FNZ Technical Analyst Interview Questions and Answers

1. One question regarding the MaxPartitions for a given array, if array is [4, 3, 2, 6 , 5, 10, 9] => upon sorting it appears like [2, 3, 4, 5, 6, 7, 9, 10] ..Max slices are [2,3,4] [5, 6] [9, 10] so slice count is 3

2. Another one Max integer upon removal 5 digit

Q1. Two technical rounds happened 1. One technical round : It was all about the Architecture , Design patterns on Microservices like CircuitBreaker etc and also security concepts, 2. Another technical round...read more
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Q1. What is different between abstract class and Interface
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructors, fields, and methods, while interface cannot have any implementation.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used to define a common base class for related classes, while interfaces are used to define a con...read more
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Q1. What is OOPs concept
Ans. 
OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs focuses on creating objects that interact with each other to solve complex problems

• Key principles include encapsulation, inheritance, polymorphism, and abstraction

• Encapsulation allows data hiding and bundling of data with methods that operate on that data

• Inheritance enables a new class to i...read more
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Q1. Recursion program
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Q2. System Design questions based on current project
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Q3. Micro service design patterns
Ans. 
Micro service design patterns are architectural patterns used to design and implement microservices.
• Service discovery

• Circuit breaker

• API gateway

• Event sourcing

• Saga pattern
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Q1. System Design question relating scale the services
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Q1. What is an abstract class?
Ans. 
An abstract class is a class that cannot be instantiated and may contain abstract methods.
• Cannot be instantiated directly

• May contain abstract methods that must be implemented by subclasses

• Can have both abstract and non-abstract methods

• Used to define a common interface for subclasses
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Q2. Difference between interface and abstract class?
Ans. 
Interface is a contract with no implementation, while abstract class can have some implementation.
• Interface cannot have any implementation, only method signatures.

• Abstract class can have both abstract and concrete methods.

• A class can implement multiple interfaces but can inherit only one abstract class.

• Interfaces are used to achieve multiple inheritance in Java.

• Example: interface Shape { void draw(); } vs abstract clas...read more
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Q3. What are resources and styles?
Ans. 
Resources are tools or assets used to achieve a goal, while styles refer to the way in which something is done or presented.
• Resources can include materials, equipment, personnel, or financial assets.

• Styles can encompass different approaches, methods, techniques, or aesthetics.

• For example, in software development, resources may include programming languages and libraries, while styles may refer to coding conventions and
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Q1. Expected salary
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Q2. Why do you wish to change the organisation
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Q1. Basic work related questions
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Q1. Depends on which technology you’re working on
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Q1. Casual interview to check behaviour and communication
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Q1. Experience and salary related questions
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Q1. Be through with whatever is being worked if experienced
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Q1. Presentation of given topic
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