Robosoft Technologies Interview Questions and Answers

Q1. Pass one data from parent to child component
Ans. 
Passing data from parent to child component in React
• Use props to pass data from parent to child component

• Define a prop in the parent component and pass it to the child component

• Access the prop in the child component using this.props

• Example:
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Q2. Basic of Angular
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Q1. How do you code optimization
Ans. 
Code optimization involves improving the efficiency and performance of software by reducing resource usage and execution time.
• Identify and eliminate bottlenecks in the code

• Use efficient algorithms and data structures

• Minimize unnecessary computations and memory usage

• Optimize database queries and network communication

• Profile and analyze code to identify areas for improvement
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Q2. Ionic build step to release android and ios
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Ionic build step to release Android and iOS
• To release an Ionic app for Android, use the command 'ionic cordova build android --release'

• To release an Ionic app for iOS, use the command 'ionic cordova build ios --release'

• For Android, you will need a keystore file and signing configuration

• For iOS, you will need a valid provisioning profile and certificate
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Q3. Ionic Lifecycle
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Q1. Reasons for lefting last company
Ans. 
I left my last company to seek new challenges, professional growth, and a better alignment with my career goals.
• Career Advancement: I was looking for opportunities to take on more leadership roles, which were limited in my previous position.

• Skill Development: I wanted to work with newer technologies and frameworks that were not being utilized at my last company, such as cloud computing and microservices.

• Cultural Fit: I...read more
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Q2. How do you manage work with work from home
Ans. 
Working from home requires discipline, effective communication, and a structured routine to maintain productivity and work-life balance.
• Establish a Dedicated Workspace: I set up a specific area in my home for work to minimize distractions and create a professional environment.

• Maintain a Routine: I stick to a consistent schedule, starting my day at the same time and taking regular breaks to stay focused and energized.

• Us...read more
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Q1. What is data-driven testing?
Ans. 
Data-driven testing is a testing methodology where test input and output values are stored in data files or databases.
• Test cases are designed based on input and output data stored in external files or databases.

• Allows for easy maintenance and scalability of test cases by separating test data from test scripts.

• Helps in reusability of test scripts with different sets of data.

• Commonly used in automation testing to perform...read more
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Q2. Difference between HashMap and HashTable
Ans. 
HashMap is non-synchronized and allows null values, while HashTable is synchronized and does not allow null values.
• HashMap is non-synchronized, meaning it is not thread-safe, while HashTable is synchronized and thread-safe.

• HashMap allows null values for both keys and values, while HashTable does not allow null keys or values.

• HashMap is generally preferred for non-thread-safe applications, while HashTable is used in mul...read more
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Q3. What do DependsOn Method do in TestNG
Ans. 
DependsOn Method in TestNG is used to specify the methods that this method depends on to run successfully.
• Allows to specify the methods that need to be executed before the current method

• If any of the methods specified in DependsOn fails, the current method will be skipped

• Helps in maintaining the order of test methods execution
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Q4. What is a content type mismatch in an API?
Ans. 
Content type mismatch in an API occurs when the expected content type of a request or response does not match the actual content type.
• Occurs when the content type specified in the request headers does not match the content type of the data being sent or received

• Can lead to errors in processing the data or displaying it correctly

• For example, sending JSON data with a content type of 'application/xml' in the request heade...read more
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Q5. What is the Java Selenium code to validate the new price and old price of mobile phones on Amazon?
Ans. 
Use Java Selenium code to validate new and old prices of mobile phones on Amazon.
• Use WebDriver to open Amazon website

• Locate the elements for new and old prices using XPath or CSS selectors

• Get the text of both elements and compare them to validate
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Q6. Write a Java program for generating permutations and combinations of any given string
Ans. 
Java program to generate permutations and combinations of a given string
• Use recursion to generate permutations and combinations

• Create a function to swap characters in the string

• Use a HashSet to store unique permutations and combinations
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Q7. How will you validate any API through Rest assure, write a script for it
Ans. 
Validating APIs using Rest Assured involves writing scripts to send requests and verify responses.
• Use Rest Assured library to send HTTP requests and validate responses

• Write test scripts using given(), when(), then() methods to set up request, send request, and validate response

• Verify status code, response body, headers, etc. in the script

• Use assertions to check expected values against actual values
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Q1. React Coding Question
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Q2. React Hooks and Life Cycle
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Q1. How to Improve Performance of a Web application
Ans. 
Improving web application performance involves optimizing code, reducing network requests, and utilizing caching techniques.
• Optimize code by removing unnecessary code, using efficient algorithms, and minimizing DOM manipulation.

• Reduce network requests by combining files, using asynchronous loading, and implementing lazy loading.

• Utilize caching techniques such as browser caching, server-side caching, and CDN caching to ...read more
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Q2. What are all the things you take care when you start a new project
Ans. 
When starting a new project, I focus on planning, setting up the environment, defining requirements, choosing technologies, and establishing coding standards.
• Plan the project scope and requirements

• Set up the development environment

• Choose the appropriate technologies and frameworks

• Establish coding standards and best practices

• Define project timelines and milestones
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Q3. Old Projects and Responsibilites
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30 min test about core concept and some code snippets

Q1. About project structure and folder names
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Q2. About specific domain and strategy
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Q1. About family and location
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Q2. About previous company
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