Comvision Interview Questions and Answers

Selenium is a popular open-source automation testing tool used for web application testing.

• Selenium supports multiple programming languages such as Java, Python, C#, etc.

• It allows testers to write test scripts in a variety of formats like HTML, Java, C#, etc.

• Selenium can automate web browsers across different platforms like Windows, Mac, Linux, etc.

I have used various tools such as Microsoft Excel, Google Analytics, and Adobe Photoshop.

• Microsoft Excel for data analysis and reporting

• Google Analytics for website traffic analysis

• Adobe Photoshop for graphic design

The number of burgers sold by a burger outlet in a city can vary based on factors like location, menu offerings, pricing, and customer demand.

• Consider the population of the city and the popularity of the outlet.

• Analyze the outlet's menu offerings and pricing compared to competitors.

• Take into account any special promotions or events that may impact sales.

• Look at historical sales data if available.

• Interview employees or

Transportation cost for raw materials can be estimated based on distance, mode of transportation, quantity, and current market rates.

• Consider the distance between the supplier and the manufacturing facility

• Take into account the mode of transportation (road, rail, sea, air)

• Calculate the quantity of raw materials being transported

• Research current market rates for transportation services

• Factor in any additional costs such

Question trends in customer service are constantly evolving based on customer needs and technological advancements.

• Stay updated on industry trends through research and training

• Adapt communication style to match current trends (e.g. chatbots, social media)

• Utilize data analytics to understand customer preferences and behavior

• Provide personalized and efficient service to meet evolving customer expectations

To run a linear regression model in R, use the lm() function with the formula specifying the relationship between variables.

• Use the lm() function to fit a linear regression model, specifying the formula with the dependent and independent variables.

• For example, to predict sales based on advertising spend, use lm(sales ~ advertising, data = dataset).

• Use summary() to view the results of the linear regression model, includ...read more

To run linear regression model without intercept in R, set the intercept parameter to 0

• Set the intercept parameter to 0 in the lm() function in R

• Example: lm(y ~ x - 1, data = dataset) will fit a linear regression model without intercept

Derivatives are financial instruments whose value is derived from an underlying asset or group of assets.

• Derivatives can be used for hedging, speculation, or arbitrage.

• Examples of derivatives include options, futures, forwards, and swaps.

• Derivatives allow investors to take on risk or hedge against risk in the financial markets.

Economic changes can have a significant impact on the market by influencing consumer behavior, investor sentiment, and overall business performance.

• Changes in interest rates can affect borrowing costs for businesses and consumers, impacting spending and investment decisions.

• Fluctuations in currency exchange rates can impact the competitiveness of exports and imports, affecting international trade.

• Changes in government ...read more

Securitisation is the process of pooling various types of debt and selling them as securities to investors.

• Securitisation involves bundling together various types of debt, such as mortgages, auto loans, or credit card debt.

• These debts are then sold to a special purpose vehicle (SPV) which issues securities backed by the cash flows from the underlying assets.

• Investors purchase these securities and receive payments based...read more

Financial ratios are tools used to evaluate a company's financial performance and health.

• Financial ratios are calculated using data from a company's financial statements.

• They help investors and analysts assess a company's profitability, liquidity, efficiency, and solvency.

• A good number for a financial ratio can vary depending on the industry and company size.

• For example, a current ratio of 2 or higher is generally cons...read more

Excel functions like Vlookup, Hlookup, Xlookup, IF/AND/OR are used for data lookup and logical operations.

• Vlookup: Searches for a value in the first column of a table and returns a value in the same row from a specified column.

• Hlookup: Similar to Vlookup but searches for a value in the first row of a table.

• Xlookup: A more versatile version of Vlookup and Hlookup that can search both vertically and horizontally.

• IF: Retu...read more