Dollar Tree Interview Questions and Answers

Q1. Tell me about yourself?
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Q2. What is your skills?
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Q1. Tell me about selenium
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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.
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Q2. Expalin java inheritance ana polymorphism
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Q3. WHich tool you have used
Ans. 
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
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Bunch of quant probability questions

Bunch of dp and graph theory

Q1. How to run linear regression model in R
Ans. 
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
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Q2. How to run linear regression model without intercept in R
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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
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Q1. Node.js and Javascript related questions
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Q2. Middleware, Express, Closure, Error first
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Q1. Tell me about Yourself.
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Q2. Walk us through your role in the past organisation.
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Q1. Past working Experiences
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Q2. Educational Qualifications
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Q3. Awareness about the Indian Economy
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Aptitude test was easy enough to crack simply

For Assignment they allowed 90 mins but hardly it takes 30 minutes to solve

Q1. Do you know about the post you are interviewing?
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Q2. Yes. I very well knows that how things work in this post.
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Q1. General Introduction & HR Experience
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Q1. Previous organisation experience
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