Blue Star Infotech Interview Questions and Answers

Mcq questions on python aws database and networks ans os

8 members in a panel and they gave a topic generally a social issue or a general topic you can a lot about

Q1. Project based questions
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Q2. Python and pandas core question
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Q3. Dsa question combination sum
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Q4. Database queries
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Q1. Question to test your soft skills
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Q2. About behavioral attitude and how likely you are to fit in their organization
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Basic quant and reasoning questions
Selenium MCQ
Java programs with MCQ

Q1. Tell me about yourself
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Q2. Where you initialise driver
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Q3. Driver is static or non static
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Q4. Difference between static and non static
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Q5. Disadvantages of static and non static
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Q6. Parallel execution in TestNG
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Q7. Write the code for Parallel testing in TestNG
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Q8. Difference between parallel methods and parallel tests
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Q9. Upload file using rest assured
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Q10. Postman basic questions
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Q11. Parameter for post method in postman
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Q12. BDD Framework cucumber
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Q13. Cucumber execution process
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Q14. How cucumber know step defination file placed
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Q15. Parameters used in cucumber
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Q16. Datatable in cucumber
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Q17. Have u created the testplan document when porject was started
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Q18. Testing cycle when project was on initial level
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Q19. Risk management and risk based testing
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Q20. Which estimate technique you follow , if fibonacci then why it is in 1 2 3 5 8 13 ?? Not in 12345678
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Q21. What is testing matrix and automation ROI
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Q22. Cicd tool
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Q23. Handle team ?
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Q1. What is the Singleton pattern ? in how many ways can this pattern be broken ?
Ans. 
Singleton pattern ensures a class has only one instance and provides a global point of access to it.
• Singleton pattern can be implemented by making the constructor private and providing a static method to access the instance.

• The pattern can be broken by using reflection to access the private constructor and create multiple instances.

• Another way to break the Singleton pattern is by using multiple class loaders in Java.

• Th...read more
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Q2. What is the internal implementation of hashmap? Let's assume that you want to store duplicate keys in the hashmap, how can we achieve the same in hashmap ?
Ans. 
HashMap internally uses an array of linked lists to store key-value pairs. To store duplicate keys, we can use a custom implementation of HashMap.
• HashMap internally uses an array of linked lists to handle collisions.

• To store duplicate keys, we can create a custom HashMap implementation that allows multiple values for the same key.

• One approach is to use a HashMap with values as lists, where each key can have multiple va
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Q1. What microservices patterns are you aware ? let's assume that there is a microservice based architecture and service A is calling service B which in turn service C. If service b fails, how will you manage ...read more
Ans. 
Use compensating transactions and distributed tracing for managing transaction and logging in case of service B failure.
• Implement compensating transactions to rollback changes made by service B in case of failure.

• Use distributed tracing to track the flow of requests and identify where the failure occurred.

• Implement retry mechanisms to handle transient failures in service B.

• Use circuit breakers to prevent cascading fail...read more
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Q2. System Design question : Design a booking wesite for.eg: bookin.com ?
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Q1. Explain capital markets
Ans. 
Capital markets are where financial securities are bought and sold, including stocks, bonds, and commodities.
• Capital markets facilitate the buying and selling of financial securities such as stocks, bonds, and commodities.

• They provide a platform for companies and governments to raise capital by issuing securities to investors.

• Investors can trade these securities through exchanges like the New York Stock Exchange (NYSE)...read more
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Q2. Explain Reconciliation, explain bond market, futures and options
Ans. 
Reconciliation involves comparing two sets of records to ensure they are in agreement. Bond market, futures, and options are financial instruments used for trading.
• Reconciliation is the process of comparing two sets of records to ensure they are in agreement, typically used in accounting to verify transactions.

• The bond market is where investors buy and sell debt securities issued by governments or corporations, with th...read more
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Q1. How do you handle audit queries
Ans. 
I handle audit queries by thoroughly reviewing the information, communicating effectively with stakeholders, and providing detailed responses.
• Thoroughly review the audit query to understand the scope and requirements

• Communicate with relevant stakeholders to gather necessary information and clarify any doubts

• Provide detailed responses with supporting documentation and explanations

• Follow up on any outstanding queries to
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Q2. How to handle team
Ans. 
Handle team by setting clear expectations, providing support, fostering open communication, and recognizing achievements.
• Set clear expectations and goals for the team members.

• Provide necessary support and resources to help team members succeed.

• Foster open communication and encourage feedback from team members.

• Recognize and reward achievements to motivate the team.

• Address conflicts and issues promptly to maintain a posi
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The aptitude test lasts 30 minutes and focuses on topics relevant to data engineering, including Spark, SQL, Azure, and PySpark.

The coding test is a one-hour examination on PySpark.

Q1. What is the difference between Cache() and Persist()?
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Q2. What does the purpose of the Spark Submit command in Apache Spark?
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Q3. What are window functions in SQL?
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Q1. Could you provide more details about the daily responsibilities associated with this role?
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Q2. How would you describe your work culture?
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Q1. What is the potential of artificial intelligence (AI)?
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Q2. What is advanced Excel?
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Q3. What is the Hardwear Installation
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Q4. What is the software installation process
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Q5. Different between Software and Hardware
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Q1. API related questions. focused on RPA
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Q2. POwer Automate best practice
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Q3. Deployment related questions
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Q4. Diff types of API
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Q5. Multiple datasource use in PA
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Q1. Questions on Jetpack compose, kotlin, hilt, permission, Testing,
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Q1. Questions on mvvm, clean architecture.
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Q1. Client round with questions on android permission, Android security
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Q1. Salary discussed
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I applied through naukri and i got call from hr , the first was Aptitute Round, Basic Aptitude Questions are there and some Programing MCQ is there.

Q1. Write a program for Palindrome String and Number, and Explain the whole logic of that program.
Ans. 
Program to check if a given string or number is a palindrome.
• Create a function to check if a given string is a palindrome by comparing characters from start and end.

• For numbers, convert to string and then apply the same logic as for strings.

• Examples: 'radar' is a palindrome string, 121 is a palindrome number.
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Q2. And Reasoning questions are there the interviewr the Questions are, if there is 8 ball with similar weight and one ball is lighter than rest , if you want to find defected ball how you found , if you can ...read more
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Q1. Tell me about yourself , and about the role , and who take your technical interview , and about family background ,why you want to join that role beacause i am from IT background I am not selected after hr...read more
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