TSYS|Total System Services Full Stack Developer Interview Questions and Answers

Mixed of aptitude,coding, computer science

Q1. Tell me about yourself
Ans. 
I am a Full Stack Developer with 5 years of experience in building web applications using various technologies.
• 5 years of experience in Full Stack Development

• Proficient in front-end technologies like HTML, CSS, JavaScript

• Strong knowledge of back-end technologies like Node.js, Express, MongoDB

• Experience with frameworks like React and Angular

• Familiar with version control systems like Git
Answered by AI
Add your answer
Q2. What are the CSS framework
Ans. 
CSS frameworks are pre-written CSS code that helps developers quickly style their websites.
• CSS frameworks provide pre-designed styles and components for faster development

• Popular CSS frameworks include Bootstrap, Foundation, and Bulma

• Frameworks help ensure consistency and responsiveness across different devices
Answered by AI
Add your answer

Round duration - 60 Minutes
Round difficulty - Medium

This round had questions mainly from Java 8 and its important features followed by some questions from Spring Boot.

Q1. What are Java 8 streams?
Ans. 
Java 8 streams are a sequence of elements that can be processed in parallel or sequentially.
• Streams provide a functional programming approach to process collections in Java.

• They allow for concise and expressive code.

• Streams can be used to filter, map, reduce, and perform other operations on data.

• Example: List numbers = Arrays.asList(1, 2, 3, 4, 5); numbers.stream().filter(n -> n % 2 == 0).forEach(System.out::println);

• T...read more
Answered by AI
Add your answer
Q2. Write a Java 8 program to iterate through a Stream using the forEach method.
Ans. 
A Java 8 program to iterate a Stream using the forEach method.
• Create a Stream object from a collection or array

• Use the forEach method to perform an action on each element of the Stream

• The action can be a lambda expression or a method reference
Answered by AI
Add your answer
Q3. How does Spring Boot work?
Ans. 
Spring Boot is a framework that simplifies the development of Java applications by providing default configurations and dependencies.
• Spring Boot eliminates the need for manual configuration by providing sensible defaults.

• It uses an embedded server, such as Tomcat or Jetty, to run the application.

• Spring Boot automatically configures the application based on the dependencies added to the project.

• It promotes convention ov...read more
Answered by AI
Add your answer
Q4. What is dependency injection?
Ans. 
Dependency Injection is a design pattern where the dependencies of a class are provided externally rather than being created within the class itself.
• Dependency Injection helps in achieving loose coupling between classes.

• It allows for easier testing and maintenance of code.

• In Spring Boot, dependencies are injected using annotations like @Autowired.

• Example: In a Spring Boot application, if a class requires a database con...read more
Answered by AI
Add your answer
Q5. Can you explain the @RestController annotation in Spring Boot?
Ans. 
The @RestController annotation in Spring Boot is used to mark a class as a RESTful controller.
• It combines the @Controller and @ResponseBody annotations.

• It eliminates the need for annotating each method with @ResponseBody.

• It automatically serializes the return value of the methods into JSON/XML response.

• It is commonly used to build RESTful web services in Spring Boot.
Answered by AI
Add your answer
Q6. What are the different methods of session management in Servlets?
Ans. 
Different methods of session management in Servlet
• Cookies

• URL Rewriting

• Hidden Form Fields

• Session Tracking API

• HTTP Session
Answered by AI
Add your answer

Round duration - 60 Minutes
Round difficulty - Medium

This was a preety much mixed round ranging questions from Java , MVC to DBMS , Web Security and API Design. More emphasis was given on the fundamentals of the subject rather than the advanced topics.

Q1. What is CORS in MVC and how does it work?
Ans. 
CORS in MVC is Cross-Origin Resource Sharing, a mechanism that allows restricted resources on a web page to be requested from another domain.
• CORS is a security feature implemented in web browsers to prevent cross-origin requests by default.

• It works by adding specific HTTP headers to the server's response, indicating which origins are allowed to access the resources.

• In MVC, CORS can be configured using the 'EnableCors' ...read more
Answered by AI
Add your answer
Q2. Can you explain in brief the role of different MVC components?
Ans. 
MVC components include Model, View, and Controller. Model represents data and business logic, View displays the data, and Controller handles user input and updates the Model and View.
• Model: Represents data and business logic

• View: Displays the data to the user

• Controller: Handles user input and updates the Model and View
Answered by AI
Add your answer
Q3. What is the difference between a clustered index and a non-clustered index?
Ans. 
Clustered index determines the physical order of data in a table, while non-clustered index has a separate structure.
• Clustered index determines the physical order of data in a table

• Non-clustered index has a separate structure that includes a copy of the indexed columns and a pointer to the actual data

• A table can have only one clustered index, but multiple non-clustered indexes

• Clustered index is faster for retrieving la...read more
Answered by AI
Add your answer
Q4. What is SQL injection?
Ans. 
SQL injection is a web security vulnerability that allows an attacker to manipulate a database query to execute unauthorized actions.
• SQL injection occurs when user-supplied data is not properly validated or sanitized before being used in an SQL query.

• Attackers can exploit this vulnerability to bypass authentication, retrieve sensitive data, modify or delete data, or even execute arbitrary commands.

• To prevent SQL inject...read more
Answered by AI
Add your answer
Q5. What are the advantages of web services?
Ans. 
Web services offer advantages such as interoperability, scalability, reusability, and platform independence.
• Interoperability: Web services allow different applications to communicate and share data regardless of the programming languages or platforms they are built on.

• Scalability: Web services can handle a large number of requests and can be easily scaled up or down to meet changing demands.

• Reusability: Web services pr...read more
Answered by AI
Add your answer

Round duration - 45 Minutes
Round difficulty - Medium

This round started with some questions from Frontend Web Development primarily from HTML and CSS followed by some questions from DevOps and Git. The interviewer was quite satisfied by my answers and overall this round went preety well.

Q1. How can you optimize the loading of website assets?
Ans. 
Optimize website assets loading by minimizing file sizes, leveraging caching, and using asynchronous loading.
• Minimize file sizes by compressing images, minifying CSS and JavaScript files

• Leverage caching by setting appropriate cache headers and using a content delivery network (CDN)

• Use asynchronous loading techniques such as lazy loading, deferred loading, and async/defer attributes

• Combine and bundle multiple files to r...read more
Answered by AI
Add your answer
Q2. What are the new tags for media elements introduced in HTML5?
Ans. 
The new tags in Media Elements in HTML5 are
• The

• The

• Both tags support various attributes and can be styled using CSS.

• Example:

• Example:
Answered by AI
Add your answer
Q3. Can you explain a use case for Docker?
Ans. 
Docker is a containerization platform that allows developers to package applications with their dependencies for easy deployment and scalability.
• Docker enables developers to create lightweight, isolated containers that can run on any operating system.

• It simplifies the deployment process by ensuring that the application and its dependencies are bundled together, eliminating compatibility issues.

• Docker allows for easy sc...read more
Answered by AI
Add your answer
Q4. What is the difference between 'git pull' and 'git fetch'?
Ans. 
Git pull combines git fetch and git merge, while git fetch only downloads new data from a remote repository.
• Git pull is used to update the local branch with the latest changes from the remote repository.

• Git fetch only downloads new data from the remote repository, but does not integrate it into the local branch.

• Git pull is a combination of git fetch and git merge commands.

• Git fetch is useful to see what changes have be...read more
Answered by AI
Add your answer

Q1. Why do you want to switch
Ans. 
I want to switch to explore new technologies and challenges in a different industry.
• Interested in learning new skills and technologies

• Seeking new challenges and opportunities for growth

• Want to explore different industry perspectives
Answered by AI
Add your answer
Q2. Salry expectations
Add your answer

Q1. Question on oop concepts
Add your answer
Q2. Coding questions
Add your answer

Asked about data structures

Asked about java programmes

Q1. Tell me about your self
Ans. 
I am a passionate software developer with 5 years of experience in developing web applications using Java, Spring, and Angular.
• 5 years of experience in software development

• Proficient in Java, Spring, and Angular

• Passionate about coding and problem-solving
Answered by AI
Add your answer
Q2. Are you ready to relocate
Ans. 
Yes, I am open to relocating for the right opportunity.
• I am willing to relocate for the right job opportunity that aligns with my career goals.

• I have experience moving for previous jobs and am comfortable with the process.

• I am excited about the possibility of exploring a new city or country and experiencing a different culture.
Answered by AI
Add your answer

Q1. On demand video assessment that include questions to answer.
Add your answer
Q2. Games designed to test different ability.
Add your answer

It continues for 15 mins

Q1. Basic core Java question
Add your answer
Q2. Sql query based question
Add your answer

Q1. Normal coding question and work experience based question
Add your answer