WGU D316 IT Foundations Latest Update 2025- 2026 Exam 90 Questions with 100% Verified Correct Answers Guaranteed A+
Datacenter - CORRECT ANSWER: A room or building designed to handle the power,
cooling, and networking needs of a large number of servers.
Define a Cache - CORRECT ANSWER: a small block of memory that works at the
speed of the CPU or close to it,
Define a register - CORRECT ANSWER: a temporary storage area available to the
different units within the CPU working at the same clock speed as the CPU
Define HDD - CORRECT ANSWER: A hard disk drive that store data on a metal or
glass platter.
Define SATA - CORRECT ANSWER: Serial Advanced Technology Attachment Interface
ports on the mother board to connect fixed and removable drives. (disc drives, tape drives etc)
connected to power via SATA power or Molex Connector.
Define wattage ratting - CORRECT ANSWER: Measure of how much power can be
supplied by a PSU
measurement of the power supply unit's output capability
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Describe a PSU - CORRECT ANSWER: Power supply unit
converts AC power to DC volts
most have duel voltage auto switch to correct voltage and some have manual switch
fixed voltage psu only accept high line low line voltage
Describe DDR - CORRECT ANSWER: Double data rate
sends double the amount each clock cycle
uses rising and falling edges of of clock signal to send data
superior to non DDRRAM
will include clock speed and bandwitdth in its name.
The peak transfer rate is 1600 MBps
Describe ECC RAM - CORRECT ANSWER: Error Correcting Code
Used in workstations where servers must remain online at all times.
Detects if the data was correctly processed by the memory module
makes corrections if necessary 2 / 3
has 9 memory chips.
Describe RAID 0(Striping without Parity) - CORRECT ANSWER: Disk striping divides data into blocks and spreads the blocks in a fixed order among all the disk in the array.
provides no redundancy. used as a non critical cache store
Describe SDDRAM - CORRECT ANSWER: Synchronous Dynamic RAM
used today in RAM DIMMS
Runs in sync with system clock
runs faster than DRAM
Has 8 byte wide bus
runs at mhz times the amount of bytes
includes clock speed in its name
describe the current P1 connector form factor - CORRECT ANSWER: 24 pin connector (2x12)
describe the P1 connector - CORRECT ANSWER: a 20 pin connection (2x10)
black wires for ground
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