iQGateway Interview Questions and Answers

Q1. Experience in hr ops
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Q2. Questions on performance management
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Q1. What is the method to find the largest three numbers in an array using sorting? Self Intro
Ans. 
Sort the array and retrieve the last three elements for the largest numbers.
• 1. Sort the array in ascending order.

• Example: For array [5, 1, 9, 3], sorting gives [1, 3, 5, 9].

• 2. Access the last three elements of the sorted array.

• Example: From [1, 3, 5, 9], the largest three are [5, 9].

• 3. If the array has fewer than three elements, handle accordingly.

• Example: For array [2], return [2] as the largest number.
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Emotion Intensity was the assignment project

Q1. What are pearson and spearman coefficients? When to choose which?
Ans. 
Pearson and Spearman coefficients are measures of correlation between two variables, with Pearson being for linear relationships and Spearman for monotonic relationships.
• Pearson coefficient measures the linear relationship between two variables, while Spearman coefficient measures the monotonic relationship.

• Pearson coefficient ranges from -1 to 1, with 1 indicating a perfect positive linear relationship, 0 indicating n...read more
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Q2. Explain multi-collinearity mathematically and how it impacts the equation: y=mx+c?
Ans. 
Multi-collinearity occurs when independent variables in a regression model are highly correlated with each other.
• Multi-collinearity is a phenomenon where two or more independent variables in a regression model are highly correlated.

• It can impact the equation y=mx+c by making the estimates of the coefficients m and c less reliable.

• Multi-collinearity can lead to inflated standard errors, making it difficult to determine ...read more
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Q1. 1. 2 basic Java programs 2. Static and non static keywords 3. Can abstract class have concrete methods? 4. What is IoC? 5. Structure of linkedlist
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