WGU D386 HARDWARE & OPERATING
SYSTEMS EXAM QUESTIONS AND
ANSWERS. VERIFIED 2025/2026.
What is testing each individual piece of code, such as a file or class? - ANS Unit testing
What type of testing checks the interaction between several units to ensure that integrating
them has not introduced errors? - ANS Integration testing
What type of testing runs previously conducted unit tests again, ensuring that recent changes
have not broken any previously tested units. - ANS Regression testing
what type of tests are conducted by users or customers to ensure that the functionality meets
their requirements. - ANS Acceptance tests
Which CPU socket type has the pins located on the CPU itself, and is commonly used by AMD
processors? - ANS Pin Grid Array (PGA)
Which CPU socket type has the pins located on the motherboard and is commonly used by Intel
processors? - ANS Land Grid Array (LGA)
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Which is the most frequently used register to store data taken from memory? -
ANS Accumulator
Which register hold the address of the location to be accessed from memory - ANS Memory
Address Register (MAR)
Which register contains data to be written into or read out from addressed location? -
ANS Memory Data Register (MDR)
Which register keeps track of the execution of a program by containing next address to be
fetched - ANS Program Counter (PC)
Which register holds the instruction which is about to be executed? - ANS Instruction
Register (IR)
Which battery is on the motherboard and stores BIOS and Southbridge settings? - ANS CMOS
battery
What is the ability for multiple threads to access shared resources simultaneously? -
ANS Concurrency
What allows the CPU to execute multiple threads of the same process simultaneously? -
ANS Multithreading
Which motherboard component connects directly to the CPU via the front side bus and
manages high speed communication between the CPU, RAM and graphics card? - ANS North
Bridge
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
SYSTEMS EXAM QUESTIONS AND
ANSWERS. VERIFIED 2025/2026.
What is testing each individual piece of code, such as a file or class? - ANS Unit testing
What type of testing checks the interaction between several units to ensure that integrating
them has not introduced errors? - ANS Integration testing
What type of testing runs previously conducted unit tests again, ensuring that recent changes
have not broken any previously tested units. - ANS Regression testing
what type of tests are conducted by users or customers to ensure that the functionality meets
their requirements. - ANS Acceptance tests
Which CPU socket type has the pins located on the CPU itself, and is commonly used by AMD
processors? - ANS Pin Grid Array (PGA)
Which CPU socket type has the pins located on the motherboard and is commonly used by Intel
processors? - ANS Land Grid Array (LGA)
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Which is the most frequently used register to store data taken from memory? -
ANS Accumulator
Which register hold the address of the location to be accessed from memory - ANS Memory
Address Register (MAR)
Which register contains data to be written into or read out from addressed location? -
ANS Memory Data Register (MDR)
Which register keeps track of the execution of a program by containing next address to be
fetched - ANS Program Counter (PC)
Which register holds the instruction which is about to be executed? - ANS Instruction
Register (IR)
Which battery is on the motherboard and stores BIOS and Southbridge settings? - ANS CMOS
battery
What is the ability for multiple threads to access shared resources simultaneously? -
ANS Concurrency
What allows the CPU to execute multiple threads of the same process simultaneously? -
ANS Multithreading
Which motherboard component connects directly to the CPU via the front side bus and
manages high speed communication between the CPU, RAM and graphics card? - ANS North
Bridge
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
