2025-01-07T21:05:52+03:00[Europe/Moscow] en true Define and describe BIOS, What is POST?, What distinguishes a legacy BIOS?, Define and describe UEFI, What are secret buttons?, True or False: The only way to experiment with UEFI/BIOS is in system, What are 3 ways to access the BIOS from the Windows desktop?, What is the most important step in changing BIOS configurations?, What are the 2 most important boot options in BIOS?, What is a secure boot?, True or False: A password can be implemented at the BIOS level to prevent the OS from booting, How can a user reset their boot password?, Define and describe CMOS, True or False: All systems require a CMOS battery, What is the consequence of a bad CMOS battery?, Define and describe TPM, Define and describe HSM flashcards
CompTIA A+ Core 1: BIOS

CompTIA A+ Core 1: BIOS

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  • Define and describe BIOS
    Basic Input/Output System, the software used to start the system, BIOS is commonly the system firmware
  • What is POST?
    Power-on Self-Test, is the BIOS checking its own functionality
  • What distinguishes a legacy BIOS?
    Operating systems communicated to the hardware through the BIOS
  • Define and describe UEFI
    Unified Extensible Firmware Interface, a defined standard designed to replace legacy systems by making the BIOS graphical and text-based
  • What are secret buttons?
    The key(s) a user needs to press during startup to access the BIOS
  • True or False: The only way to experiment with UEFI/BIOS is in system
    False - There are simulators available or you can run a virtual machine
  • What are 3 ways to access the BIOS from the Windows desktop?
    Hold shift while pressing restart, settings/update & security/recovery/advanced startup/restart now, msconfig
  • What is the most important step in changing BIOS configurations?
    Making a backup
  • What are the 2 most important boot options in BIOS?
    Device enabling, and boot order
  • What is a secure boot?
    Part of the UEFI specification that cryptographically secures instructions for software and firmware, ensures that malware cannot hijack the system at the BIOS level
  • True or False: A password can be implemented at the BIOS level to prevent the OS from booting
    True
  • How can a user reset their boot password?
    Resetting the BIOS by jumping/shorting the CMOS
  • Define and describe CMOS
    Complementary Metal-Oxide Semiconductor, is a type of memory that sets the system clock and BIOS configuration
  • True or False: All systems require a CMOS battery
    False - Modern systems use Flash memory in CMOS to circumvent the need for dedicated power
  • What is the consequence of a bad CMOS battery?
    The user will need to manually configure their BIOS and Date/Time on each boot
  • Define and describe TPM
    Trusted Platform Module, is a hardware to help with encryption functions, it is persistent memory with cryptographic keys implanted during production, it is password protected
  • Define and describe HSM
    Hardware Security Module, is a high-end cryptographic hardware commonly used in large environments, a higher grade TPM