UBS Interview Questions, Process, and Tips

Q1. React hooks - custom hooks, hooks rules, useEffect vs useLayoutEffect, useReducer Lifecycle with useEffect Context - When, how and why to use it? React 18 new features
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Q2. What does strict mode do? Accessibility in react How forwardRef works? Keys in react controlled components, uncontrolled components, how to use those?
Ans. 
Explaining the features and usage of ReactJS
• Strict mode catches common mistakes and enforces best practices

• ForwardRef allows passing refs to child components

• Keys help React identify which items have changed, added, or removed

• Controlled components are stateful and rely on props to update, while uncontrolled components manage their own state

• Accessibility in React involves using ARIA attributes and semantic HTML
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Q3. ES6 features Shallow cloning and deep cloning How to deep clone nested objects? Hoisting JS execution cycle - call stack, event loop and callbacks
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ES6 features, shallow and deep cloning, hoisting, JS execution cycle.
• ES6 features include arrow functions, template literals, let and const, destructuring, spread and rest operators, etc.

• Shallow cloning creates a new object with the same properties as the original object. Deep cloning creates a new object with all nested objects also cloned.

• To deep clone nested objects, use a recursive function or a library like lodash...read more
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Q4. Tell us about a challenging recently faced by you
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Q5. React testing How to test hooks?
Ans. 
Hooks can be tested using React Testing Library or Enzyme.
• Use React Testing Library's renderHook() method to test hooks

• Test the hook's return value and its behavior on re-renders

• Use Enzyme's shallow() or mount() methods to test hooks

• Mock any external dependencies used in the hook

• Test edge cases and error handling
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Q1. Kyc process related
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Q1. Kyc process related
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Q1. Salary discussion
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Q1. Walk me through your resume
Ans. 
I have a strong background in quantitative analysis and have worked on various projects in the field.
• Bachelor's degree in Mathematics with a focus on statistics

• Internship at XYZ Investment Bank, where I developed quantitative models for risk assessment

• Led a team of analysts to develop a trading algorithm that outperformed the market by 10%

• Published research paper on machine learning techniques for financial forecasting

• ...read more
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Q2. Why this particular role
Ans. 
I am passionate about using quantitative analysis to solve complex problems and make data-driven decisions.
• I have a strong background in mathematics and statistics, which are essential skills for a quantitative analyst.

• I enjoy working with large datasets and using statistical models to uncover patterns and insights.

• I am excited about the opportunity to apply my analytical skills to financial markets and investment stra...read more
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Q3. Why do you want to join us
Ans. 
I am passionate about quantitative analysis and believe that joining your team will provide me with the opportunity to apply my skills and contribute to meaningful projects.
• I have a strong background in mathematics and statistics, which are essential for quantitative analysis.

• I am excited about the prospect of working with a team of experienced quantitative analysts and learning from their expertise.

• Your company has a ...read more
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Q1. Question related to your previous job, education and family
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Coding question and other android specific question

Q1. Write sql query
Ans. 
SQL query to retrieve total sales amount for each product category
• Use GROUP BY clause to group the results by product category

• Use SUM() function to calculate the total sales amount

• Join the tables if necessary to get the required data
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Q2. Tell your exp it
Ans. 
I have 3 years of experience working as a Data Analyst in the finance industry.
• Utilized SQL to extract and analyze data from databases

• Created visualizations using Tableau to present findings to stakeholders

• Performed predictive modeling using Python to forecast financial trends
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