EdgeVerve Systems Interview Questions, Process, and Tips

Data Structures, problems

Q1. Why String is immutable ?
Ans. 
String is immutable in Java because it enhances security, thread safety, and performance.
• Immutable strings are thread-safe as they cannot be modified by multiple threads simultaneously.

• Immutable strings help in caching and reusing string literals, improving performance.

• Immutable strings prevent malicious attacks like SQL injection by ensuring data integrity.

• Example: String str = "Hello"; str.concat(" World"); // This d
Answered by AI
Add your answer
Q2. SQL joins, SQL cursor
Add your answer

Basic DSA questions were asked

Q1. Sorting algos, OOPS, SQL
Add your answer

Q1. Are you ready to relocate
Add your answer

Q1. Skill set required
Add your answer
Q2. Location flexibility
Add your answer

3 Mid level Coding questions from Hacker Rank

Q1. SDLC basic questions
Add your answer
Q2. SQL queries and joins
Add your answer
Q3. Basic questions in Python
Add your answer
Q4. Certifications if any done
Add your answer

Q1. Coding round hackerrank
Add your answer

Q1. Around fundamentals of mL
Add your answer

3 questions were asked on implementation in 1 and half hour. All were simple questions.

Q1. Simple questions on sorting, SQL, pandas, python, OOPs were asked.
Add your answer
Q2. Find second maximum value in the array. Difference between left union and outer union.
Ans. 
Finding second maximum value in an array and calculating the difference between left and outer union.
• Sort the array in descending order and return the second element

• For left union, find the elements that are present in the first array but not in the second

• For outer union, find the elements that are present in either of the arrays but not in both
Answered by AI
Add your answer
Q3. Difference between left union and outer union.
Ans. 
Left union and outer union are two types of SQL joins. Left union returns all rows from the left table and matching rows from the right table. Outer union returns all rows from both tables.
• Left union is also known as left join.

• Outer union is also known as full outer join.

• Left union returns all rows from the left table and matching rows from the right table.

• Outer union returns all rows from both tables.

• If there is no ma...read more
Answered by AI
Add your answer

Hackerrank coding challenge with 3 coding questions

Q1. 3 coding questions one on recursion, string.
Add your answer
Q2. Basics of OOPs, DBMS and C++ pointers
Add your answer