And explain what is DML!
Ans. 
I have worked on relational databases like MySQL and PostgreSQL. DML stands for Data Manipulation Language.
• Worked on MySQL and PostgreSQL databases

• Familiar with writing SQL queries for data manipulation

• DML stands for Data Manipulation Language
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Q4. When we work with micro services , what is your experience which becomes challenge?
Ans. 
One challenge when working with microservices is managing communication between services.
• Ensuring proper service discovery and registration

• Handling network latency and failures

• Implementing effective monitoring and logging

• Maintaining consistency and data integrity across services
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Q1. What are the types of deployments?
Ans. 
Types of deployments include blue-green, canary, rolling, and immutable.
• Blue-green deployment involves running two identical production environments and switching between them.

• Canary deployment gradually rolls out changes to a small subset of users before deploying to the entire infrastructure.

• Rolling deployment updates a few instances at a time, ensuring continuous availability.

• Immutable deployment creates new instanc
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Q2. What is Blue Green Deployment ?
Ans. 
Blue Green Deployment is a software release strategy that reduces downtime and risk by running two identical production environments.
• In Blue Green Deployment, one environment (blue) is live and serving production traffic while the other (green) is idle and ready to be switched to at any time.

• This strategy allows for zero downtime deployments, as the switch between blue and green environments can be done seamlessly.

• Blue...read more
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Q3. I was asked travelling salesman problem to solve.!
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Q1. Tell me what you liked in last 2 rounds!
Ans. 
I enjoyed the challenging technical questions and the opportunity to showcase my problem-solving skills.
• Challenging technical questions

• Opportunity to showcase problem-solving skills
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Q2. Explain me the best project as per you which you worked upon and features of it.
Ans. 
Developed a web-based project management tool for tracking tasks and deadlines.
• Implemented user authentication and authorization using JWT tokens

• Integrated real-time chat feature using WebSockets

• Utilized React for front-end and Node.js for back-end development
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Q3. Some RegEx related questions were asked.
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Q4. How vector databases work?
Ans. 
Vector databases store data in a vector format, allowing for efficient querying and analysis of high-dimensional data.
• Vector databases use vectors to represent data points in a multi-dimensional space.

• They are commonly used in machine learning and data science applications for tasks like similarity search and clustering.

• Examples of vector databases include Faiss, Annoy, and Milvus.
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Q5. If I give you a coding problem to solve in the language you don’t know, can you solve it, when you’re allowed to refer Google search?
Ans. 
Yes, I can solve a coding problem in a language I don't know with Google search.
• Utilize Google search to understand syntax and concepts in the unfamiliar language

• Break down the problem into smaller parts and search for solutions to each part

• Refer to online resources, forums, and documentation for guidance

• Practice writing and testing code snippets in the new language before attempting the full solution
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Q6. How you can parse location and shop name from a card transaction string?
Ans. 
Use regex to extract location and shop name from transaction string.
• Use regular expressions to match patterns for location and shop name.

• Look for keywords like 'at', 'from', 'in' to identify location.

• Consider variations in transaction strings and account for them in regex patterns.

• Example: 'Spent $50 at Starbucks Coffee' -> Location: Starbucks Coffee, Shop Name: Starbucks Coffee
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Q1. Regarding all basic java , sprint boot questions
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Q2. More focused on Spring and microservices
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Q1. Advance java questions
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Q1. How does Django apply migrations to the database?
Ans. 
Django applies migrations to the database using the 'manage.py migrate' command.
• Django tracks changes to models and generates migration files accordingly.

• The 'manage.py makemigrations' command creates migration files based on model changes.

• The 'manage.py migrate' command applies the generated migration files to the database.

• Migrations help keep the database schema in sync with the changes in Django models.
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Q2. What is hoisting in javascript?
Ans. 
Hoisting in JavaScript is the behavior where variable and function declarations are moved to the top of their containing scope during the compilation phase.
• Variable declarations are hoisted to the top of their scope, but not their assignments.

• Function declarations are fully hoisted, meaning they can be called before they are declared.

• Hoisting can lead to unexpected behavior if not understood properly.
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