Singhi Advisors Senior Manager Interview Questions and Answers

1 hr, React JS interview with logic to build small app

Q1. Does Java support pass by reference?
Ans. 
Yes
• Java uses pass by value for all variables, including object references.

• When an object reference is passed as an argument, a copy of the reference is passed, not the actual object.

• Modifying the reference inside the method will not affect the original reference outside the method.

• However, modifications to the object's state inside the method will be visible outside the method.
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Q2. Explain Singleton Pattern
Ans. 
Singleton pattern restricts the instantiation of a class to a single object.
• Singleton pattern ensures that only one instance of a class exists throughout the application.

• It provides a global point of access to the instance.

• Commonly used in scenarios where a single instance needs to coordinate actions across the system.

• Example: Database connection manager, logger, configuration manager.
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Q1. Window functions
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50 questions in 12mins

Q1. Basic DSA question in binary search and memoization
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Coding assessment in Code signal which is vedio proctored

Q1. Design a loan application system
Ans. 
Design a loan application system
• Collect applicant information such as personal details, employment history, and financial information

• Include a credit check process to assess applicant's creditworthiness

• Implement a system for loan approval/rejection based on set criteria

• Provide options for different types of loans and repayment plans

• Ensure security measures are in place to protect applicant's sensitive information
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Bank account creation, deposit money, withdraw money

Q1. Question around work experience and how a particular scenario or situation is handled
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Suggest system cost optimization based on given data set

Q1. SQL based case when and join question
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Q2. Asked to explain project in previous company
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Q1. Guesstimate for number of lifts required in a building
Ans. 
The number of lifts required in a building can be estimated based on factors like building size, occupancy, and usage patterns.
• Consider the size and height of the building - taller buildings may require more lifts

• Take into account the number of floors and units in the building

• Factor in the expected occupancy and usage patterns - a residential building may require fewer lifts than a commercial building

• Consider peak usag...read more
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Q2. Case study for revenue growth of a company
Ans. 
Analyzing a case study on revenue growth strategies for a company
• Identify current revenue streams and their performance

• Analyze market trends and competition to identify growth opportunities

• Develop and implement new marketing strategies to attract more customers

• Optimize pricing strategies to maximize revenue

• Invest in research and development to create new products/services

• Expand into new markets or target new customer s
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70 mins 4 topics, 1/2 easy, 3 would be easy+, need detail orientation, 4 would be medium,

Easy case study, code review and find the bug

Q1. How much time does the lift take go from to floor to the bottom?
Ans. 
The lift takes approximately 30 seconds to go from top floor to bottom.
• The time taken for the lift to go from top floor to bottom can vary depending on the speed of the lift and the number of floors.

• On average, a lift takes around 20-30 seconds to go from top floor to bottom in a standard building.

• Factors such as the weight of the passengers, maintenance of the lift, and any stops in between can also affect the time ta
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Q1. How much revenue is calculated year over year taking historical data into consideration?
Ans. 
Revenue is calculated year over year by comparing the total revenue from one year to the next using historical data.
• Calculate total revenue for each year

• Compare total revenue from current year to previous year

• Use historical data to track revenue trends

• Consider factors like seasonality, market trends, and economic conditions

• Formula: Year-over-Year Revenue Growth Rate = ((Current Year Revenue - Previous Year Revenue) / P
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Q1. Salary expectation
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