WGU IT FOUNDATIONS –D393 :2024 COMPTIA A+
CORE 1 EXAM PREP LATEST UPDATED VERSION
ACTUAL QUESTIONS AND CORRECT DETAILED
ANSWERS (CORRECT VERIFIED ANSWERS)
|ALREADY GRADED A+ (BRAND NEW!!)
frontside bus - ANSWERSignal pathway for communication between CPU and memory
backside bus - ANSWERSignal pathway between CPU and L2 or L3 cache
frontside bus - ANSWERWhere cache is placed if no backside bus exists
ATX - ANSWERLargest 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 - ANSWERFollows the ATX principle of component placement for enhanced
cooling but with a smaller footprint, fits into ATX cases
ITX - ANSWERFamily of small motherboard form factors with mini-, nano-, pico-, and
mobile- categories.
Southbridge - ANSWERThis is in charge of anything other than CPU, memory and cache,
and PCIe
SODIMM and MicroDIMM - ANSWERForm factors for laptop memory
L1 cache - ANSWERTerm for cache memory built into the processor
L2 cache - ANSWERTerm for cache memory external to the processor, possibly
physically close by
,L3 cache - ANSWERTerm for cache memory on the motherboard, when the processor
already has external cache
firmware - ANSWERThe name given to any software that is encoded in hardware, usually
on ROM, and run without extra instructions from the operating system
option ROMs - ANSWERAnother term for things like the SCSI BIOS and video BIOS
Parity checking - ANSWERA rudimentary memory error-checking scheme that offers no
error correction
1 - ANSWERHow many bits can ECC memory correct?
single-sided memory - ANSWERMemory modules with chips on just one side
double-sided memory - ANSWERMemory modules with chips on both sides, which the
memory controller must switch between
buffered or registered memory modules - ANSWERThese 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 - ANSWERA form of registered DIMMs that increase performance
by maintaining parallel communication
onboard - ANSWERTerm for connectors included on the motherboard
off board - ANSWERTerm for connectors not on the motherboard, but residing on
adapter cards
drive interface - ANSWERName for the connector on the motherboard or adapter card
that connects via cable to the hard drive
, 3m - ANSWERMax cable length of USB 1
5m - ANSWERMax cable length of USB 2
3m - ANSWERMax cable length of USB 3
(hub count * max cable length) + max cable length - ANSWERFormula for calculating max
USB cable length with hubs
127 - ANSWERMax number of USB devices per host
4.5m - ANSWERMax FireWire 400 cable length
63 - ANSWERMaximum number of FireWire devices per bus
72m - ANSWERMaximum distance between FireWire devices
33m - ANSWERMax active DisplayPort cable length (11 times passive cable length)
3m - ANSWERMax Thunderbolt cable length
6 - ANSWERHow many levels deep can a Thunderbolt daisy chain extend?
green - ANSWERMouse PS/2 port color
purple - ANSWERKeyboard PS/2 port color
IEEE 1284 - ANSWERName of the standard for the parallel port
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