Encore Capital Group Data Analyst Interview Questions and Answers

Python based EDA assignment

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Asked questions of finance and aptitude

Q1. What is machine learning?
Ans. 
Machine learning is a branch of artificial intelligence that involves developing algorithms and models that enable computers to learn from and make predictions or decisions based on data.
• Machine learning is a subset of artificial intelligence that focuses on developing algorithms that can learn from and make predictions or decisions based on data.

• It involves training models on large datasets to recognize patterns and m...read more
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Q2. What do you know about SQL?
Ans. 
SQL is a programming language used for managing and manipulating relational databases.
• SQL stands for Structured Query Language

• It is used to retrieve and manipulate data in relational databases

• Common SQL commands include SELECT, INSERT, UPDATE, DELETE

• SQL can be used to create tables, indexes, and views

• Examples of SQL databases include MySQL, PostgreSQL, Oracle
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Q3. What you know about software Development?
Ans. 
Software development involves creating, designing, testing, and maintaining software applications.
• Software development includes coding, testing, debugging, and documenting software applications.

• Developers use programming languages like Java, Python, C++, etc. to write code.

• Agile and Waterfall are common software development methodologies.

• Version control systems like Git are used to manage code changes.

• Software developm...read more
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Q1. What are the algorithms you know in machine learning and their details ?
Ans. 
Various machine learning algorithms with brief details
• Supervised Learning: Linear Regression, Logistic Regression, Support Vector Machines (SVM), Decision Trees, Random Forest

• Unsupervised Learning: K-means Clustering, Hierarchical Clustering, Principal Component Analysis (PCA)

• Reinforcement Learning: Q-Learning, Deep Q-Networks (DQN)

• Neural Networks: Convolutional Neural Networks (CNN), Recurrent Neural Networks (RNN), L
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Q2. Python questions
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1 hour coding test on intermediate python programming

Q1. It was more related to my projects
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Q2. Asked questions on PCA,KNN and Elbow method .
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Q1. Asked SVM and Logistic regression, their applications and real life uses
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Q2. Matrix formation of a knockout Tournament
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Q1. Tel me about yourself
Ans. 
I am a data analyst with experience in analyzing and interpreting complex data sets to drive business insights.
• Proficient in SQL, Python, and data visualization tools such as Tableau

• Strong analytical and problem-solving skills

• Experience in data cleaning, data mining, and statistical analysis

• Ability to communicate findings effectively to both technical and non-technical stakeholders
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Q2. Deep details of project
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There were 10-20 questions from which 3 were coding and remaining apti + programming

Q1. There were questions based on resume
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Q2. Tell me about your project
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Q1. SQL server, optimisation and financial services questions
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Q2. Basics of projects,past experience
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Q1. Power BI related questions, what is Row-level security
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Q2. Experience related questions, basic SQL related questions
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