GIAC GFACT Exam Review Book
1 exam with complete solutions
Motherboard - answer A circuit board that contains all of the computer
system's main components.
Sizes:
E-ATX: The largest size, known as 'extended ATX'.
ATX: The 'standard' size.
micro-ATX: Smaller than ATX.
mini-ITX: Even smaller still.
Type 1 Hypervisor - answer where the virtualization occurs at the
firmware level
Type 2 Hypervisor - answer where the virtualization is done by a software
program that runs on an operating system
Socket - answer kind of connector that the CPU processor has
Buses - answer responsible for moving data btw components
CPU (Central Processing Unit) - answer The internal operating unit or
"brain" of a computer.
Cores - answer responsible for executing instructions
Clock Speed - answer dictates how many instructions the CPU can
process each second
,* processor that can execute one instruction per second has a clock speed
of 1 Hz (hertz)
Context Switching - answer moving programs in and out of the CPU
RAM (Random Access Memory) - answer stores the computer's programs
and data temporarily while power is on.
Factors:
DDR# stands for double data rate
*3
*4
*5
GPU (graphics processing unit) - answer A processor on a video card used
to create graphics. It takes the load off the CPU.
Heat Sinks - answer A device used to absorb and pull away excessive or
unwanted heat.
Power supply or Power Supply Unit (PSU) - answer responsible for taking
power from either the mains power supply or a battery (in the case of
laptops) and converting then delivering it to the computer components.
SATA (Serial Advanced Technology Attachment) data cable - answer used
for powering hard drives
ATX (Advanced Technology Extended) cable - answer runs to the
motherboard
PCI Express (PCIe) - answer runs to the graphics card
Bits - answer the smallest unit of data in a computer
, All data in a computer system is made up of bits:
1 byte is 8 bits.
1 kilobyte (kB) is 1000 bytes.
1 megabyte (MB) is 1000 kilobytes.
1 gigabyte (GB) is 1000 megabytes.
1 terabyte (TB) is 1000 gigabytes.
Oh, and 4 bits (half a byte) is called a nibble...
1024 Byte - answer 1 byte is 8 bits.
1 kibibyte (KiB) is 1024 bytes.
1 mebibyte (MiB) is 1024 kibibytes.
1 gibibyte (GiB) is 1024 mebibytes.
1 tebibyte (TiB) is 1024 gibibytes.
Notation:
0d - answer denary
Notation:
0b - answer binary
Notation:
0x - answer hexadecimal
d10 is 10 in denary
0b10 is 10 in binary
0x10 is 10 in hexadecimal - answer 10 representation
Encoding - answer a mechanism enabling us to take data in one format,
e.g. binary and then 'package' it in another, e.g. ASCII
1 exam with complete solutions
Motherboard - answer A circuit board that contains all of the computer
system's main components.
Sizes:
E-ATX: The largest size, known as 'extended ATX'.
ATX: The 'standard' size.
micro-ATX: Smaller than ATX.
mini-ITX: Even smaller still.
Type 1 Hypervisor - answer where the virtualization occurs at the
firmware level
Type 2 Hypervisor - answer where the virtualization is done by a software
program that runs on an operating system
Socket - answer kind of connector that the CPU processor has
Buses - answer responsible for moving data btw components
CPU (Central Processing Unit) - answer The internal operating unit or
"brain" of a computer.
Cores - answer responsible for executing instructions
Clock Speed - answer dictates how many instructions the CPU can
process each second
,* processor that can execute one instruction per second has a clock speed
of 1 Hz (hertz)
Context Switching - answer moving programs in and out of the CPU
RAM (Random Access Memory) - answer stores the computer's programs
and data temporarily while power is on.
Factors:
DDR# stands for double data rate
*3
*4
*5
GPU (graphics processing unit) - answer A processor on a video card used
to create graphics. It takes the load off the CPU.
Heat Sinks - answer A device used to absorb and pull away excessive or
unwanted heat.
Power supply or Power Supply Unit (PSU) - answer responsible for taking
power from either the mains power supply or a battery (in the case of
laptops) and converting then delivering it to the computer components.
SATA (Serial Advanced Technology Attachment) data cable - answer used
for powering hard drives
ATX (Advanced Technology Extended) cable - answer runs to the
motherboard
PCI Express (PCIe) - answer runs to the graphics card
Bits - answer the smallest unit of data in a computer
, All data in a computer system is made up of bits:
1 byte is 8 bits.
1 kilobyte (kB) is 1000 bytes.
1 megabyte (MB) is 1000 kilobytes.
1 gigabyte (GB) is 1000 megabytes.
1 terabyte (TB) is 1000 gigabytes.
Oh, and 4 bits (half a byte) is called a nibble...
1024 Byte - answer 1 byte is 8 bits.
1 kibibyte (KiB) is 1024 bytes.
1 mebibyte (MiB) is 1024 kibibytes.
1 gibibyte (GiB) is 1024 mebibytes.
1 tebibyte (TiB) is 1024 gibibytes.
Notation:
0d - answer denary
Notation:
0b - answer binary
Notation:
0x - answer hexadecimal
d10 is 10 in denary
0b10 is 10 in binary
0x10 is 10 in hexadecimal - answer 10 representation
Encoding - answer a mechanism enabling us to take data in one format,
e.g. binary and then 'package' it in another, e.g. ASCII
