Nisum Interview Questions, Process, and Tips

Q1. Find xpath for Web elements on website
Ans. 
XPath is a way to navigate through elements on a webpage using their attributes.
• Inspect the element on the webpage to identify unique attributes like id, class, name, etc.

• Construct the XPath using the unique attributes to locate the element.

• Use tools like Chrome Developer Tools or Firebug to help generate XPath.

• Avoid using absolute XPath as they can be brittle and prone to breaking.

• Consider using relative XPath for bet
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Q2. Questions on collections
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Q3. Questions on getwindowhandles and frames
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Q4. Java program oops concepts
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Q1. Technical discussion
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Q2. Devops with cloud
Ans. 
DevOps with cloud involves integrating development and operations processes with cloud technologies.
• Implementing continuous integration and continuous deployment (CI/CD) pipelines using cloud services like AWS CodePipeline or Azure DevOps

• Automating infrastructure provisioning and management using tools like Terraform or CloudFormation

• Monitoring and logging applications and infrastructure using cloud-native tools like C
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Q1. Managerial round with technical questions
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Q2. Process based questions
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Q1. Casual HR discurssion
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Q2. NP, salary etc etc
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Q1. Java program for unique character in string
Ans. 
Java program to find unique characters in a string
• Create a boolean array of size 256 to track character occurrences

• Iterate through the string and mark characters as seen in the array

• Check if a character has already been seen before marking it as unique
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Q2. Hashmap ,selenium,jmeter
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Q1. Basic oops, proguard, gradle in Android
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Q2. Sealed classes, SSL pinning
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Q3. Coroutines in kotlin
Ans. 
Coroutines in Kotlin are a way to perform asynchronous programming in a more concise and readable manner.
• Coroutines allow for easy handling of asynchronous tasks without the complexity of callbacks or traditional threading.

• They can be used to perform long-running tasks without blocking the main thread.

• Coroutines can be cancelled or paused/resumed easily, making them very flexible for handling different scenarios.
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Q1. Core Java, Java 8, Collections
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Q2. Kafka, Microservices
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Q1. SQL, NoSQL, Java 8, Design patterns
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Q1. Project experience, Microservices
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The first round was coding conducted in hackerrank

Q1. Explain OOPS Concepts
Ans. 
OOPS Concepts refer to Object-Oriented Programming principles like Inheritance, Encapsulation, Polymorphism, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

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

• Abstraction: Hiding the complex implementation detail
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Q2. Explain method overloading and method overriding
Ans. 
Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
• Method overloading allows multiple methods with the same name but different parameters in the same class.

• Method overriding involves a subclass providing a specific implementation of a method that is...read more
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Q1. Basic questions about Swift
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