10+ AECOM Interview Questions and Answers

Yes, data can be sent from a get request to the server using query parameters or request headers.

• Query parameters can be added to the URL in a get request to send data to the server.

• Request headers can also be used to send data in a get request.

• Example: http://example.com/api/data?param1=value1¶m2=value2

To implement Map in Flutter, use the Google Maps Flutter plugin and follow the documentation.

• Use the Google Maps Flutter plugin to integrate maps in your Flutter app

• Follow the plugin documentation for step-by-step instructions on implementing maps

• Add API keys and configure map settings as needed

To fetch and store data from server, use HTTP requests to retrieve data and local storage to save it.

• Use HTTP requests like GET, POST, PUT, DELETE to fetch data from server

• Parse the response data and store it locally using shared preferences, SQLite, or other local storage options

• Implement error handling and data caching for better user experience

Django signals are a way for decoupled applications to get notified when certain actions occur elsewhere in the application.

• Django signals allow certain senders to notify a set of receivers when some action has taken place.

• They are used for decoupling various components of a web application.

• Signals are useful for executing code based on certain events, such as user login, object creation, etc.

• Example: Sending an email notification to the admin whenever a new user registers on...read more

I am currently earning X amount and looking for a competitive salary based on my experience and skills.

• My current CTC is X amount per annum

• I am looking for a competitive salary based on market standards and my experience

• I am open to negotiation based on the job role and responsibilities

Quick sort is a popular sorting algorithm that uses divide and conquer approach.

• Divide the array into two sub-arrays based on a pivot element

• Recursively sort the sub-arrays

• Combine the sorted sub-arrays to get the final sorted array

Upcasting is casting a subclass to a superclass, while downcasting is casting a superclass to a subclass.

• Upcasting involves converting an object of a subclass to a superclass type.

• Downcasting involves converting an object of a superclass to a subclass type.

• Upcasting is safe and implicit, while downcasting requires explicit casting and may throw a ClassCastException.

• Example: Animal animal = new Dog(); // Upcasting

• Example: Dog dog = (Dog) animal; // Downcasting

JWT (JSON Web Token) is a method for securely transmitting information between parties as a JSON object.

• JWT is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object.

• It is commonly used for authentication and information exchange in web development.

• JWTs consist of three parts: header, payload, and signature.

• The header typically consists of the type of token and the signing algorithm bein...read more

Event loop in Node.js manages asynchronous operations by executing callbacks when certain events occur.

• Event loop is a single-threaded mechanism that allows Node.js to perform non-blocking I/O operations.

• It continuously checks the call stack for any functions that need to be executed, as well as the callback queue for any functions that are ready to be executed.

• Event loop prioritizes the execution of I/O operations and callbacks based on their priority and order of arrival.

• Ex...read more

Django generic views are pre-built views provided by Django to simplify common tasks like displaying data from a database.

• Django generic views help reduce code duplication by providing ready-to-use views for common tasks like displaying objects from a database.

• They are generic in nature and can be easily customized to suit specific requirements.

• Examples include ListView for displaying a list of objects, DetailView for displaying details of a single object, and FormView for ha...read more

To implement a timer in React, you can use the useState hook to manage the timer state and useEffect hook to update the timer.

• Use useState hook to initialize timer state

• Use useEffect hook to update timer every second

• Display the timer value in the component's render method

Object-oriented programming concepts 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 details and showing only the necessary features.