BIOS (basic input/output system)

Question 1

The main functionality of Basic Input/Output System (BIOS) is to perform initial hardware checks after the computer is powered on and to start up the Operating System (OS).

True
False

Answer 1

True

Question 2

Which of the acronyms listed below refers to a series of basic hardware diagnostic tests performed by the startup BIOS after the computer is powered on?

SFC
S.M.A.R.T.
CRC
POST

Answer 2

POST

A Power-On Self-Test (POST) is an operation initiated by a computer after it has been turned on but before it boots up the OS.

Question 3

After replacing a modular hardware component inside the computer case, the updated information about specific parameters of the new device is stored in: (Select 2 answers)

System BIOS
Flash memory chip (newer PCs)
Startup BIOS
Secondary storage
CMOS RAM (older PCs)

Question 4

A computer’s BIOS interface can be accessed by pressing: (Select best answer)

Reset button on the front panel of a computer case
Esc key during boot
The key set by the motherboard manufacturer for accessing BIOS configuration interface during boot
Delete key during boot

Answer 4

The key set by the motherboard manufacturer for accessing BIOS configuration interface during boot

Question 5

BIOS configuration settings can be set to factory defaults by: (Select all that apply)

Using a jumper on the motherboard
Changing settings in Windows Device Manager
Reseating the CMOS battery on the motherboard in older PCs
Choosing the default configuration option in the BIOS interface

Answer 5

Using a jumper on the motherboard
Reseating the CMOS battery on the motherboard in older PCs
Choosing the default configuration option in the BIOS interface

Question 6

Which of the following statements is true?

Aborted BIOS update can be resumed by the transaction recovery system
A common security measure is to store BIOS on a non-rewritable memory chip
In MS Windows, BIOS hardware configuration settings can be modified in Device Manager
Aborted BIOS update can damage the motherboard and render the computer unusable

Answer 6

Aborted BIOS update can damage the motherboard and render the computer unusable

Question 7

The CMOS battery located on a computer’s motherboard allows for maintaining the correct time and date information stored in CMOS RAM. In older computer systems, the CMOS battery also allowed for maintaining the BIOS configuration settings stored in CMOS RAM.

True
False

Answer 7

True

Question 8

Which of the answers listed below refer(s) to the feature(s) of UEFI? (Select all that apply)

Mouse support
DRM support
Support for hard drives with a maximum of 4 partitions per drive
GUI mode
Secure boot
Designed as a replacement for BIOS
Support for partitions/hard drives of up to 2TB
Network access

Answer 8

Mouse support
DRM support
GUI mode
Secure boot
Designed as a replacement for BIOS
Network access

Question 9

After completing the initial diagnostic procedures and allocating system resources, the startup BIOS program checks for information about secondary storage devices that might contain the OS. The list of devices and the order in which they should be checked can be found and arranged in BIOS. This functionality can be accessed via:

ACPI settings
System Configuration utility
Boot options
Security tab

Answer 9

Boot Options

Question 10

Which BIOS configuration option allows to mitigate the risk of malware infection?

User password
Chassis intrusion detection
Supervisor password
USB configuration settings

Answer 10

USB Configuration Settings

Question 11

The BIOS configuration interface provides a wide range of advanced hardware-related options. In modern PCs, depending on the specific BIOS type and version, these options might typically include:

Viewing a detailed information related to CPU, RAM, and storage media
Enabling/disabling integrated hardware interfaces, such as USB, Audio, NIC, TPM, or integrated graphics controllers
Configuring the parameters of CPU, RAM, storage media, and cooling fans
Enabling/disabling certain functionalities, e.g., virtualization support
All of the above

Answer 11

All of the above

Question 12

A UEFI functionality designed to prevent the loading of malware and unauthorized OSs is called:

LoJack
Bitlocker
Secure boot
Kerberos

Answer 12

Secure Boot

Question 13

BIOS/UEFI passwords improve the security of a PC. These low-level passwords may, for example, prevent unauthorized users to proceed when the computer is powered on (Supervisor password), or restrict the scope of changes a user can make in the BIOS/UEFI interface (User password).

True
False

Answer 13

False

Question 14

Which type of password provides the highest level of permissions in BIOS?

root
Supervisor
Administrator
Power User

Answer 14

Supervisor

Question 15

Which of the following could be of help in troubleshooting a system that attempts to boot to incorrect device? (Select 2 answers)

Administrative Tools
Disconnecting any removable external drives (e.g., USB thumb drives)
Safe mode troubleshooting
Checking BIOS settings for boot order
Device Manager

Question 16

After replacing a modular hardware component inside the computer case, the updated information about specific parameters of the new device is stored in: (Select 2 answers)

System BIOS
Flash memory chip (newer PCs)
Startup BIOS
Secondary storage
CMOS RAM (older PCs)

Answer 16

Flash memory chip (newer PCs)
CMOS RAM (older PCs)