Ernst & Young Consultant Interview Questions, Process, and Tips

Q1. Springboot Questions
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Q2. Learn Springboot and its lifecycle
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Q3. Database questions and also project questions
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Q1. Coding round and sort 0s,1,2
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Q2. Learn. codeing in your language
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Q1. What is linear regression?
Ans. 
Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables.
• Linear regression aims to find the best-fitting straight line that describes the relationship between variables.

• It is commonly used for predicting outcomes based on input variables.

• The equation for a simple linear regression model is y = mx + b, where y is the dependent variable, x...read more
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Q1. General background questions.
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Couple of coding problems and a few MCQs on Java/ Spring Boot/ Angular

Q1. Find the non longest non repeating substring.
Ans. 
To find the non longest non repeating substring, we need to iterate through the string and keep track of the substrings that do not contain repeating characters.
• Iterate through the string and keep track of the substrings that do not contain repeating characters

• Use a hash set to keep track of the characters in the substring

• If a repeating character is found, update the starting index of the substring to the next characte...read more
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Q2. Basic questions on Java, Spring Boot, Hibernate
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Q1. How gc works in Java?
Ans. 
GC in Java manages memory by freeing up unused objects.
• GC runs automatically in the background

• It identifies and removes objects that are no longer in use

• Different types of GC algorithms are available

• GC can impact application performance

• Explicitly calling System.gc() may not always trigger GC
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Q2. Hibernate isolation and propagation levels
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Explanation of Hibernate isolation and propagation levels
• Hibernate isolation levels define the degree of locking and visibility of data during transactions

• There are four isolation levels: READ_UNCOMMITTED, READ_COMMITTED, REPEATABLE_READ, SERIALIZABLE

• Propagation levels define how transactions are propagated between different methods or threads

• There are seven propagation levels: REQUIRED, REQUIRES_NEW, SUPPORTS, MANDATO
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Q3. Exception Handling questions
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