WGU C727 COMPREHENSIVE STUDY GUIDE
2026 FULL QUESTIONS AND SOLUTIONS
GRADED A+
◍ branch-and-link instruction.
Answer: An instruction that branches to an address simultaneously saves the
address of the following instruction in a register (LR or X30 in LEGv8).
◍ What type of applications is the mesh topology not suited for?.
Answer: general networking applications
◍ very large-scale integrated (VLSI) circuit.
Answer: A device containing hundreds of thousands to millions of
transistors.
◍ multiprocessor architecture.
Answer: A unified graphics and computing multiprocessor executes vertex,
geometry, and pixel fragment shader programs, and parallel computing
programsadvantages:Increased throughputCost savingIncreased reliability
◍ single precision.
Answer: A floating-point value represented in a single 32-bit word.
◍ Translation Lookaside Buffer (TLB).
Answer: A cache that keeps track of recently used address mappings to try
to avoid an access to the page table. Can be used to improve access
performance by relying on locality of referenceTLB size: 16-512
entriesBlock size: 1-2 page table entries (typically 4-8 bytes each)Hit time:
0.5-1 clock cycleMiss penalty: 10-100 clock cyclesMiss rate: 0.01%-1%
◍ allows the connection of a hub or switch to another hub or switch without
having to use a crossover cable.
, Answer: an uplink port
◍ Datapath.
Answer: The component of the processor that performs arithmetic
operations
◍ PDP-8.
Answer: First commercial minicomputer introduced by Digital Equipment
Corporationcost under $20,000
◍ supercomputer.
Answer: a particularly powerful mainframe computer.
◍ Strong scaling.
Answer: Speed-up achieved on a multiprocessor without increasing the size
of the problem.
◍ Single Instruction Stream, Multiple Data Streams (SIMD).
Answer: The same instruction is applied to many data streams, as in a vector
processor.
◍ Coherence.
Answer: ensures that a read of a data item returns the most recently written
value of that data item. It defines what values can be returned by a read
◍ What do class A ip addresses begin with?.
Answer: 0 thru 127
◍ Tomasulo's Algorithm.
Answer: An algorithm for dynamic scheduling and out-of-order
executionuses dynamic hazard detection, generalized forwarding, and
reservation stations.
◍ Three Cs model.
Answer: A cache model in which all cache misses are classified into one of
three categories: compulsory misses, capacity misses, and conflict misses.
◍ a limited geopgraphic area that provides wireless access for the public.
Answer: hot spot
,◍ Multiple Instruction Multiple Data (MIMD).
Answer: A multiprocessor.
◍ RAID 3.
Answer: Byte-level striping with dedicated parity. OBSOLETE, replaced
with RAID 5.
◍ When there is a combination of wireless b, g, and/or n technologies, which
frequency will be set for the combined technologies?.
Answer: The slowest speed
◍ Not meant for large networks, but are still used in some smaller, slower
speed LANs.
Answer: hub
◍ What does ipconfig/all display when entered as a command in the command
mode or at the MS-DOS prompt?.
Answer: MAC address
◍ Is a hub or switch the best choice for interconnecting networking devices?.
Answer: switch
◍ Also called a multiport repeater.
Answer: hub
◍ What is the operating range for the 802.11a wireless standard?.
Answer: up to 75 feet
◍ Uniform Memory Access (UMA).
Answer: A multiprocessor in which latency to any word in main memory is
about the same no matter which processor requests the access.
◍ How many bits are in an IP address?.
Answer: 32
◍ Semiconductor.
Answer: A substance that can conduct electricity under some conditions
◍ B.LT.
, Answer: less than
◍ overflow (floating point).
Answer: A situation in which a positive exponent becomes too large to fit in
the exponent field.
◍ B.GT.
Answer: greater than
◍ Architectural registers.
Answer: The instruction set of visible registers of a processor; for example,
in MIPS, these are the 32 integer and 16 floating point registers
◍ What are the data transfer rates and operating ranges for 801.11g wireless
standard?.
Answer: up to 54 Mbps and up to 150 feet
◍ Which network will offer the best data transfer speed for home access of the
home network?.
Answer: the wired network
◍ The layer of the OSI model that provides the electrical and mechanical
connection to the network..
Answer: physical
◍ Must have the capability to detect data collisions (collision detection) to
avoid two or more computers from attempting to broadcast a message at the
same time..
Answer: Ethernet systems
◍ what do class D ip addresses begin with?.
Answer: 224 thru 239
◍ What are the maximum number of hosts on a class B ip address?.
Answer: 65,534 or 2^16
◍ A carrier sense multiple access with collision detection protocol for local
area networks.
Answer: Ethernet
2026 FULL QUESTIONS AND SOLUTIONS
GRADED A+
◍ branch-and-link instruction.
Answer: An instruction that branches to an address simultaneously saves the
address of the following instruction in a register (LR or X30 in LEGv8).
◍ What type of applications is the mesh topology not suited for?.
Answer: general networking applications
◍ very large-scale integrated (VLSI) circuit.
Answer: A device containing hundreds of thousands to millions of
transistors.
◍ multiprocessor architecture.
Answer: A unified graphics and computing multiprocessor executes vertex,
geometry, and pixel fragment shader programs, and parallel computing
programsadvantages:Increased throughputCost savingIncreased reliability
◍ single precision.
Answer: A floating-point value represented in a single 32-bit word.
◍ Translation Lookaside Buffer (TLB).
Answer: A cache that keeps track of recently used address mappings to try
to avoid an access to the page table. Can be used to improve access
performance by relying on locality of referenceTLB size: 16-512
entriesBlock size: 1-2 page table entries (typically 4-8 bytes each)Hit time:
0.5-1 clock cycleMiss penalty: 10-100 clock cyclesMiss rate: 0.01%-1%
◍ allows the connection of a hub or switch to another hub or switch without
having to use a crossover cable.
, Answer: an uplink port
◍ Datapath.
Answer: The component of the processor that performs arithmetic
operations
◍ PDP-8.
Answer: First commercial minicomputer introduced by Digital Equipment
Corporationcost under $20,000
◍ supercomputer.
Answer: a particularly powerful mainframe computer.
◍ Strong scaling.
Answer: Speed-up achieved on a multiprocessor without increasing the size
of the problem.
◍ Single Instruction Stream, Multiple Data Streams (SIMD).
Answer: The same instruction is applied to many data streams, as in a vector
processor.
◍ Coherence.
Answer: ensures that a read of a data item returns the most recently written
value of that data item. It defines what values can be returned by a read
◍ What do class A ip addresses begin with?.
Answer: 0 thru 127
◍ Tomasulo's Algorithm.
Answer: An algorithm for dynamic scheduling and out-of-order
executionuses dynamic hazard detection, generalized forwarding, and
reservation stations.
◍ Three Cs model.
Answer: A cache model in which all cache misses are classified into one of
three categories: compulsory misses, capacity misses, and conflict misses.
◍ a limited geopgraphic area that provides wireless access for the public.
Answer: hot spot
,◍ Multiple Instruction Multiple Data (MIMD).
Answer: A multiprocessor.
◍ RAID 3.
Answer: Byte-level striping with dedicated parity. OBSOLETE, replaced
with RAID 5.
◍ When there is a combination of wireless b, g, and/or n technologies, which
frequency will be set for the combined technologies?.
Answer: The slowest speed
◍ Not meant for large networks, but are still used in some smaller, slower
speed LANs.
Answer: hub
◍ What does ipconfig/all display when entered as a command in the command
mode or at the MS-DOS prompt?.
Answer: MAC address
◍ Is a hub or switch the best choice for interconnecting networking devices?.
Answer: switch
◍ Also called a multiport repeater.
Answer: hub
◍ What is the operating range for the 802.11a wireless standard?.
Answer: up to 75 feet
◍ Uniform Memory Access (UMA).
Answer: A multiprocessor in which latency to any word in main memory is
about the same no matter which processor requests the access.
◍ How many bits are in an IP address?.
Answer: 32
◍ Semiconductor.
Answer: A substance that can conduct electricity under some conditions
◍ B.LT.
, Answer: less than
◍ overflow (floating point).
Answer: A situation in which a positive exponent becomes too large to fit in
the exponent field.
◍ B.GT.
Answer: greater than
◍ Architectural registers.
Answer: The instruction set of visible registers of a processor; for example,
in MIPS, these are the 32 integer and 16 floating point registers
◍ What are the data transfer rates and operating ranges for 801.11g wireless
standard?.
Answer: up to 54 Mbps and up to 150 feet
◍ Which network will offer the best data transfer speed for home access of the
home network?.
Answer: the wired network
◍ The layer of the OSI model that provides the electrical and mechanical
connection to the network..
Answer: physical
◍ Must have the capability to detect data collisions (collision detection) to
avoid two or more computers from attempting to broadcast a message at the
same time..
Answer: Ethernet systems
◍ what do class D ip addresses begin with?.
Answer: 224 thru 239
◍ What are the maximum number of hosts on a class B ip address?.
Answer: 65,534 or 2^16
◍ A carrier sense multiple access with collision detection protocol for local
area networks.
Answer: Ethernet
