Algonomy Senior Data Scientist Interview Questions and Answers

Q1. Basics .net , c#, sql
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Q1. Current Project Details, Roles and some technical questions too
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Q1. Package Discussion and Other basic details
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Q1. Machine Learning-related stuff: Confusion Matrix, R2 score, etc.. Also, Python & Statistics.
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Q2. Explain any one project.
Ans. 
Developed a predictive model to forecast customer churn for a telecom company.
• Collected and cleaned customer data including usage patterns and demographics.

• Used machine learning algorithms such as logistic regression and random forest to build the model.

• Evaluated the model's performance using metrics like accuracy, precision, and recall.

• Provided actionable insights to the company based on the model's predictions.
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Q3. Difference between Data Analyst and Data Scientist.
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Data Analyst focuses on analyzing data to provide insights, while Data Scientist focuses on using advanced algorithms and machine learning to predict future trends.
• Data Analyst focuses on analyzing data to provide insights for decision-making.

• Data Scientist focuses on using advanced algorithms and machine learning to predict future trends.

• Data Analyst typically works with structured data, while Data Scientist works wit...read more
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Q1. About work experience
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Q2. About education
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Q1. Angular Architecture, basic angular questions such as data binding, rxjs, dependency injection etc.
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Q1. Coding assignment to fetch data from API and render on the UI. Using httpclient module.
Ans. 
Fetch data from API and render on UI using httpclient module
• Create an instance of httpclient module

• Use httpclient to make a GET request to API endpoint

• Parse the response data and render on UI
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Q1. Normal question on roles and responsibilities alongwith cultural fitment check.
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Q1. Client interview to get the knowledge of UX and responsive web application. Css etc.
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I asked basic questions related to coding and technical languages like MERN, and a few DSA questions about basic programming. The interview was around 45 minutes.

2nd round took about 1 hour and 15 minutes. There are a few technical scenario discussions and questions related to my tech stack like MERN and one coding task in React JS

Q1. The last round with the manager consisted of a discussion about day-to-day job handling as per different scenarios.
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Q1. Notice Period and Salary
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Java 8 , stream and a program to solve on String

Q1. 1. Pattern print code. 2. Types of S3 bucket in AWS. 3. Java basic question. 4. Spring/ Spring boot basic question. 5. Hibernate basic interview question. 6. Some behavioral question.
Ans. 
This is a list of questions asked in an interview for Senior Software Engineer position.
• 1. Pattern print code: Write a code to print a specific pattern using loops.

• 2. Types of S3 bucket in AWS: Explain the different types of S3 buckets in Amazon Web Services.

• 3. Java basic question: Provide a basic question related to Java programming language.

• 4. Spring/Spring Boot basic question: Give an example of a basic question rel...read more
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Q1. Design Least recently used cache.
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Design a Least Recently Used cache system.
• Implement a doubly linked list to keep track of the order of usage of cache items.

• Use a hashmap to store key-value pairs for quick access to cache items.

• When a new item is accessed, move it to the front of the linked list. If the cache is full, remove the least recently used item from the end of the list.
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