Apollo Global Management Interview Questions and Answers

Basic JavaScript output-based questions were presented in the form of multiple-choice questions (MCQs).

Q1. What is custom diractives in Angular
Ans. 
Custom directives in Angular allow you to create reusable components with custom behavior.
• Custom directives are used to extend the functionality of HTML elements in Angular.

• They can be used to create reusable components with custom behavior.

• Directives are markers on a DOM element that tell Angular to attach a specified behavior to that DOM element or even transform the DOM element and its children.

• Examples include crea...read more
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Q2. What is pipes in Angular
Ans. 
Pipes in Angular are used for transforming data in templates.
• Pipes are used to format data before displaying it in the view.

• They can be used to filter, sort, or transform data in various ways.

• Examples include currency, date, uppercase, and lowercase pipes.
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Q3. What is interceptor in Angular
Ans. 
An interceptor in Angular is a service that can be used to intercept and modify HTTP requests and responses.
• Interceptors can be used to add headers, modify requests, handle errors, etc.

• They are implemented as classes that implement the HttpInterceptor interface.

• Interceptors are added to the HttpClientModule providers array in the app module.

• Example: LoggingInterceptor implements HttpInterceptor to log all HTTP requests
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Q1. Do you know writing Unit test case?
Ans. 
Yes, I am familiar with writing unit test cases to ensure code quality and functionality.
• I have experience writing unit test cases using testing frameworks like JUnit, NUnit, or pytest.

• I understand the importance of writing testable code and creating comprehensive test suites.

• I can write test cases to cover different scenarios, including edge cases and boundary conditions.

• I know how to use mocking frameworks like Mocki...read more
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Q2. What state management library do you have used?
Ans. 
I have used Redux for state management in my previous projects.
• Redux is a predictable state container for JavaScript apps.

• It helps in managing the state of the application in a single immutable state tree.

• Actions are dispatched to update the state and components can subscribe to changes.

• Selectors can be used to efficiently extract data from the state tree.

• Middleware can be added to handle asynchronous actions.

• Example:
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Q1. What is your expected Salary?
Ans. 
My expected salary is based on my experience, skills, and the market rate for Software Development Engineers.
• Research the average salary for Software Development Engineers in the specific location and industry

• Consider your years of experience and level of expertise

• Factor in any additional benefits or perks offered by the company

• Be prepared to negotiate based on the job responsibilities and requirements
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Q2. How soon would you be able to join if you receive the offer letter today?
Ans. 
I can join within 2 weeks of receiving the offer letter.
• I can start within 2 weeks of receiving the offer letter.

• I need to give notice at my current job before starting.

• I may need to relocate, which could affect my start date.
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