Gameberry Labs Lead Operator Interview Questions and Answers for Experienced

Q1. How to do data migration
Ans. 
Data migration involves transferring data from one system to another while ensuring data integrity and minimizing downtime.
• Plan the migration process including identifying data to be migrated, mapping data fields, and setting up a timeline.

• Backup all data before starting the migration to prevent data loss.

• Use tools like ETL (Extract, Transform, Load) to extract data from the source system, transform it to fit the targe...read more
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Q2. Explain use of next js
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Aptitude questions were pretty easy like on speed etc

Coding questions were also easy like patterns code, reverse string just basics

10 reasoning questions and 3 coding questions

Q1. Wap for factorial with recurrsion
Ans. 
Factorial calculation using recursion in a programming language
• Define a function that takes an integer as input

• Base case: if input is 0, return 1

• Recursive case: return input multiplied by factorial of input-1

• Example: factorial(5) = 5 * factorial(4) = 5 * 4 * factorial(3) = ... = 5 * 4 * 3 * 2 * 1 = 120
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Q2. Opps and basic core Java questions
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Simple logic and maths based questions along with coding round

Q1. Questions on string literals
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Q2. Array vs arraylist
Ans. 
Arrays are fixed in size, while ArrayLists can dynamically resize. Arrays are faster for accessing elements, while ArrayLists offer more flexibility.
• Arrays have a fixed size, while ArrayLists can dynamically resize.

• Arrays are faster for accessing elements, while ArrayLists offer more flexibility in terms of adding, removing, and manipulating elements.

• Example: String[] namesArray = new String[5]; ArrayList<String>...read more
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Q1. My strength and weaknesses
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Q2. Past work experiences if any
Ans. 
I have worked as a software developer for 3 years at XYZ company.
• Developed web applications using Java, Spring, and AngularJS

• Collaborated with team members to design and implement new features

• Participated in code reviews and testing processes

• Resolved technical issues and provided support to end users
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Basic aptitude only think out of box

Q1. Static and final difference
Ans. 
Static variables belong to the class itself, while final variables cannot be changed after initialization.
• Static variables are shared among all instances of a class

• Final variables cannot be reassigned once initialized

• Static variables are initialized only once at the start of the program

• Final variables must be initialized when declared
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Q2. Patterns problem
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Q1. Tell me about your self?
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Q2. Checking english fluency
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I was given 10 logical questions to solve on a portal with 30min timer.

Most question were printing of patterns, fibonacci, prime no., palindrome etc.
out of 10 questions atleast 8 has to be right to qualify.

Q1. This round is conducted by senior developer, where they ask some logical coding questions to solve on paper.
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Q2. Some complex pattern questions.
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Q1. This is the round with CEO who again ask for some logical question & verbal answering. All they wanna se is how you approach towards problems.
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Q1. Salary negotiation only if you clear the one-on-one CEO round.
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