Revision Quiz

Which of these enables a computer to support TPM?

• UEFI

• HSM

• ARM

• BIOS

Answer explanation

UEFI (Unified Extensible Firmware Interface) is a modern firmware interface that supports TPM (Trusted Platform Module) functionalities, enabling secure boot and enhanced security features. BIOS does not inherently support TPM.

What is not held in CMOS memory when the system power is off?

• A) Boot sequence

• B) BIOS/UEFI passwords

• C) Operating system passwords

• D) Memory and CPU settings

Answer explanation

Operating system passwords are stored on the hard drive, not in CMOS memory, which retains settings like BIOS passwords and boot sequences. Therefore, when power is off, operating system passwords are not held in CMOS.

What type of motherboard should replace an ATX?

• AT

• AIX

• ATX

• ITX

Answer explanation

The ATX motherboard is a standard form factor that has evolved from the earlier AT design. Therefore, the correct replacement for an ATX motherboard is another ATX motherboard, as it maintains compatibility with existing components.

Which technology, dependent on UEFI, loads files at startup only if they have not been tampered with?

• Power-on Boot

• Master Boot

• Secure Boot

• Ready Boot

Answer explanation

Secure Boot is a UEFI feature that ensures only trusted software is loaded at startup, preventing tampered files from executing. This enhances system security by verifying the integrity of the boot process.

Increasing which component allows more applications to run simultaneously?

• A) CPU speed

• B) CPU bus width

• C) HDD space

Answer explanation

Increasing CPU speed enhances processing power, allowing the system to handle more tasks simultaneously. This is crucial for running multiple applications efficiently, making A) CPU speed the correct choice.

Which component is responsible for increasing the system's RAM (memory) to handle more applications at once?

• A) CPU

• B) Hard Drive

• C) Graphics Card

• D) Memory

Answer explanation

The component responsible for increasing the system's RAM is 'Memory'. It allows the system to handle more applications simultaneously by providing the necessary space for data storage and processing.

How can you access BIOS/UEFI when the password is unknown?

• Repositioning a jumper on the motherboard to clear the CMOS memory

• Holding down a BIOS-specific key or key sequence while booting

• Unplugging the computer for at least two minutes

• Pressing F8 during boot and selecting to clear the password

Answer explanation

Repositioning a jumper on the motherboard clears the CMOS memory, which resets BIOS/UEFI settings, including the password. This method is effective when the password is unknown, unlike other options listed.

Which error-checking scheme is unable to correct errors?

• Error correction code

• Dual-channel memory

• Rambus

• Parity checking

Answer explanation

Parity checking is an error-detection scheme that can identify errors but cannot correct them. It adds a parity bit to data, allowing detection of single-bit errors, but it does not provide a method to fix those errors.

Which memory module uses DDR400 chips?

• PC3200

• PC400

• PC2-3200

• PC3-3200

Answer explanation

PC3200 is the memory module that uses DDR400 chips, as it is rated for a maximum bandwidth of 3.2 GB/s, which corresponds to the DDR400 standard. The other options refer to different DDR standards.

Which memory module acts as two separate modules?

• Dual-channel

• Double-sided

• Triple-channel

• Single-sided

Answer explanation

The correct answer is 'Double-sided' because it refers to memory modules that have chips on both sides, effectively acting as two separate modules. This allows for increased memory capacity and performance.