3-B: Configuring Bios/UEFI Flashcards
Identify the order of activities that happen to start-up a computer.
Startup: hardware components receive electrical power, and the system initializes.
Power On Self Test (POST):checks the integrity and functionality of hardware components.
It ensures that critical components like RAM, CPU, and storage devices are working correctly.
Loading the Operating System (OS):
The OS is transferred from storage (such as a hard drive or SSD) intoRAM (Random Access Memory).
Loading the OS into RAM allows the CPU to execute its instructions.
System Configuration:
During this phase, the initial settings and drivers are established.
Drivers enable communication between hardware components and the OS.
Loading System Utilities:
Essential software tools for system management are activated.
These utilities help manage processes, memory, and other system resources.
Remember, booting is a fundamental process that sets the stage for everything your computer does. Whether it’s a desktop, laptop, or smartphone, it all starts with booting!
This is system firmware that begins the loading of the computer.
BIOS or UEFI
What does BIOS mean?
Basic Input/Output System
What does UEFI stand for?
Unified Extensible Firmware Interface
What are the 3 most common keys used to enter the BIOS/UEFI system setup program
Esc, F1, F12
After having installed an additional hard-drive, you get a message during boot that says “No Operating System Found”. What is the first thing to check?
Boot Order in BIOS/UEFI
What has to be done in order to boot from a thumbdrive?
Booting from a thumb drive usually involves a few key steps, which can vary slightly depending on your computer’s hardware and BIOS/UEFI settings. Here’s a general guide to help you through the process:
Prepare the Thumb Drive:
Format the Drive: Ensure the thumb drive is properly formatted and has the bootable OS or installation files on it. You might need to use a tool like Rufus (for Windows) or Etcher (for macOS/Linux) to create a bootable drive.
Check Compatibility: Verify that the OS or software you’re trying to boot is compatible with the thumb drive and the computer.
Insert the Thumb Drive:
Plug the thumb drive into a USB port on the computer.
Access the BIOS/UEFI Settings:
Restart your computer.
Enter the BIOS or UEFI firmware settings. This usually involves pressing a key during startup, such as F2, F10, Del, or Esc. The exact key varies by manufacturer, so check your computer’s documentation or the initial startup screen for instructions.
Change Boot Order:
**Once in the BIOS/UEFI settings, navigate to the boot menu or boot order settings.
Set the USB drive as the first boot device. **This tells the computer to check the thumb drive for bootable media before attempting to boot from other devices like the hard drive or SSD.
Save and Exit:
**Save the changes and exit the BIOS/UEFI settings. **This is usually done by pressing F10 or following the on-screen instructions.
Boot from the Thumb Drive:
Your computer should now boot from the thumb drive. You might see a boot menu or installation screen depending on what’s on the thumb drive.
Troubleshooting:
If the computer doesn’t boot from the thumb drive, double-check that the thumb drive is properly prepared and inserted. Ensure that the drive is functioning correctly by trying it in another computer if necessary.
Also, verify that the USB ports are working and that you have the correct boot order set.
What is a Hash?
A hash is a fixed-size numerical or alphanumeric value generated by a hash function from input data of any size.
The key properties of a good hash function include:
Deterministic: The same input will always produce the same hash value.
Fast Computation: The hash value is computed quickly.
Pre-image Resistance: It should be infeasible to generate the original input given only the hash value.
Collision Resistance: It should be infeasible to find two different inputs that produce the same hash value.
Avalanche Effect: A small change in input should produce a significantly different hash.
What is a TPM?
A TPM (Trusted Platform Module) is used to improve the security of your PC. Typically, it’s a separate chip on the motherboard though the TPM 2.0 standard allows manufacturers like Intel or AMD to build the TPM capability into their chipsets rather than requiring a separate chip.
