VVDN Technologies Senior Software Engineer Interview Questions and Answers

UEFI boot phases manage the startup process of a computer, ensuring hardware and software initialization.

• 1. Power-On Self Test (POST): Checks hardware components like RAM and CPU.

• 2. UEFI Firmware Initialization: Loads UEFI drivers and initializes hardware.

• 3. Boot Manager: Determines the boot device and loads the bootloader.

• 4. Bootloader Execution: Loads the operating system kernel into memory.

• 5. OS Initialization:...read more

Bootloaders initialize hardware and load operating systems, managing the startup process of a computer or embedded system.

• Primary responsibilities include hardware initialization and loading the OS.

• Examples of bootloaders: GRUB (Linux), U-Boot (embedded systems), and LILO (Linux).

• Bootloaders can provide a menu for selecting different operating systems.

• They often perform self-tests (POST) to ensure hardware is func...read more

Async/await is a feature in programming that allows asynchronous code to be written in a synchronous manner.

• Async/await is a way to write asynchronous code in a more synchronous style.

• It is used in languages like JavaScript to handle asynchronous operations.

• Async functions return a Promise, which allows them to be awaited.

• Await keyword is used to pause the execution of an async function until a Promise is settled.

Implementing CI/CD involves automating the process of integrating code changes and deploying them to production.

• Set up a version control system like Git to track changes

• Use a continuous integration tool like Jenkins to automatically build and test code

• Implement automated testing to ensure code quality

• Use a continuous deployment tool like Ansible or Docker to deploy code changes

• Integrate monitoring and alerting to ...read more

Sizeof operator in C returns the size of a variable or data type in bytes.

• Sizeof operator is evaluated at compile time

• Sizeof operator can be used with variables, data types, or expressions

• Example: sizeof(int) returns 4 on a 32-bit system

Create a Django project, deploy with Docker and Git

• Install Django and Docker

• Create a new Django project

• Initialize a Git repository

• Create a Dockerfile for the Django project

• Build and run the Docker image

• Push the code to a Git repository