Wasp Mobile Interview Questions and Answers

Q1. Self introduction
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Q2. Any work experience
Ans. 
Yes, I have 3 years of work experience as an auditor in a reputable firm.
• Worked as an auditor for 3 years in XYZ firm

• Conducted audits on various financial statements

• Prepared audit reports and communicated findings to management
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Q3. Own Topics and family trip friend trip
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Q4. Any skill in computer knowledge
Ans. 
Proficiency in computer knowledge is essential for a Concurrent Auditor.
• Strong understanding of accounting software and tools

• Ability to analyze data using spreadsheets and databases

• Knowledge of cybersecurity measures to protect sensitive information

• Familiarity with audit software for efficient auditing processes
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Q5. Any experience in excel ms world
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Q1. What are the assumptions of Linear Regression?
Ans. 
Assumptions of Linear Regression
• Linearity: The relationship between the independent and dependent variables is linear.

• Independence: The residuals are independent of each other.

• Homoscedasticity: The variance of residuals is constant across all levels of the independent variables.

• Normality: The residuals are normally distributed.

• No multicollinearity: The independent variables are not highly correlated with each other.
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Q2. How to evaluate your machine learning model?
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Evaluate machine learning model by analyzing metrics like accuracy, precision, recall, F1 score, ROC curve, and confusion matrix.
• Calculate accuracy to measure overall performance of the model.

• Use precision to evaluate the proportion of true positive predictions among all positive predictions.

• Consider recall to assess the proportion of true positive predictions among all actual positives.

• Calculate F1 score as a balance ...read more
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Q1. What is R-Squared and Adjusted R Squared? Also brief about the difference?
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Q2. Interpret the coefficients of Linear Regression and Binomial Logistic Regression?
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Q1. Java difference between Finally, Finalize
Ans. 
Finally is a block of code that always executes, while Finalize is a method used for cleanup before an object is garbage collected.
• Finally block is used in exception handling to ensure certain code is always executed, regardless of whether an exception is thrown or not.

• Finalize method is called by the garbage collector before an object is reclaimed.

• Finally block is used in try-catch-finally blocks, while Finalize metho...read more
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Q2. Programming question - Find second largest string from a given sentence
Ans. 
Find the second largest string from a given sentence
• Split the sentence into an array of strings

• Sort the array based on string length

• Return the second last element in the sorted array
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Q3. Difference between AWS cloud front and cloud formation
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AWS CloudFront is a content delivery network (CDN) service, while AWS CloudFormation is an infrastructure as code service.
• CloudFront is used to deliver content to end users with low latency and high data transfer speeds.

• CloudFormation is used to automate the deployment of infrastructure resources in a repeatable and predictable manner.

• CloudFront is a CDN service that caches content at edge locations to reduce latency, ...read more
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Q4. How to improve performance in react js ?
Ans. 
To improve performance in React JS, optimize rendering, minimize re-renders, use virtualization, lazy loading, code splitting, and memoization.
• Optimize rendering by using shouldComponentUpdate or React.memo for functional components

• Minimize re-renders by using PureComponent or memoization techniques like useMemo or useCallback

• Use virtualization for long lists or tables to render only the visible items

• Implement lazy loa...read more
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Q1. About Indian Freedom struggle
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Q2. About Sports particularly game of cricket
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Q1. About LIC Nationalisation
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Q2. Who was the finance minister at the time of LIC Nationalisation
Ans. 
Yashwantrao Chavan was the finance minister at the time of LIC Nationalisation.
• Yashwantrao Chavan was the Finance Minister of India from 1966 to 1970.

• LIC (Life Insurance Corporation of India) was nationalized in 1956.

• Yashwantrao Chavan played a key role in the nationalization of LIC.
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Q1. Indian cinema world
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Q2. What is your hobby, explain
Ans. 
My hobby is painting. I find joy and relaxation in expressing my creativity through colors and brush strokes.
• I enjoy experimenting with different painting techniques and styles

• I often paint landscapes, portraits, and abstract art

• I participate in local art exhibitions and showcase my work on social media
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Q1. What was your contribution towards lead time improvement?
Ans. 
I implemented process improvements and streamlined workflows to reduce lead times by 20%.
• Analyzed current processes to identify bottlenecks

• Implemented automation tools to speed up tasks

• Trained team members on efficient time management techniques

• Collaborated with suppliers to optimize supply chain logistics
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Q1. How have you been able to successfully handle difficult stakeholders? Pls provide an example / case study
Ans. 
I have successfully handled difficult stakeholders by actively listening, addressing concerns, and finding common ground.
• Active listening to understand their concerns and perspectives

• Addressing their concerns with empathy and professionalism

• Finding common ground and working towards a mutually beneficial solution
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Q1. How do we improve lead time in fulfillment
Ans. 
Improving lead time in fulfillment involves optimizing processes, reducing bottlenecks, and enhancing communication.
• Implementing lean manufacturing principles to streamline operations

• Utilizing technology such as automation and inventory management systems

• Improving forecasting accuracy to better anticipate demand

• Enhancing communication between departments to reduce delays

• Regularly reviewing and optimizing the supply cha
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Q1. How have you been able to effectively improve the ER campaigns?
Ans. 
I have improved ER campaigns by analyzing data, implementing targeted strategies, and collaborating with cross-functional teams.
• Analyzed data to identify trends and areas for improvement

• Implemented targeted strategies based on data analysis

• Collaborated with cross-functional teams to ensure campaign success
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Q1. Overall summary with challenges and solutions towards the hurdles in improvement of recruitment process
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2 Coding questions - medium to hard

Q1. Questions on scalable systems.
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Q2. Medium level DSA questions.
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Q1. Questions on SQL
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Q2. Implement LFU using OOPs concepts from scratch.
Ans. 
Implement LFU cache using OOPs concepts
• Create a class for LFU cache with methods like get, put, and remove

• Use a hashmap to store key-value pairs and a hashmap to store frequency of each key

• Implement a doubly linked list to store keys with the same frequency
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Q1. Asked to find sum of sales from dumb data of credit card sales.
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Q2. Askedto find sum of sales ?
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Q1. Tell me about yourself?
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Q2. What do you know about the position?
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Q1. What is Cholecystitis?
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Q1. Previous office details
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