Messer Chapter 1.1 - BIOS and UEFI

  1. BIOS
    Basic Input Output System
  2. What is the BIOS?
    Software (Firmware) used to start your computer
  3. What does the BIOS do?
    Initializes the CPU and memory
  4. POST
    Power On Self Test
  5. What does the POST do?
    Does a basic check of the hardware
  6. What happens if something fails the POST?
    A message will pop up on the screen telling you that there is a problem with your CPU or memory
  7. What happens after the POST?
    Goes to your storage device and looks for a boot loader so that the BIOS can point to the OS to take over
  8. Where is the BIOS stored?
    On a nonvolatile chip
  9. How did the older Operating systems talk to the hardware?
    Through the BIOS
  10. Why is the legacy bios limited?
    It is limited because there are no drivers for modern network, video, and storage devices
  11. What is the legacy bios?
    The original / traditional bios
  12. UEFI
    Unified Extensible Firmware Interface
  13. What is the UEFI based on?
    Intel's EFI
  14. What format does UEFI support?
    FAT and removable media
  15. How big of a GPT can you boot from in the UEFI?
    2.2 TB
  16. GPT
    GUID Partition Table
  17. What 3 advantage does the UEFI include that the legacy BIOS does not?
    • 1. It has Secure Boot  
    • 2. can support larger HDDs
    • 3. 128 partitions
  18. Which 7 Operating Systems have the secure boot option?
    • 1. Windows 8
    • 2. Windows 8.1
    • 3. Windows server 2012
    • 4. Windows server 2012 R2
    • 5. Linux Fedora
    • 6.openSUSE
    • 7. Ubuntu built
  19. CMOS
    Complimentary Metal Oxide Semiconductor
  20. What do we use now to store the BIOS?
    Flash Memory
  21. What is the CMOS battery?
    Used to give constant power to the BIOS memory
  22. What is the CMOS battery used for now?
    To maintain the time/date
  23. What happens the CMOS battery goes bad?
    You will need to configure the BIOS on every boot
  24. How could you reset the BIOS configuration on older systems?
    By removing the CMOS battery and putting it back on
  25. What 5 keys can you press to access the BIOS as soon as you turn your PC on?
    • 1. Del
    • 2. F1
    • 3. F2
    • 4. CTRL-S
    • 5. CTRL-ALT-S
  26. What 4 hardware can you view and configure in the BIOS?
    • 1. RAM
    • 2. Hard Drive/SSD
    • 3. Optical Drive
    • 4. CPU
  27. Can you enable/disable Hardware in the BIOS?
  28. What are the 2 passwords you can set in the BIOS and what do they do?
    • 1. Supervisor passwords grants you access to the BIOS settings
    • 2. User password will let you boot up the PC
  29. How can you check if your hardware is performing well?
    Using the hardware diagnostics in the BIOS
  30. What should you do before making changes to the bios?
    Create a backup of your original BIOS configuration
  31. What is a popular way of protecting ALL of your data including the OS?
    Full Disk Encryption
  32. In order to use full disk encryption, what hardware do you need and where does it go?
    You need a Trusted Platform Module (TPM) and it goes directly onto the BIOS chip
  33. What kind of software do you need to function with TPM?
    Windows Bitlocker
  34. What does the TPM do?
    Protects the data using cryptographic functions
  35. What is LoJack for laptops?
    Tracking software that can help you track down a missing laptop
  36. Where is LoJack located?
    It is built into the BIOS and installed into the OS
  37. TPM
    Trusted Platform Module
  38. What happens when LoJack is uninstalled?
    It reinstalls itself
  39. What are the 2 security features that LoJack comes with?
    • 1. The phone home feature which provides location information
    • 2. A theft mode which can lock the laptop, delete files, or force a startup password
  40. What is Secure Boot?
    It is part of the UEFI. It is a security standard that makes sure your PC boots using only software/drivers that are trusted by the PC manufacturer
  41. What is firmware?
    Permanent software programmed into hardware
  42. What are the steps to updating your firmware/ BIOS?
    • 1. Check to see which version you are running (System info/ msinfo32)
    • 2. Read the documentation before installing the new firmware from the internet
    • 3. Make sure you're plugged into a reliable power source so your installation won't be interrupted
    • 4. Run the program update / Flash the BIOS
  43. What happens when your installation of the new BIOS update is interrupted?
    The computer may become unusable
  44. What are the 6 things you can monitor in the BIOS?
    • 1. Voltage
    • 2. Fan/CPU fan speeds
    • 3. Tempurature
    • 4. Intrusion detection
    • 5. Bus speed
    • 6. Clock Speed
Card Set
Messer Chapter 1.1 - BIOS and UEFI
Bios and UEFI