WGU C393 IT Foundations 2024/2025 Detailed
Questions And Expert Answers
frontside bus Answer: Signal pathway for communication between CPU and
memory
backside bus Answer: Signal pathway between CPU and L2 or L3 cache
frontside bus Answer: Where cache is placed if no backside bus exists
ATX Answer: Largest motherboard form factor, puts the processor and
memory in line with the fan output of the power supply, allowing the processor to
run cooler
micro ATX Answer: Follows the ATX principle of component placement for
enhanced cooling but with a smaller footprint, fits into ATX cases
ITX Answer: Family of small motherboard form factors with mini-, nano-, pico-,
and mobile- categories.
Southbridge Answer: This is in charge of anything other than CPU, memory
and cache, and PCIe
SODIMM and MicroDIMM Answer: Form factors for laptop memory
,L1 cache Answer: Term for cache memory built into the processor
L2 cache Answer: Term for cache memory external to the processor, possibly
physically close by
L3 cache Answer: Term for cache memory on the motherboard, when the
processor already has external cache
firmware Answer: The name given to any software that is encoded in
hardware, usually on ROM, and run without extra instructions from the operating
system
option ROMs Answer: Another term for things like the SCSI BIOS and video
BIOS
Parity checking Answer: A rudimentary memory error-checking scheme that
offers no error correction
1 Answer: How many bits can ECC memory correct?
single-sided memory Answer: Memory modules with chips on just one side
, double-sided memory Answer: Memory modules with chips on both sides,
which the memory controller must switch between
buffered or registered memory modules Answer: These memory modules
include specialized chips that act as buffers for all signals from the memory
controller, except, in some cases, the data signals
Load-reduced DIMMs Answer: A form of registered DIMMs that increase
performance by maintaining parallel communication
onboard Answer: Term for connectors included on the motherboard
off board Answer: Term for connectors not on the motherboard, but residing
on adapter cards
drive interface Answer: Name for the connector on the motherboard or
adapter card that connects via cable to the hard drive
3m Answer: Max cable length of USB 1
5m Answer: Max cable length of USB 2
3m Answer: Max cable length of USB 3
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