Cedcoss Technologies Full Stack Developer Interview Questions and Answers

Q1. Very basic top 50 questions on internet, basic java, inheritance, oops, solid, collections
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Q2. Diff between abstract and interface, method overloading, overriding, microservices, how do microservice communicate
Ans. 
Abstract class is a class that cannot be instantiated, while an interface is a blueprint of a class with only abstract methods.
• Abstract class cannot be instantiated, but can have both abstract and non-abstract methods.

• Interface can only have abstract methods and cannot have method implementations.

• Method overloading is having multiple methods in the same class with the same name but different parameters.

• Method overridin...read more
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Q3. Spring boot annotations, DI, hibernate, bean scopes
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Q4. Fibonacci series print
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Q1. Project, Oops Concept, Java , which technology u have used ? Framework
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Q2. Framework, Explain Long Polling ,
Ans. 
Long polling is a web technique where the client sends a request to the server and the server holds the connection open until new data is available.
• Long polling is a variation of the traditional polling technique where the client sends a request to the server and the server keeps the connection open until new data is available.

• It is often used in web applications to simulate real-time updates without the need for const...read more
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Q3. GraphQL Vs Rest
Ans. 
GraphQL is a query language for APIs that allows clients to request only the data they need, while REST is an architectural style for designing networked applications.
• GraphQL allows clients to request specific data in a single request, reducing over-fetching and under-fetching of data.

• REST uses multiple endpoints for different resources, leading to multiple requests for related data.

• GraphQL provides a strongly typed sc...read more
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Q1. Basic java and Angular questions
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Q1. String based questions in java
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Q2. What are the fundamental concepts of Java?
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Java based questions and few DSA questions

1st round is aptitude and pesudocode

Q1. Mostly python questions
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Q2. List questions and basic to mediumprogram
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Q1. Questions were completely based on data structures and algorithm
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Q2. SQL based questions were also asked
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Q1. Something based on hashet
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Q2. Same with this too
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Basic questions were given..bar graphs,pie charts