ACL Digital Interview Questions and Answers

SQL stands for Structured Query Language, used for managing and manipulating relational databases.

• SQL is a standard language for accessing and manipulating databases.

• It is used to perform tasks such as querying data, updating data, and creating databases.

• Common SQL commands include SELECT, INSERT, UPDATE, DELETE.

• Example: SELECT * FROM customers WHERE country = 'USA';

Data is information that is stored and can be manipulated by a computer.

• Data is raw facts and figures.

• Data can be in various forms such as text, numbers, images, etc.

• Data can be structured or unstructured.

• Examples of data include customer names, phone numbers, and purchase history.

To call a dummy API in React JS, use the fetch API or axios library.

• Use the fetch API to make a GET request to the dummy API endpoint

• Or use the axios library to make the API call

• Handle the response data in the component's state or props

ltrim and rtrim are functions used to remove leading and trailing spaces from a string.

• ltrim removes leading spaces from a string

• rtrim removes trailing spaces from a string

• Both functions are commonly used in data cleaning and formatting tasks

A function is a block of code that performs a specific task when called by its name.

• Functions can take input parameters and return output values.

• Functions can be reused multiple times in a program.

• Examples: sum() function adds two numbers, print() function displays output.