Collins Aerospace Senior Developer Lead Interview Questions and Answers

React hooks lifecycle includes initialization, rendering, updates, and cleanup.

• Hooks are called in the order they are defined in the component function.

• useState and useEffect are commonly used hooks in React.

• Hooks like useEffect can be used for data fetching, subscriptions, or manually changing the DOM.

• The cleanup function in useEffect can be used to clean up any resources or subscriptions.

• Hooks allow for more flexible

To fetch data from an API, you need to send a request to the API endpoint and process the response.

• Send a request to the API endpoint using HTTP methods like GET, POST, PUT, DELETE.

• Include any required parameters or headers in the request.

• Receive the response from the API, which usually comes in JSON or XML format.

• Parse the response data to extract the information you need.

• Handle any errors or exceptions that may occur

useEffect is used for side effects in functional components, while useReducer is used for managing state in complex components.

• useEffect is used for handling side effects in functional components

• useReducer is used for managing state in complex components

• useEffect is similar to componentDidMount and componentDidUpdate in class components

• useReducer is similar to useState but for more complex state management

• useEffect can...read more

Modulation allows for the transmission of information over long distances by varying a carrier signal.

• Modulation helps in efficient transmission of signals over long distances.

• It allows multiple signals to share the same transmission medium without interference.

• Modulation enables the encoding of information onto a carrier signal for communication purposes.

• Examples of modulation techniques include amplitude modulation (...read more

Modulation helps in carrying messages over large distances by allowing the signal to travel efficiently without losing strength or clarity.

• Modulation allows for the message signal to be combined with a carrier signal, which helps in long-distance transmission.

• It helps in reducing interference and noise during transmission.

• Different types of modulation techniques like amplitude modulation (AM), frequency modulation (FM)...read more