D386 HARDWARE AND OPERATING SYSTEM
ESSENTIALS 2 2026 COMPLETE QUESTION SET
AND CORRECT ANSWERS GRADED A PLUS
◉ Single-user systems.
Answer: Personal computers or workstations that support multi-
tasking, found in laptops and desktops.
◉ Mobile device systems.
Answer: Operating systems for small handheld devices like phones
and tablets.
◉ Mainframe systems.
Answer: Large-scale platforms used in enterprise environments.
◉ Network server systems.
Answer: Designed for specific purposes like database or web
servers.
◉ Thin client.
Answer: Computers connected to a networked server with minimal
hardware.
,◉ Real-time systems.
Answer: Systems that need to act in real time, such as in pacemakers
or cars.
◉ Embedded control systems.
Answer: Designed to control a single piece of equipment, like a
thermostat.
◉ Distributed systems.
Answer: Allocates processing power and resources to network
users.
◉ Barebones Computer System.
Answer: A system that can run only one program at a time with no
memory or I/O.
◉ Emulator.
Answer: A computer or program that imitates another computer or
program.
◉ Cross-platform application.
,Answer: An application that may run on multiple platforms, such as
Linux, macOS, and Windows.
◉ Hybrid Drives.
Answer: Storage devices that combine solid-state drives and hard
disk drives.
◉ RAID Structure.
Answer: A data storage virtualization technology that combines
multiple physical disk drive components.
◉ Virtual Environment.
Answer: An environment created by virtualization technology that
allows multiple operating systems to run on a single physical
machine.
◉ Virtual Sandbox.
Answer: An isolated environment where software can be run safely
without affecting the host system.
◉ Cloud Computing.
Answer: The delivery of computing services over the internet.
, ◉ Cloud Services.
Answer: Services provided over the internet that include storage,
databases, servers, networking, software, and analytics.
◉ Cloud Models.
Answer: Different types of cloud service models, such as IaaS, PaaS,
and SaaS.
◉ Functional Requirements.
Answer: Specifications that define what a system should do.
◉ Non-Functional Requirements.
Answer: Specifications that define how a system performs a
function.
◉ Integrated Development Environments.
Answer: Software applications that provide comprehensive facilities
to programmers for software development.
◉ Text Editors.
Answer: Software used for editing plain text files.
◉ Programmed I/O.
ESSENTIALS 2 2026 COMPLETE QUESTION SET
AND CORRECT ANSWERS GRADED A PLUS
◉ Single-user systems.
Answer: Personal computers or workstations that support multi-
tasking, found in laptops and desktops.
◉ Mobile device systems.
Answer: Operating systems for small handheld devices like phones
and tablets.
◉ Mainframe systems.
Answer: Large-scale platforms used in enterprise environments.
◉ Network server systems.
Answer: Designed for specific purposes like database or web
servers.
◉ Thin client.
Answer: Computers connected to a networked server with minimal
hardware.
,◉ Real-time systems.
Answer: Systems that need to act in real time, such as in pacemakers
or cars.
◉ Embedded control systems.
Answer: Designed to control a single piece of equipment, like a
thermostat.
◉ Distributed systems.
Answer: Allocates processing power and resources to network
users.
◉ Barebones Computer System.
Answer: A system that can run only one program at a time with no
memory or I/O.
◉ Emulator.
Answer: A computer or program that imitates another computer or
program.
◉ Cross-platform application.
,Answer: An application that may run on multiple platforms, such as
Linux, macOS, and Windows.
◉ Hybrid Drives.
Answer: Storage devices that combine solid-state drives and hard
disk drives.
◉ RAID Structure.
Answer: A data storage virtualization technology that combines
multiple physical disk drive components.
◉ Virtual Environment.
Answer: An environment created by virtualization technology that
allows multiple operating systems to run on a single physical
machine.
◉ Virtual Sandbox.
Answer: An isolated environment where software can be run safely
without affecting the host system.
◉ Cloud Computing.
Answer: The delivery of computing services over the internet.
, ◉ Cloud Services.
Answer: Services provided over the internet that include storage,
databases, servers, networking, software, and analytics.
◉ Cloud Models.
Answer: Different types of cloud service models, such as IaaS, PaaS,
and SaaS.
◉ Functional Requirements.
Answer: Specifications that define what a system should do.
◉ Non-Functional Requirements.
Answer: Specifications that define how a system performs a
function.
◉ Integrated Development Environments.
Answer: Software applications that provide comprehensive facilities
to programmers for software development.
◉ Text Editors.
Answer: Software used for editing plain text files.
◉ Programmed I/O.
