Hanuvel Consultant Unity Developer Interview Questions and Answers

Any ideas for an aptitude test?

Q1. You have a good network connection.
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Q2. Which individuals are currently employed?
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What is education in place?

What is a SQL Server?

Effective communication and any suggestion.

Q1. What is your name?
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Q2. What is your educational background?
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Q1. What type of work does the Deloitte company engage in?
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Q2. What type of work does Deloitte engage in?
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Q1. What is your father's name?
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Q2. What is your father's name?
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Engage with any assignment provided.

Please provide any assignments you have.

Q1. Create one Spring boot controller from end to end. No need to create a spring boot project we just want to see the structure and end to end implementation.
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Q2. Write a java 8 program to get the characters from a string whose count is 2 or more than 2 e.g. input: baseball , output: b, a, l.
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Q3. Why you left your previous organization.
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Q4. What is the functional interface
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Q5. What are the OOPS concepts. and some questions related to inheritance.
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Q6. Asked about the project mentioned in CV (Client project) and asked its architecture.
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Q7. Various SQL join types
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Q1. Are you ready to relocate to job location
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Q2. Why are you leaving your previous organization.
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Q3. Expectation about salary
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Q1. Internal working of HashMap
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Q2. Features of java8
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Q3. Use of synchronized keyword
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Q4. Difference between failsafe and fail fast and also its implementation
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Q5. Coding question : sort an array, use of streams to find names from employee object whose salary is greater than 50000
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Q6. Difference between concurrent and generic collection
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Q7. What is string pool. What is string literal?
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Q8. Security measures used in your project
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Q9. What is difference between rest and soap
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Q10. What do u mean by REST state
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Q11. What is serialization? What is the way to stop serialization?
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Q1. Difference between failsafe and faifast
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Q2. Difference between concurrent and generic collection
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Q3. Security measures used in current project
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Q4. Why you are leaving your current organization and follow up questions on that
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Q1. Java 8 , java 11 and java 17 features?
Ans. 
Java 8 introduced lambda expressions, Java 11 added local-variable syntax for lambda parameters, and Java 17 included sealed classes and pattern matching.
• Java 8 introduced lambda expressions for functional programming.

• Java 11 added local-variable syntax for lambda parameters to simplify code.

• Java 17 included sealed classes to restrict inheritance and pattern matching for instanceof checks and type casts.
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Q2. Dispatcher servlet, design patterns
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Q3. @SpringbootApplication annotation, actuators
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Q4. String Coding question with java 8 features such as lambda function and stream api
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Q5. Number of words in a string
Ans. 
Count the number of words in a given string.
• Split the string by spaces and count the number of resulting elements.

• Handle edge cases like multiple spaces or empty strings.

• Consider punctuation marks as part of words unless specified otherwise.
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Q6. Microservice design patterns
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Q1. Introduced yourself?
Ans. 
I am a Senior Software Developer with 8 years of experience in full-stack development, specializing in Java and Angular.
• 8 years of experience in full-stack development

• Specialize in Java and Angular

• Strong problem-solving skills

• Experience with Agile methodologies

• Excellent communication and teamwork abilities
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Q2. What is the use of the yield() method in threading?
Ans. 
The yield() method in threading is used to give up the CPU and allow other threads to run.
• Allows other threads to run by giving up the CPU temporarily

• Useful for preventing one thread from dominating the CPU

• Can be used to implement cooperative multitasking
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Q3. What is hash collision and how it can be handled?
Ans. 
Hash collision occurs when two different inputs produce the same hash value. It can be handled by using techniques like chaining or open addressing.
• Hash collision is a common issue in hash tables where different keys produce the same hash value.

• One way to handle hash collisions is by using chaining, where each bucket in the hash table stores a linked list of key-value pairs with the same hash value.

• Another way to handl...read more
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Q4. What is use of Method reference instead lambada expressions in java 8?
Ans. 
Method references provide a more concise way to refer to methods by name instead of using lambda expressions.
• Method references can make code more readable and maintainable by reducing boilerplate code.

• They can be used to refer to static methods, instance methods, and constructors.

• Example: list.forEach(System.out::println) is equivalent to list.forEach(item -> System.out.println(item)).
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Q5. What is vertical and horizontal scaling in micro services?
Ans. 
Vertical scaling increases the capacity of a single server, while horizontal scaling adds more servers to distribute the load.
• Vertical scaling involves increasing the resources of a single server, such as CPU, RAM, or storage.

• Horizontal scaling involves adding more servers to distribute the load, often done through containerization or virtualization.

• Vertical scaling is limited by the capacity of a single server, while ...read more
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Q6. Write a java program to make upper case of first letter in the each word in the below String "i am a java programmer"?
Ans. 
Java program to capitalize first letter of each word in a given string
• Split the input string by space to get individual words

• Iterate through each word and capitalize the first letter

• Join the words back together to form the final capitalized string
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Q1. How the escalation matrix works in case of production defects?
Ans. 
Escalation matrix defines the process for escalating production defects based on severity and impact.
• Escalation matrix typically includes levels of escalation, responsible parties at each level, and criteria for escalating defects.

• For example, a Level 1 escalation may involve the development team, while a Level 2 escalation may involve senior management.

• Criteria for escalation may include severity of the defect, impact...read more
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Q2. What is your recent challenging task you have done in current project?
Ans. 
Implemented a real-time data synchronization feature between multiple servers.
• Designed a custom protocol for efficient data transfer

• Implemented server-side logic to handle data conflicts

• Utilized websockets for real-time communication
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Q3. Can you have ability to handle tasks individually?
Ans. 
Yes, I have the ability to handle tasks individually.
• I have a proven track record of successfully completing projects on my own.

• I am self-motivated and can prioritize tasks effectively.

• I have strong problem-solving skills which allow me to tackle challenges independently.
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Q4. Is it okay to give the Deliverables under pressure?
Ans. 
Yes, it is okay to give deliverables under pressure as long as quality is not compromised.
• Meeting deadlines is important in software development.

• Pressure can sometimes lead to increased focus and productivity.

• Communication with stakeholders about realistic timelines is key.

• Prioritizing tasks and managing time effectively can help in delivering under pressure.
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Q1. Introduce yourself?
Ans. 
I am a Senior Software Developer with 8 years of experience in developing web applications using various technologies.
• Experienced in full stack development

• Proficient in languages like Java, JavaScript, and Python

• Skilled in using frameworks like Spring, React, and Django

• Strong understanding of database management systems

• Familiar with Agile development methodologies
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Q2. Why your leaving current company?
Ans. 
Seeking new challenges and growth opportunities.
• Desire for career advancement

• Looking for new challenges

• Seeking better work-life balance

• Company restructuring or changes in management
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Q3. What is your current CTC and expected CTC?
Ans. 
My current CTC is $100,000 and my expected CTC is $120,000.
• Current CTC: $100,000

• Expected CTC: $120,000
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Q4. Do you have all the relevant documents of previous companies?
Ans. 
Yes, I have all relevant documents from previous companies.
• I have copies of offer letters, employment contracts, and performance reviews.

• I also have any relevant certifications or training records.

• I can provide references from previous employers if needed.
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Q1. Coding questions on java8
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Q2. Regarding microservices
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Q3. Internal working of circuit breaker
Ans. 
Circuit breaker is a design pattern used in software development to prevent system failures by temporarily stopping requests to a failing service.
• Circuit breaker monitors the number of failures and opens when a threshold is reached.

• When the circuit is open, requests are not sent to the failing service, preventing further failures.

• After a specified time, the circuit breaker closes and allows requests to be sent again.

• Ex...read more
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Q4. Frequency of occurrence of words
Ans. 
Frequency of occurrence of words in a given text can be calculated by counting each word and storing it in a data structure.
• Split the text into words using whitespace as delimiter

• Create a map to store word frequencies

• Iterate through the words and update the frequency count in the map

• Return the map with word frequencies
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Q5. How spring boot will work two databases
Ans. 
Spring Boot can work with two databases by configuring multiple data sources and using @Primary annotation.
• Configure multiple data sources in application.properties or application.yml

• Use @Primary annotation to specify the primary data source

• Use @Qualifier annotation to specify the secondary data source

• Example: @Configuration @EnableTransactionManagement public class DatabaseConfig { @Primary @Bean(name = "primaryDataSo...read more
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Q1. Admin part and mainly LWC development
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Q2. Case study on devlopment part
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Q1. Last project details and more technical skills and real-time cases
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Q1. Difference between hashmap and hash table
Ans. 
HashMap is non-synchronized and allows null values, while HashTable is synchronized and does not allow null values.
• HashMap is non-synchronized, meaning it is not thread-safe, while HashTable is synchronized and thread-safe.

• HashMap allows null values for both keys and values, while HashTable does not allow null keys or values.

• HashMap is generally preferred for non-thread-safe applications, while HashTable is used in mul
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Q2. Static block related questions
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Q3. Arraylist and linkedlist question
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