Bios/UEFI

What is the role of the CMOS in a modern computer?

• Saves information about system devices.
• Coordinates the use of system hardware with the operating system.
• Tests hardware during system startup.
• Loads the operating system into memory.

When you boot your computer, it hangs after asking you for the current time and date. What is the MOST likely problem?

• The BIOS is outdated.
• Daylight savings time has started or ended.
• The CMOS battery has failed.
• The computer needs more RAM

When do you need to upgrade the system BIOS?

• Whenever you install a new hard disk drive.
• Whenever a BIOS update provides functionality that is not currently supported, but is required by the operating system or hardware.
• Whenever the BIOS settings need to be modified.
• Whenever you add a new peripheral device, such as a keyboard, mouse, or printer.

You want to configure your computer so that a password is required before the operating system will load. What should you do?

• Require complex passwords in the Local Security Policy.
• Configure chassis instruction detection.
• Configure a user password in the BIOS/UEFI.
• Configure an administrator password in the BIOS/UEFI.

Which of the following functions are performed by the Trusted Platform Module (TPM)?

• Encrypts data on the hard disk drive.
• Creates a hash based on installed system components.
• Performs bulk encryption.
• Generates authentication credentials.

You have just purchased a new computer. This system uses UEFI firmware and comes with Windows 11 preinstalled. You recently accessed the manufacturer's support website and saw that a UEFI firmware update has been released. You download the update. However, when you try to install it, an error message is displayed that indicates the digital signature on the update file is invalid.

• Which of the following MOST likely caused this to happen?
• SecureBoot has been enabled in the UEFI firmware configuration.
• Interim UEFI updates that have been released since the system was manufactured need to be installed before you can install the latest update.
• The system has a rootkit malware infection.
• The update file has been tampered with.

To fix a problem you are having with your PC, you have determined that you must flash the computer's BIOS. Which of the following would MOST likely need to be completed prior to flashing the BIOS? (Select two.)

• Locate the flash utility or tool that was shipped with your computer.
• Test the memory to ensure that it is functioning properly.
• Download the flash utility or tool from the manufacturer's website.
• Create a backup of the hard disk in the event of a failure.
• Properly identify the motherboard.