NASDAQ System Development Senior Specialist Interview Questions and Answers

UART, SPI, and I2C are communication protocols used in embedded systems. Static and extern are keywords in object-oriented programming.

• UART stands for Universal Asynchronous Receiver/Transmitter and is used for serial communication between devices.

• SPI stands for Serial Peripheral Interface and is used for synchronous communication between devices.

• I2C stands for Inter-Integrated Circuit and is used for communication bet...read more

To center a div using CSS, set the margin property to auto and specify a width for the div.

• Set margin property to auto

• Specify a width for the div

Arrow functions provide a concise syntax and lexical scoping compared to traditional functions.

• Arrow functions have implicit return statements

• They do not bind their own 'this' keyword

• They have a shorter syntax compared to traditional functions

• They are useful for callbacks and functional programming

• Example: const double = num => num * 2;

• Example: const sum = (a, b) => a + b;

Angular 2 and 8 are different versions of the Angular framework.

• Angular 2 was released in 2016, while Angular 8 was released in 2019.

• Angular 8 introduced several new features and improvements over Angular 2, including better performance, improved accessibility, and enhanced tooling.

• Angular 8 also introduced the Ivy rendering engine, which offers improved bundle sizes and faster compilation times.

• Angular 2 is no longer ...read more

Explaining Spring concepts: Qualifier, Autowired, Bean scope, and Dependency management

• Qualifier is used to specify which bean to inject when multiple beans of the same type are present

• Autowired automatically injects a bean by type, but can also use Qualifier to specify which bean to inject

• Bean scope determines the lifecycle of a bean, such as singleton or prototype

• Dependency management ensures that all required depend