EXL Service Analytics Manager Interview Questions and Answers

Q1. Explain any ML model.
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Q2. Create Dataframe from two lists.
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DSA and ML, AI, Coding question

Q1. Case study which was easy
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Q1. In depth questions on ML
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Q1. 1Q) what is balance sheet? 2Q) what is Net Profit & Net Loss 3Q) what are the Golden Principles of Accounting?
Ans. 
Balance sheet is a financial statement that shows a company's assets, liabilities, and shareholders' equity at a specific point in time.
• Balance sheet provides a snapshot of a company's financial position.

• It consists of three main components: assets, liabilities, and shareholders' equity.

• Assets are what the company owns, liabilities are what it owes, and shareholders' equity is the difference between the two.

• Net Profit ...read more
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Q1. 1) How does a company raise their capital? 2) Tell me the name of an asset that cannot be depreciated. 3) What is an IPO? 4) What is Primary Market & Secondary Market? 5) Tell me 3 Accomplishments that you...read more
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Given 6 coding qns related to java and html and also ML.

Q1. Explain abt projects and qns related to ML.
Ans. 
Projects in machine learning involve developing algorithms to analyze and interpret data for various applications.
• Developing a recommendation system for an e-commerce website

• Predicting customer churn for a telecommunications company

• Classifying images in a computer vision project

• Anomaly detection in network traffic for cybersecurity

• Natural language processing for sentiment analysis
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Q1. Basic hr qns why straive?
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Q1. How is the effectiveness of a campaign analysed ?
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The effectiveness of a campaign is analyzed by measuring key performance indicators (KPIs) and conducting A/B testing.
• Identify and track relevant KPIs such as conversion rate, click-through rate, return on investment (ROI), and customer acquisition cost.

• Compare the campaign results to benchmarks and historical data to assess performance.

• Conduct A/B testing to test different variables such as messaging, visuals, and tar...read more
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Q2. How to improve ROI of a marketing channel
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To improve ROI of a marketing channel, focus on targeting the right audience, optimizing ad creatives, analyzing data regularly, and testing different strategies.
• Target the right audience based on demographics, interests, and behavior

• Optimize ad creatives for better engagement and conversion rates

• Analyze data regularly to identify trends, patterns, and areas for improvement

• Test different strategies such as A/B testing,
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I was asked to write SQL queries for 3rd highest salary of the employee, some name filtering, group by tasks.
Python code to find the index of the maximum number without using numpy.

Q1. Explain the Project undertaken during the research and follow-up questions
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Q1. Write pandas query to separate the names as first and last name from the full name. Drop the duplicate columns and also the missing values. Write output for the Python code. Write SQL query to retrieve t...read more
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Answering questions related to data science concepts and techniques.
• Recall is the ratio of correctly predicted positive observations to the total actual positives. Precision is the ratio of correctly predicted positive observations to the total predicted positives.

• To reduce variance in an ensemble model, techniques like bagging, boosting, and stacking can be used. Bagging involves training multiple models on different ...read more
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2hrs - sections include aptitude, machine learning, deep learning and two easy python coding questions

Q1. Resume scrutiny with projects and internships
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Q2. How to measure 45 mins duration using two identical wires
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Q3. Partition a round cake into eight equal parts within three cuts
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Q4. 10 coins puzzle (5 heads up and 5 tails up)
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