1|Page
WGU C952|ACTUAL QUESTIONS
WITH VERIFIED SOLUTIONS 2026
Parallelization - correct-answer -consist of dividing a program into separate
components that run in parallel on individual computers in the cluster
superscalar - correct-answer -Technique primarily associated with hardware.
Functional units (ALU, Floating Point Unit, Load/Store Unit) are duplicated in the
pipeline of a superscalar processor which allows the hardware to issue multiple
instructions to each unit simultaneously.
ARM architecture - correct-answer -can support 16-bit
,2|Page
Amdahl's Law - correct-answer -A formula used to find the maximum
improvement possible by improving a particular part of a system. In parallel
computing, Amdahl's law is mainly used to predict the theoretical maximum
speedup for program processing using multiple processors
multiprocessor - correct-answer -A term used to refer to a computer with more
than one CPU.
Uniform Memory Access (UMA) - correct-answer -A multiprocessor in which
latency to any word in main memory is about the same no matter which
processor requests the access.
Non-Uniform Memory Access (NUMA) - correct-answer -Varying system memory
access times, because of system hardware.
,3|Page
loop unrolling - correct-answer -A technique to get more performance from loops
that access arrays, in which multiple copies of the loop body are made and
instructions from different iterations are scheduled together.
Blocking - correct-answer -a failure to retrieve information that is available in
memory even though you are trying to produce it
can help reduce cache miss rate
Set Associative Cache - correct-answer -A cache that has a fixed number of
locations (at least two) where each block can be placed.
RAID 0 (Disk Striping) - correct-answer -Disk Striping. Disk striping requires at
least two drives. It does not provide redundancy to data. If any one drive fails, all
data is lost.
, 4|Page
RAID 1 (mirroring) - correct-answer -Two drives are used in unison, and all data is
written to both drives, giving you a mirror or extra copy of the data, in the case
that one drive fails
RAID 2 - correct-answer -Bit-level striping with dedicated Hamming-code parity.
OBSOLETE.
RAID 3 - correct-answer -Byte-level striping with dedicated parity. OBSOLETE,
replaced with RAID 5.
RAID 4 - correct-answer -Block-level striping with dedicated parity. Not often
used, replaced with RAID 5.
WGU C952|ACTUAL QUESTIONS
WITH VERIFIED SOLUTIONS 2026
Parallelization - correct-answer -consist of dividing a program into separate
components that run in parallel on individual computers in the cluster
superscalar - correct-answer -Technique primarily associated with hardware.
Functional units (ALU, Floating Point Unit, Load/Store Unit) are duplicated in the
pipeline of a superscalar processor which allows the hardware to issue multiple
instructions to each unit simultaneously.
ARM architecture - correct-answer -can support 16-bit
,2|Page
Amdahl's Law - correct-answer -A formula used to find the maximum
improvement possible by improving a particular part of a system. In parallel
computing, Amdahl's law is mainly used to predict the theoretical maximum
speedup for program processing using multiple processors
multiprocessor - correct-answer -A term used to refer to a computer with more
than one CPU.
Uniform Memory Access (UMA) - correct-answer -A multiprocessor in which
latency to any word in main memory is about the same no matter which
processor requests the access.
Non-Uniform Memory Access (NUMA) - correct-answer -Varying system memory
access times, because of system hardware.
,3|Page
loop unrolling - correct-answer -A technique to get more performance from loops
that access arrays, in which multiple copies of the loop body are made and
instructions from different iterations are scheduled together.
Blocking - correct-answer -a failure to retrieve information that is available in
memory even though you are trying to produce it
can help reduce cache miss rate
Set Associative Cache - correct-answer -A cache that has a fixed number of
locations (at least two) where each block can be placed.
RAID 0 (Disk Striping) - correct-answer -Disk Striping. Disk striping requires at
least two drives. It does not provide redundancy to data. If any one drive fails, all
data is lost.
, 4|Page
RAID 1 (mirroring) - correct-answer -Two drives are used in unison, and all data is
written to both drives, giving you a mirror or extra copy of the data, in the case
that one drive fails
RAID 2 - correct-answer -Bit-level striping with dedicated Hamming-code parity.
OBSOLETE.
RAID 3 - correct-answer -Byte-level striping with dedicated parity. OBSOLETE,
replaced with RAID 5.
RAID 4 - correct-answer -Block-level striping with dedicated parity. Not often
used, replaced with RAID 5.
