Revision Guide and Quiz

What firmware component enables the use of TPM by providing secure boot functionality?

• HSM

• UEFI

• ARM

• BIOS

Answer explanation

UEFI (Unified Extensible Firmware Interface) provides secure boot functionality, which is essential for utilizing TPM (Trusted Platform Module) effectively. It ensures that only trusted software is loaded during the boot process.

Which of the following is not stored in CMOS when the computer is powered off?

• A) Boot sequence

• B) BIOS/UEFI passwords

• C) Operating system passwords

• D) CPU and memory settings

Answer explanation

Operating system passwords are stored on the hard drive, not in CMOS. CMOS retains settings like boot sequence, BIOS/UEFI passwords, and CPU/memory settings, which are needed for hardware configuration.

If you need to replace an ATX motherboard, which form factor should you choose to maintain compatibility?

• AT

• AIX

• ATX

• ITX

Answer explanation

To maintain compatibility when replacing an ATX motherboard, you should choose the ATX form factor. Other options like AT, AIX, and ITX are different form factors and may not fit or connect properly.

Which feature ensures that only trusted software is loaded during startup by verifying file integrity?

• Power-on Boot

• Master Boot

• Secure Boot

• Ready Boot

Answer explanation

Secure Boot is a feature that ensures only trusted software is loaded during startup by verifying the integrity of files. It prevents unauthorized code from running, enhancing system security.

Increasing which component allows more applications to run simultaneously on a computer?

• CPU

• RAM

• Hard Drive

• Graphics Card

Answer explanation

Increasing RAM allows more applications to run simultaneously because it provides the necessary memory for active processes. More RAM means more data can be stored temporarily, enabling smoother multitasking.

Which of the following provides more temporary storage for running processes, which improves multitasking and allows more applications to be used simultaneously?

• CPU speed

• CPU bus width

• Hard drive space

• Memory (RAM)

Answer explanation

Memory (RAM) provides temporary storage for running processes, allowing for improved multitasking and enabling more applications to run simultaneously. Unlike CPU speed or hard drive space, RAM is specifically designed for this purpose.

Which method can be used to access BIOS/UEFI if the password is forgotten?

• Reposition a jumper on the motherboard to clear CMOS

• Hold down a specific key while booting

• Unplug the computer for two minutes

• Press F8 during boot

Answer explanation

Repositioning a jumper on the motherboard to clear CMOS resets the BIOS/UEFI settings, including the password. This method is effective when the password is forgotten, unlike the other options listed.

What is the purpose of a dual-rail power supply?

• To provide redundancy in case of failure

• To distribute the power load across two 12V rails

• To enhance cooling performance

• To support multiple operating systems

Answer explanation

A dual-rail power supply is designed to distribute the power load across two 12V rails, ensuring stable voltage and preventing overload on a single rail, which enhances overall system performance.

Which RAID type provides increased speed but no redundancy?

• RAID 0

• RAID 1

• RAID 5

• RAID 10

Answer explanation

RAID 0 stripes data across multiple drives, enhancing speed and performance. However, it offers no redundancy, meaning if one drive fails, all data is lost. Therefore, RAID 0 is the correct choice for increased speed without redundancy.

What is the main difference in data transfer speeds between USB 2.0 and USB 3.0?

• USB 2.0: 480 Mbps, USB 3.0: 5 Gbps

• USB 2.0: 5 Gbps, USB 3.0: 10 Gbps

• USB 2.0: 12 Mbps, USB 3.0: 480 Mbps

• USB 2.0: 1 Gbps, USB 3.0: 2 Gbps

Answer explanation

The main difference in data transfer speeds is that USB 2.0 supports up to 480 Mbps, while USB 3.0 significantly increases this to 5 Gbps, making USB 3.0 much faster for data transfer.