EPAM Systems Intern Interview Questions and Answers for Freshers

Q1. What is Stochastic Gradient Descend?
Ans. 
Stochastic Gradient Descent is an optimization algorithm used to minimize the cost function in machine learning by updating parameters iteratively.
• SGD is a variant of Gradient Descent that updates the model's parameters using a single training example at a time.

• It is computationally efficient and is commonly used in large-scale machine learning tasks.

• SGD is suitable for online learning and can handle large datasets eff...read more
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Q2. How to improve SGD?
Ans. 
To improve SGD, consider adjusting learning rate, using momentum, implementing learning rate schedules, and adding regularization techniques.
• Adjust learning rate: Experiment with different learning rates to find the optimal value for faster convergence.

• Use momentum: Incorporate momentum to accelerate SGD in the relevant direction and dampen oscillations.

• Implement learning rate schedules: Decay the learning rate over ti...read more
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Q1. Project based questions?
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Q2. Why to Join Emerson?
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Emerson offers a dynamic work environment, opportunities for growth, and a commitment to innovation.
• Emerson provides a collaborative work culture that encourages creativity and problem-solving.

• The company offers various training and development programs to help interns enhance their skills.

• Emerson is known for its cutting-edge technology and commitment to sustainability.

• Interns at Emerson have the opportunity to work o...read more
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Q1. Walk me through your resume and explain your projects
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Q2. What did you do in your internship?
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Q1. What is revenue recognition
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Revenue recognition is the process of recording revenue in a company's financial statements when it is earned.
• Revenue recognition is important for accurately reflecting a company's financial performance.

• It involves determining when revenue is earned and when it can be recognized on the income statement.

• Revenue is typically recognized when goods are delivered or services are performed, regardless of when payment is rece...read more
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General - basic questions

Focused on communication skills

Q1. Technical skill evaluation
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Q1. Basic duties explained and working environment explained.
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Maths and English aptitude

Q1. Asked about project in graduation
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Q1. Reverse linked list in k groups
Ans. 
Reverse a linked list in groups of k nodes
• Break the linked list into groups of k nodes

• Reverse each group individually

• Connect the reversed groups back together
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Q2. JSON data parsing and sorting
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Q3. SQL Queries of JOINS
Ans. 
SQL queries involving JOINS are used to combine rows from two or more tables based on a related column between them.
• Use INNER JOIN to return rows when there is at least one match in both tables

• Use LEFT JOIN to return all rows from the left table, and the matched rows from the right table

• Use RIGHT JOIN to return all rows from the right table, and the matched rows from the left table

• Use FULL JOIN to return rows when ther
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