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CompTIA A+ Core 2 220-1202/Acronyms/Part 23

Acronym study

220-1102 Acronyms — Part 23 of 32

Terms 661–690 of 956 220-1102 acronyms and key terms. Each entry includes a plain-English definition and a link to the full 800-word glossary page with exam context and practice questions.

← Part 22Part 23 of 32Part 24 →

Term 661

Recovery

Recovery is the process of restoring systems, data, and operations after a security incident, failure, or disaster to return to normal functioning.

Full entry →
Full Recovery glossary entry →

Term 662

Recovery key

A recovery key is a unique code or physical device used to regain access to an encrypted system or account when the primary authentication method, such as a password or biometric, is lost or unavailable.

Full entry →
Full Recovery key glossary entry →

Term 663

Recovery partition

A hidden section on a computer's hard drive that contains the files needed to restore the operating system to its factory state.

Full entry →
Full Recovery partition glossary entry →

Term 664

Recovery point objective

Recovery point objective (RPO) is the maximum acceptable amount of data loss measured in time, determining how frequently backups must be taken.

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Full Recovery point objective glossary entry →

Term 665

Recovery time objective

Recovery time objective (RTO) is the maximum acceptable time that an IT system can be offline after a failure before the business is severely impacted.

Full entry →
Full Recovery time objective glossary entry →

Term 666

Red team

A red team is a group of security professionals who simulate real-world attacks on an organization's systems, people, and facilities to test the effectiveness of its defenses.

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Full Red team glossary entry →

Term 667

Red-Green-Blue

Red-Green-Blue (RGB) is a color model that combines red, green, and blue light to create a wide range of colors, primarily used in digital displays and imaging systems.

Full entry →
Full Red-Green-Blue glossary entry →

Term 668

Redundancy

Redundancy is the practice of adding extra components or systems so that if one fails, another can take over without interruption.

Full entry →
Full Redundancy glossary entry →

Term 669

Redundant Array of Independent Disks

A technology that combines multiple physical hard drives into a single logical unit to improve performance, reliability, or both.

Full entry →
Full Redundant Array of Independent Disks glossary entry →

Term 670

Reference monitor

A trusted, always-active component of a computer's operating system that enforces security policies by checking every access request to files, memory, or devices before allowing it.

Full entry →
Full Reference monitor glossary entry →

Term 671

Region

A region is a distinct geographic location where a cloud provider operates multiple data centers that are connected by low-latency networks and provide cloud services.

Full entry →
Full Region glossary entry →

Term 672

Region pair

A region pair is two Azure regions within the same geography that are at least 300 miles apart and are used together to provide data residency, compliance, and high availability through paired recovery and updates.

Full entry →
Full Region pair glossary entry →

Term 673

Registered Jack Function 11

A modular connector standard used for Ethernet cabling, commonly known as the 8P8C connector with a specific wiring pattern for structured network wiring.

Full entry →
Full Registered Jack Function 11 glossary entry →

Term 674

Registered Jack Function 45

An RJ45 connector is the clear plastic plug at the end of an Ethernet cable that connects computers, routers, and switches to form a wired network.

Full entry →
Full Registered Jack Function 45 glossary entry →

Term 675

Registry

The Windows Registry is a central hierarchical database that stores configuration settings and options for the operating system, hardware, software, and user preferences.

Full entry →
Full Registry glossary entry →

Term 676

Registry Editor

The Registry Editor is a built-in Windows tool used to view and modify the Windows Registry, a hierarchical database storing configuration settings for the operating system, applications, and hardware.

Full entry →
Full Registry Editor glossary entry →

Term 677

Regulatory requirement

A regulatory requirement is a rule issued by a government or industry authority that organizations must follow, often to protect data, ensure safety, or maintain fair practices.

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Full Regulatory requirement glossary entry →

Term 678

Reliability

Reliability is the measure of a system's ability to consistently perform its intended functions without failure over a specified period of time under stated conditions.

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Full Reliability glossary entry →

Term 679

Reliability pillar

The Reliability pillar is a set of best practices in cloud architecture that ensures a system can recover from failures, scale to meet demand, and deliver consistent performance over time.

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Full Reliability pillar glossary entry →

Term 680

Remediation script

A remediation script is an automated set of instructions that detects and fixes common IT security or configuration issues without manual intervention.

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Full Remediation script glossary entry →

Term 681

Remote Authentication Dial-in User Service

RADIUS is a network protocol that provides centralized authentication, authorization, and accounting for users trying to connect to a network service.

Full entry →
Full Remote Authentication Dial-in User Service glossary entry →

Term 682

Remote lock

Remote lock is a security feature that allows an administrator to lock a device from a remote location, preventing unauthorized access if the device is lost or stolen.

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Full Remote lock glossary entry →

Term 683

Remote Monitoring and Management

Remote Monitoring and Management (RMM) is a technology that allows IT professionals to monitor, manage, and maintain computer systems and networks from a distant location without being physically present.

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Full Remote Monitoring and Management glossary entry →

Term 684

Reserved Instance

A Reserved Instance is a billing discount applied to your usage of virtual machines or other compute resources when you commit to using a specific configuration for a one- or three-year term.

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Full Reserved Instance glossary entry →

Term 685

Residual risk

Residual risk is the level of risk that remains after all security controls and countermeasures have been applied.

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Full Residual risk glossary entry →

Term 686

Resilient File System

Resilient File System (ReFS) is a Microsoft file system designed to maximize data availability, resist corruption, and handle large volumes of data efficiently.

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Full Resilient File System glossary entry →

Term 687

Resource hierarchy

Resource hierarchy is the structured, parent-child ordering of cloud resources that governs access control, policy inheritance, and resource organization across a cloud platform.

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Full Resource hierarchy glossary entry →

Term 688

Resource pooling

Resource pooling is a cloud computing model where a provider's computing resources are shared across multiple tenants, with resources dynamically assigned and reassigned based on demand.

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Full Resource pooling glossary entry →

Term 689

Resource quota

A resource quota is a cloud computing limit that restricts how much of a shared resource, like CPU time, memory, or storage, a single user or project can consume.

Full entry →
Full Resource quota glossary entry →

Term 690

Retention label

A retention label is a tag applied to emails, documents, or files in Microsoft 365 that tells the system how long to keep the item and what to do with it when the time is up.

Full entry →
Full Retention label glossary entry →
← Part 22Part 24 →

Acronym parts

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Study resources

All 220-1102 Acronyms→220-1102 Practice Tests→220-1102 Study Guide→Exam Domains→