WGU C191 Module 4 | 2026 Update Questions with
complete solutions.
Port
A connection point via which an OS communicates with a device
PCI bus
The common system bus connecting the process-memory subsystem to fast devices
Interrupt
The hardware mechanism that enables a device to notify the CPU
Buffer
A memory area that stores data being transferred between two devices or between a device and
an application
Cache
A region of fast memory that holds copies of data
Platter
A circular, metal disk, used for the magnetic storage of data within a hard-disk drive
iSCSI
A network-attached storage protocol, utilizing the IP network protocol to carry the SCSI
protocol, instead of using SCSI cables
Logical formatting
, The creation of a file system
NAS
A special-purpose storage system that is accessed remotely over a data network
SSD
This utilizes non-volatile memory (DRAM) to behave like a traditional disk drive but utilizes no
moving parts. No latency or seek times
File
A logical storage unit as defined by the OS
Text file
A sequence of characters organized into lines, possibly pages
Source file
A sequence of functions, further organized as declarations followed by executable statement
Executable file
A series of code sections that the loader can bring into memory and execute
Name
A file attribute defining the symbolic file name, in human readable format
Identifier
A unique tag which identifies a file within the file system, in non-human-readable format
Open-file table
complete solutions.
Port
A connection point via which an OS communicates with a device
PCI bus
The common system bus connecting the process-memory subsystem to fast devices
Interrupt
The hardware mechanism that enables a device to notify the CPU
Buffer
A memory area that stores data being transferred between two devices or between a device and
an application
Cache
A region of fast memory that holds copies of data
Platter
A circular, metal disk, used for the magnetic storage of data within a hard-disk drive
iSCSI
A network-attached storage protocol, utilizing the IP network protocol to carry the SCSI
protocol, instead of using SCSI cables
Logical formatting
, The creation of a file system
NAS
A special-purpose storage system that is accessed remotely over a data network
SSD
This utilizes non-volatile memory (DRAM) to behave like a traditional disk drive but utilizes no
moving parts. No latency or seek times
File
A logical storage unit as defined by the OS
Text file
A sequence of characters organized into lines, possibly pages
Source file
A sequence of functions, further organized as declarations followed by executable statement
Executable file
A series of code sections that the loader can bring into memory and execute
Name
A file attribute defining the symbolic file name, in human readable format
Identifier
A unique tag which identifies a file within the file system, in non-human-readable format
Open-file table
