Finastra Full Stack Developer Interview Questions and Answers

Few coding tasks asked like palindrome number
Factorial
Basic concept tests based on DSA
Like prove that set is unordered

Q1. If a glass is started filling with water by 1ml at 0sec and gets doubled at every successive second, at what second the glass is half full
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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
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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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Written coding test
Basic coding questions
Only c c++
Easy level

Q1. Bit manipulation
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Q2. Rtos concepts,c coding concepts like structures,pointers
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Q1. About projects more detailly
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Q2. About memory management and layout in c
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In first round 4 coding question like 1 dsa 2 database and one is api and question is very simple . coding round was conducted in hackerrank

Q1. DSA QUESTION LIKE TREE AND GRAPH
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Q2. DP AND SORTING APPROACH
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Again same but dsa question and oops concept in deep level

Q1. Rest Apis questions
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Q1. Core java and OOPS and LLD
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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

Q1. What is inheritance?
Ans. 
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Allows a class to reuse code from another class

• Creates a parent-child relationship between classes

• Derived class inherits attributes and methods from base class
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Q2. What is oop principles?
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OOP principles are the fundamental concepts of object-oriented programming that help in designing and implementing software solutions.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

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

• Polymorphism: The ability of objects to take on multiple forms or have multiple behaviors.

• Abstraction: Hiding t...read more
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Q3. What is polymorphism principle?
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Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or objects.

• Examples include method overloading and method overriding in object-oriented programming languages like Java.
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