WGU D684 CERTIFICATION ASSESSMENT
TEST COMPREHENSIVE QUESTIONS AND
SOLUTIONS 2026
◉ addressability.
Answer: the capability of a system to access and manipulate each
unit of data in memory individually
◉ arithmetic logic unit (ALU).
Answer: the part of the CPU that performs arithmetic calculations
and logical operations
◉ block.
Answer: a fixed-size unit of data stored and accessed on a disk or in
memory
◉ bus width.
Answer: the number of bits that can be transmitted simultaneously
on a data bus, affecting data transfer speed
◉ cache memory.
,Answer: a small, fast type of volatile memory that stores frequently
accessed data to speed up processing
◉ central processing unit (CPU).
Answer: the main component of a computer that executes
instructions and processes data
◉ control unit.
Answer: the part of the CPU that directs its operation, managing the
execution of instructions and coordinating other components
◉ cylinder.
Answer: a set of tracks located at the same position on multiple disk
platters in a hard drive
◉ input unit.
Answer: devices and components used to input data into a computer
system, such as keyboards and mice
◉ instruction register.
Answer: a register in the CPU that holds the current instruction
being executed
, ◉ latency.
Answer: the delay before a transfer of data begins following an
instruction for its transfer
◉ motherboard.
Answer: the main circuit board of a computer, housing the CPU,
memory, and other essential components
◉ output unit.
Answer: devices and components used to output data from a
computer system, such as monitors and printers
◉ pipelining.
Answer: a CPU performance enhancement technique where multiple
instruction phases are overlapped to improve processing speed
◉ program counter.
Answer: a register in the CPU that holds the address of the next
instruction to be executed
◉ register.
Answer: a small, fast storage location within the CPU used to hold
temporary data and instructions
TEST COMPREHENSIVE QUESTIONS AND
SOLUTIONS 2026
◉ addressability.
Answer: the capability of a system to access and manipulate each
unit of data in memory individually
◉ arithmetic logic unit (ALU).
Answer: the part of the CPU that performs arithmetic calculations
and logical operations
◉ block.
Answer: a fixed-size unit of data stored and accessed on a disk or in
memory
◉ bus width.
Answer: the number of bits that can be transmitted simultaneously
on a data bus, affecting data transfer speed
◉ cache memory.
,Answer: a small, fast type of volatile memory that stores frequently
accessed data to speed up processing
◉ central processing unit (CPU).
Answer: the main component of a computer that executes
instructions and processes data
◉ control unit.
Answer: the part of the CPU that directs its operation, managing the
execution of instructions and coordinating other components
◉ cylinder.
Answer: a set of tracks located at the same position on multiple disk
platters in a hard drive
◉ input unit.
Answer: devices and components used to input data into a computer
system, such as keyboards and mice
◉ instruction register.
Answer: a register in the CPU that holds the current instruction
being executed
, ◉ latency.
Answer: the delay before a transfer of data begins following an
instruction for its transfer
◉ motherboard.
Answer: the main circuit board of a computer, housing the CPU,
memory, and other essential components
◉ output unit.
Answer: devices and components used to output data from a
computer system, such as monitors and printers
◉ pipelining.
Answer: a CPU performance enhancement technique where multiple
instruction phases are overlapped to improve processing speed
◉ program counter.
Answer: a register in the CPU that holds the address of the next
instruction to be executed
◉ register.
Answer: a small, fast storage location within the CPU used to hold
temporary data and instructions
