WGU D115 EXAMINATION TEST 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ Productivity Software. Answer: Application software used to aid in
productivity. I.E. Presentation software, word processor, spreadsheets.
◉ System Software. Answer: Consists of programs that make up the OS
and directly support system itself.
**Includes services or DAEMONS
◉ Server Software. Answer: Works with hardware to provide network
service.
◉ Local Application. Answer: Software stored on an individual
computer.
◉ Intranet. Answer: A LAN that uses IP. Used to communicate within
organization.
◉ Cloud Computing. Answer: Allows organization to access
resources/app anywhere, anytime. Beneficial because an org. may access
resources it may not normally have.
,◉ Operating Systems. Answer: Allows a user to easily access
hardware/software, required to maintain computer environment.
◉ Kernel. Answer: Core component of OS.
Loads when computer first boots
Sits on top of hardware, is interface b/w hardware and software.
◉ Device Drivers. Answer: Interface b/w OS and hardware.
◉ Shell. Answer: Interface for user, often personalized. The shell
provides access to the kernel.
I.E. The GUI will translate mouse motions into calls to kernel/routines.
Desktop elements include shortcuts, windows theme, menus,
background.
◉ Services (Daemons). Answer: OS programs that start when OS is
loaded. They run in the background and wait for an event to initiate.
◉ Utility Programs. Answer: Allow user to monitor system performance.
◉ Web Server. Answer: Role is to respond to HTTP requests.
*Most HTTP requests are for HTML docs, but could include any web
accessible resource.
, It's all combined into the URL.
**APACHE is most popular web server-can execute scripts for dynamic
pages, use security mechanisms, log request for trend tracking.
◉ Proxy Server. Answer: A software that acts as an intermediary
between a client and a server to shield the client from adverse actions of
the server.
*Also provides degree of anonymity, since IP address recorded is for
proxy server and not individual client.
*Can also be used to block requests to certain servers (i.e Facebook)
*Can reject responses that contain certain content (i.e "porn")
**SQUID is most common, but APACHE can also be used as proxy
server.
◉ Database Server. Answer: Permits database access across a network.
Performs tasks such as data analysis, data manipulation, security, and
archiving.
May/may not store database itself.
**MySQL is popular.
◉ File Server. Answer: Computer with large hard disk storing files, but
can also store software to be run over network.
◉ Email Server. Answer: Provides email service.
QUESTIONS WITH ANSWERS GRADED A+
◉ Productivity Software. Answer: Application software used to aid in
productivity. I.E. Presentation software, word processor, spreadsheets.
◉ System Software. Answer: Consists of programs that make up the OS
and directly support system itself.
**Includes services or DAEMONS
◉ Server Software. Answer: Works with hardware to provide network
service.
◉ Local Application. Answer: Software stored on an individual
computer.
◉ Intranet. Answer: A LAN that uses IP. Used to communicate within
organization.
◉ Cloud Computing. Answer: Allows organization to access
resources/app anywhere, anytime. Beneficial because an org. may access
resources it may not normally have.
,◉ Operating Systems. Answer: Allows a user to easily access
hardware/software, required to maintain computer environment.
◉ Kernel. Answer: Core component of OS.
Loads when computer first boots
Sits on top of hardware, is interface b/w hardware and software.
◉ Device Drivers. Answer: Interface b/w OS and hardware.
◉ Shell. Answer: Interface for user, often personalized. The shell
provides access to the kernel.
I.E. The GUI will translate mouse motions into calls to kernel/routines.
Desktop elements include shortcuts, windows theme, menus,
background.
◉ Services (Daemons). Answer: OS programs that start when OS is
loaded. They run in the background and wait for an event to initiate.
◉ Utility Programs. Answer: Allow user to monitor system performance.
◉ Web Server. Answer: Role is to respond to HTTP requests.
*Most HTTP requests are for HTML docs, but could include any web
accessible resource.
, It's all combined into the URL.
**APACHE is most popular web server-can execute scripts for dynamic
pages, use security mechanisms, log request for trend tracking.
◉ Proxy Server. Answer: A software that acts as an intermediary
between a client and a server to shield the client from adverse actions of
the server.
*Also provides degree of anonymity, since IP address recorded is for
proxy server and not individual client.
*Can also be used to block requests to certain servers (i.e Facebook)
*Can reject responses that contain certain content (i.e "porn")
**SQUID is most common, but APACHE can also be used as proxy
server.
◉ Database Server. Answer: Permits database access across a network.
Performs tasks such as data analysis, data manipulation, security, and
archiving.
May/may not store database itself.
**MySQL is popular.
◉ File Server. Answer: Computer with large hard disk storing files, but
can also store software to be run over network.
◉ Email Server. Answer: Provides email service.
