Binary Semantics Senior Software Developer Interview Questions and Answers

Q1. Oops concepts,Exception handling,singleton class
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Q2. Spring boot questions
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Q1. Asked in detail about earlier projects
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Q2. What is microservice and what's the use of it?
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Microservices are small, independent services that work together to form a larger application.
• Microservices allow for greater flexibility and scalability in software development.

• Each microservice can be developed, deployed, and scaled independently.

• Microservices communicate with each other through APIs.

• Examples of companies using microservices include Netflix, Amazon, and Uber.
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Q3. How we can secure microservices?
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Microservices can be secured by implementing authentication, authorization, encryption, and monitoring.
• Implement authentication and authorization to ensure only authorized users can access the microservices.

• Use encryption to protect sensitive data in transit and at rest.

• Implement monitoring to detect and respond to security threats.

• Use secure communication protocols such as HTTPS and TLS.

• Implement rate limiting to prev...read more
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Q4. Some spring boot annotation related questions like RestController
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Q5. About RestTemplate
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Q6. Questions about design patterns like Singleton and Factory pattern and scenarios where you can use these pattern.
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Q7. About Circuit breaker
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Q8. How you handle Exceptions in Microservice?
Ans. 
Exceptions in Microservices are handled by logging, returning error codes, and using circuit breakers.
• Log exceptions with relevant details for debugging purposes

• Return appropriate error codes to the client

• Use circuit breakers to prevent cascading failures

• Implement retry mechanisms for transient errors

• Use fallback mechanisms to provide a degraded service when necessary
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Q9. OOPs concepts like method overloading, overriding, abstract class, interface
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Q10. Cloud Technologies if used any.
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Yes, I have experience working with cloud technologies such as AWS and Azure.
• I have worked with AWS services such as EC2, S3, RDS, and Lambda.

• I have also worked with Azure services such as Virtual Machines, Blob Storage, and Functions.

• I am familiar with cloud deployment models such as Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).
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Q1. What are the guidelines to follow to write better code.
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Guidelines for writing better code
• Follow coding standards and conventions

• Write modular and reusable code

• Use meaningful variable and function names

• Write comments to explain complex logic

• Test code thoroughly before deployment
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Q2. Any situation where you faced challenge and solved it by yourelf.
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Technical questions with coding test on real time scenarios.

Q1. More deep technical questions. And çode writing
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Q2. Integration questions
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Q3. Customization and settings
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Q4. Deploymentquestion
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Q1. Salary negotiation
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Data structures and algorithms include concepts such as reversing a linked list and working with doubly linked lists. LeetCode problems where they are are given one hour to write code on paper.

Q1. Basic technical concepts based on resume skills mentioned by you
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Q2. Sql queries like fetching duplicate salaries in the employee table
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Q1. Behavioral questions
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Group discussion was the first round on avg there were 15 people in a group discussion at last everyone was given a minute to speak

Q1. Tell me about yourself?
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Q2. Where do you see yourself in five years?
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Q3. Tell me about your family?
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Q4. Do you plan on Higher education?
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Q1. Questions on OOPs concept
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Q2. Sort the array by parity
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Q3. Write SQL queries
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Q4. Who wrote the book discovery of the nation
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Q5. What is the official language of kashmir
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Q6. Which city is called city of lakes
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Q1. Find the length of the longest word in the length
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Q2. Push the zeroes in the arrays to the end
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Q3. When was python launched
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Q4. What is name of ai from meta/google/amazon
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Q5. What do you do in your free time
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Q6. Tell me your pros and cons
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There were simple aptitude questions and core java MCQS

Q1. What's OOPs concept
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding th...read more
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Q2. Explain Inheritance
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Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can override or extend the functionality of the base class

• Example: Class 'Car' can inherit from class 'Vehicle' and inh...read more
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Q3. Basic Java output questions
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Q1. Interviewer asked me to introduce and then he asked about my education and family details and then he told me about company.
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Q1. What is Observables, Services, Promises, Closure ?
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