Device drivers & System BIOS
Basic Input/Output
System (BIOS)
·
The main functionality
is to perform the initial hardware checks after the computer is powered on and
start up the operating system.
Device drivers &
System BIOS
·
resources that can be
used by an Operating System (OS) to communicate with hardware
Flashing the BIOS
·
In modern PCs, the
procedure of replacing BIOS contents is sometimes referred to as:
BIOS updates
·
Repair damaged BIOS
2. Provide support for new types of attached hardware
3. Fix known programming errors discovered in the current BIOS version
EEPROM & Flash
Memory
·
BIOS types that can be
updated without removing the BIOS chip from a motherboard
MSINFO32.EXE
·
Microsoft Windows OS
utility can be used to view basic information about computer's BIOS
Power failure during
BIOS upgrade
·
can be the cause of
irreversible damage to the computer system.
Retained
·
After a normal system
shutdown, when the computer is turned off, contents of the memory used to store
BIOS settings are
POST Test.
·
acronym refers to a
series of basic hardware diagnostic tests performed by the startup BIOS after
the computer is powered on
CMOS RAM & Flash
memory
·
After replacing a
modular hardware component inside computer case, the updated information about
specific parameters of the new device can be stored in
Boot sequence
·
After completing the
initial diagnostics and assigning 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 the CMOS setup utility, and this option is commonly
referred to as:
Enabled in the
advanced BIOS settings menu
·
In order to work, an
integrated component such as Network Interface Card (NIC) on a newly assembled
computer system may need to be first:
Getting into the CMOS
setup utility and enabling the virtualization technology setting
·
After launching
Windows Virtual PC application technician receives error message stating that
the Hardware-Assisted Virtualization (HAV) feature is not enabled on the
computer. Which of the following steps might help in fixing this problem
The key set by the
motherboard manufacturer for accessing CMOS setup utility during boot
·
The CMOS setup utility
can be accessed by pressing:
CMOS settings can be
set to factory defaults by:
·
Using a jumper that
can be found on the motherboard, Reseating the CMOS battery on the motherboard,
or Choosing the default configuration option in the CMOS setup utility
UEFI
·
a firmware interface
designed as a replacement for BIOS
user permission
restrictions that can be set in BIOS
·
User password required
to proceed when the computer is powered on & Password-restricted access to
the BIOS setup utility (Supervisor password)
Aborted BIOS update
·
could render the
computer unusable
Supervisor password
·
type of password
provides the highest level of permissions in BIOS
LoJack
·
Security feature used
for locating stolen desktops, laptops, or tablets
Trusted Platform
Module (TPM)
·
a technology that
allows for storing passwords, certificates, or encryption keys in a hardware
chip
Enabling the TPM
security feature in CMOS setup menu
·
While trying to enable
the entire drive encryption feature in Windows technician receives the following
error message: "A compatible Trusted Platform Module (TPM) Security Device
must be present on this computer, but a TPM was not found". Knowing that
the system has a TPM chip installed, which of the following steps might help in
solving this problem
features of UEFI
·
GUI mode
2. Mouse support
3. Secure boot
4. Network access
5. DRM support
Computer's BIOS
·
A computer supporting
LoJack technology has two main components installed: an Application Agent
residing in the operating system which sends tracking signals to the monitoring
center allowing the law enforcement to locate and recover stolen device, and
Persistence Module which restores the Application Agent and allows it to
survive operating system re-installation or hard drive format. The highest
level of security offered by LoJack can be achieved when Persistence Module
resides in:
Secure boot
·
A UEFI functionality
designed to prevent the loading of malware and unauthorized OSs during system
start-up is known as:
Chassis intrusion
detection
·
an option that can be
enabled/disabled in the BIOS setup utility (if a BIOS comes equipped with this
feature). Coupled with a hardware sensor mounted inside the computer case, this
functionality can be used to check if the case was opened and display a
notification alert during next boot.
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