Nexus Software Interview Questions and Answers

Q1. What are some of the Design Patterns you have worked with?
Add your answer
Q2. What is your approach for a issue you came to know happened in Production.
Add your answer
Q3. If given a chance to lead a team will you take it up as a challenge of not how would you tackle it?
Add your answer
Q4. Are you able to work under pressure. How do you manage?
Add your answer
Q5. What do you understand by SOLID principle? Why do you think it is important.
Add your answer
Q6. Please solve the coding question provided ( a moderately difficult coding question provided). Help understand your approach and why you chose same. Explain edge caes if possible.
Add your answer

A sequence was provided: 4181, 2684, 1597, 987, 610.
first 2 are given and write code for other value calculation using java 8

The second question required writing a reverse of a palindrome using both Java 8 streams. I was able to successfully write both and clear the first round.

Q1. Interviewer was himself not knowing anything as it was walkin drive he was sitting infront of me and checking questions on phone Introduction that he inturrepted in between when I was introducing myself
Add your answer
Q2. What are the features of Java 17, specifically related to sealed classes, including their syntax and necessity, along with the potential errors encountered when invoking a sealed class?
Ans. 
Java 17 introduces sealed classes to restrict inheritance and improve code maintainability.
• Sealed classes are declared using the 'sealed' keyword followed by the permitted subclasses.

• Subclasses of a sealed class must be either final or sealed themselves.

• Errors may occur when trying to extend a sealed class with a non-permitted subclass.
Answered by AI
Add your answer
Q3. Java 8 feathers stream api, functional interface, Intermittent operator ,Ternary operator, Prediction,Bi predicate. Answered all successfully
Add your answer
Q4. Draw low level design of implementation of notify me if item is back in stock in a ecommerce application
Ans. 
Implementation of 'notify me if item is back in stock' feature in an ecommerce application
• Create a database table to store user notifications for out-of-stock items

• Implement a service to check item availability and send notifications to subscribed users

• Provide a user interface for users to subscribe to notifications for specific items
Answered by AI
Add your answer
Q5. All design patterns which I know. Asked me to implement adapter pattern on paper
Add your answer
Q6. Then given a problem that concurrent way perform operation on excell to decrease the response time
Add your answer

Q1. What is a polymorphism?
Add your answer
Q2. Can you explain difference between == and euqals()?
Add your answer
Q3. What is dependency inversion?
Add your answer
Q4. Can you explain ACID?
Add your answer
Q5. Please tell me about isolation levels
Add your answer

Q1. What special attributes do you possess that make you a perfect fit for this role, considering that many individuals can perform car service?
Ans. 
I possess excellent communication skills, problem-solving abilities, and a strong customer-centric approach.
• Strong communication skills to effectively interact with customers and address their concerns

• Proven problem-solving abilities to quickly resolve issues and provide satisfactory solutions

• Customer-centric approach to prioritize customer satisfaction and build positive relationships

• Ability to remain calm and compose...read more
Answered by AI
Add your answer
Q2. What skills do you possess that are relevant to the execution of this role?
Ans. 
I possess strong communication skills, problem-solving abilities, and a customer-centric approach.
• Excellent communication skills to effectively interact with customers and address their concerns

• Strong problem-solving abilities to quickly resolve issues and provide solutions

• Customer-centric approach to ensure customer satisfaction and retention

• Ability to remain calm and patient in challenging situations

• Experience in han...read more
Answered by AI
Add your answer
Q3. What attracted you to choose this company as your new employer?
Ans. 
The company's strong reputation for excellent customer service and commitment to employee development attracted me.
• Reputation for excellent customer service

• Commitment to employee development

• Positive reviews from current and former employees
Answered by AI
Add your answer
Q4. What's your salary expectations
Ans. 
My salary expectations are in line with industry standards and based on my experience and qualifications.
• Research industry standards for the position

• Consider my experience and qualifications

• Be prepared to negotiate based on job responsibilities and benefits package
Answered by AI
Add your answer

Q1. Do you have experience
Ans. 
Yes, I have 3 years of experience in customer service roles.
• Worked as a customer service representative for 2 years at Company X

• Handled customer inquiries, resolved complaints, and processed orders

• Trained new employees on customer service best practices
Answered by AI
Add your answer
Q2. Are you dedicated to this role
Ans. 
Yes, I am dedicated to this role and committed to providing excellent customer service.
• I have a strong work ethic and always strive to exceed customer expectations

• I am willing to go above and beyond to resolve customer issues and ensure their satisfaction

• I am constantly seeking ways to improve my skills and knowledge in order to better serve customers
Answered by AI
Add your answer

Integrity and honesty

Q1. What is interface? And why we use it?
Add your answer
Q2. Why we write WebDriver driver = new ChromeDriver();
Add your answer
Q3. WAP to reverse a string without reversing the numbers and symbols in the string.
Add your answer

Q1. What is the architecture of the Java Virtual Machine (JVM)?
Ans. 
The Java Virtual Machine (JVM) is an abstract computing machine that enables a computer to run Java programs.
• JVM is platform-independent and converts Java bytecode into machine code.

• It consists of class loader, runtime data areas, execution engine, and native method interface.

• JVM memory is divided into method area, heap, stack, and PC register.

• Examples of JVM implementations include Oracle HotSpot, OpenJ9, and GraalVM.
Answered by AI
Add your answer
Q2. What is the default connection pooling in Spring Boot, and how can it be customized?
Ans. 
The default connection pooling in Spring Boot is HikariCP, which can be customized through properties in the application.properties file.
• HikariCP is the default connection pooling library in Spring Boot, known for its high performance and low overhead.

• To customize the connection pooling, you can modify properties like 'spring.datasource.hikari.*' in the application.properties file.

• For example, you can set maximum pool ...read more
Answered by AI
Add your answer
Q3. What are the best practices for optimizing a Spring Boot application?
Ans. 
Best practices for optimizing a Spring Boot application
• Use Spring Boot Actuator to monitor and manage application performance

• Implement caching mechanisms like Spring Cache to reduce database calls

• Optimize database queries and indexes for better performance

• Use asynchronous processing with Spring's @Async annotation for non-blocking operations

• Profile and analyze application performance using tools like VisualVM or JProfi
Answered by AI
Add your answer
Q4. What is a heap dump, and how can it be used to identify memory leaks?
Ans. 
A heap dump is a snapshot of the memory usage of a Java application at a specific point in time.
• Heap dumps can be generated using tools like jmap or VisualVM.

• They provide detailed information about objects in memory, their sizes, and references.

• Analyzing a heap dump can help identify memory leaks by pinpointing objects that are consuming excessive memory.

• Common signs of memory leaks in a heap dump include a large numbe...read more
Answered by AI
Add your answer
Q5. How can you diagonally iterate through and print the elements of a 2D array?program
Ans. 
Diagonally iterate through and print elements of a 2D array of strings.
• Use nested loops to iterate through rows and columns of the 2D array.

• Calculate the diagonal elements by incrementing row and column indices together.

• Print the elements as you iterate through the diagonal of the array.
Answered by AI
Add your answer

Bachelor of Commerce degree with a GPA of 6.79 and an accompanying resume.

Q1. Location send Hyderabad komplly
Add your answer
Q2. Hardwark honest project
Add your answer
Q3. First introducedy
Add your answer
Q4. Salarypackge and times
Add your answer
Q5. Respect to office staff
Add your answer

Q1. What is circuit breakers
Add your answer
Q2. What is difference contractor or relay
Add your answer
Q3. What is difference neutral or earthing
Add your answer
Q4. What is star or delta
Add your answer
Q5. What is use contractor
Add your answer