Ford Business Solutions Lead Engineer Interview Questions and Answers

Q1. Program to reverse a string
Ans. 
A program to reverse a string
• Iterate through the string from end to start and append each character to a new string

• Use built-in functions like reverse() or StringBuilder.reverse() in some programming languages

• Convert the string to an array, reverse the array, and then convert it back to a string
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Q2. Program to read data from excel
Ans. 
A program to read data from excel.
• Use a library like Apache POI or OpenPyXL to read excel files.

• Identify the sheet and cell range to read data from.

• Parse the data and store it in a suitable data structure.

• Handle errors and exceptions that may occur during the process.
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Q1. Explain the Automation framework
Ans. 
Automation framework is a set of guidelines, standards, and tools used for automating software testing.
• It provides a structured approach to automate tests

• It includes tools for test case management, test data management, and reporting

• It helps in reducing manual effort and increasing test coverage

• Examples include Selenium, Appium, and TestNG
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Q1. What are your salary expectations?
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Q2. Share details of your previous job.
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Q3. Why should we hire you?
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Q4. Why are you looking for a change?
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Q1. What is TSQL and optimization techniques
Ans. 
TSQL is a Microsoft proprietary extension of SQL used for querying and managing relational databases.
• TSQL stands for Transact-SQL and is used in Microsoft SQL Server.

• Optimization techniques in TSQL include indexing, query tuning, and avoiding unnecessary joins.

• Examples of optimization techniques in TSQL include using appropriate indexes on frequently queried columns and avoiding using functions in WHERE clauses.
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Q2. Sql is database communication languages
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1 hr duration with 1 coding question on finding duplicate characters along with count, followed by question on Java, springboot and microservices

Q1. Only about CTC and joining date
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Q2. Joining date. they wanted to join fast
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Q1. Coding logic was verbally discussed
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Q2. Create sql queries for different scenarios
Ans. 
Creating SQL queries for different scenarios
• Use SELECT statement to retrieve data from a table

• Use WHERE clause to filter data based on specific conditions

• Use JOIN clause to combine data from multiple tables
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Q1. Scenario-based questions, product-based
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Q2. Validation on how much exposure to the product
Ans. 
Exposure to the product can be validated through hands-on experience, user feedback, market research, and data analysis.
• Hands-on experience with the product through development and testing

• User feedback from customers or internal stakeholders

• Market research to understand the competitive landscape and user preferences

• Data analysis of usage metrics, customer behavior, and product performance

• Examples: Conducting user inter...read more
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Q1. Salary Discussion and Work culture discussion
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Q2. No more questions
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Q1. Explain previous projects
Ans. 
Led multiple projects in developing software solutions for data analysis and visualization.
• Managed a team of engineers to create a data analytics platform for a financial services company

• Designed and implemented a real-time monitoring system for a healthcare organization

• Collaborated with cross-functional teams to deliver a machine learning model for predictive maintenance in manufacturing

• Utilized agile methodologies to...read more
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Create a autocomplete component with best practices.

Q1. Create a todolist using plain javascript
Ans. 
Create a todolist using plain javascript
• Create an input field for adding tasks

• Use an array to store the tasks

• Display the tasks in a list on the webpage

• Add functionality to mark tasks as completed or delete them
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Q2. Explain web vitals
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Web vitals are a set of metrics related to user experience on websites, including loading speed, interactivity, and visual stability.
• Web vitals include metrics such as Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS).

• They are important for measuring and improving user experience on websites.

• Google uses web vitals as a ranking factor for search results.

• Developers can use tools l...read more
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Q3. What is the importance of knowing js internals
Ans. 
Understanding JavaScript internals is important for optimizing performance, debugging, and writing efficient code.
• Helps in optimizing performance by understanding how JavaScript engines work under the hood

• Aids in debugging by knowing how different data types are stored and manipulated

• Enables writing efficient code by understanding concepts like event loop, closures, and prototypes
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