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CompTIA A+ Core 2 220-1202/Acronyms/Part 20

Acronym study

220-1102 Acronyms — Part 20 of 32

Terms 571–600 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 19Part 20 of 32Part 21 →

Term 571

Operational Technology

Operational Technology (OT) refers to the hardware and software systems that monitor, control, and manage physical devices, processes, and infrastructure in industries like manufacturing, energy, and utilities.

Full entry →
Full Operational Technology glossary entry →

Term 572

OpEx

Operational Expenditure (OpEx) is the ongoing cost for running a business, like paying for cloud services monthly instead of buying hardware upfront.

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Full OpEx glossary entry →

Term 573

Optical Network Terminal

An Optical Network Terminal (ONT) is a device that connects your home or office to the internet service provider's fiber optic network, converting light signals into electrical signals your devices can use.

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Full Optical Network Terminal glossary entry →

Term 574

Organic Light-emitting Diode

An Organic Light-emitting Diode (OLED) is a display technology that uses organic compounds to emit light when an electric current passes through them, enabling thin, flexible, and energy-efficient screens with high contrast.

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Full Organic Light-emitting Diode glossary entry →

Term 575

Organization

An Organization is a top-level container in Google Cloud that represents your company or entities and serves as the root node for all your cloud resources, policies, and access control.

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Full Organization glossary entry →

Term 576

Origin access control

Origin access control is a security mechanism that restricts access to a network, system, or resource based on the verified identity or attributes of the requesting entity.

Full entry →
Full Origin access control glossary entry →

Term 577

Original Equipment Manufacturer

An Original Equipment Manufacturer (OEM) is a company that produces hardware components or complete systems that are sold under another company's brand name.

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Full Original Equipment Manufacturer glossary entry →

Term 578

OT

Operational Technology (OT) is hardware and software that monitors and controls physical devices, processes, and infrastructure in industrial environments.

Full entry →
Full OT glossary entry →

Term 579

Outbound ACL

An Outbound ACL is a set of rules applied to traffic leaving a network interface that decides which packets are allowed to exit and which are blocked.

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Full Outbound ACL glossary entry →

Term 580

Outposts

AWS Outposts is a fully managed service that extends AWS infrastructure, services, and tools to virtually any on-premises data center or co-location space for a truly consistent hybrid cloud experience.

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Full Outposts glossary entry →

Term 581

Outside global

An Outside global address is the publicly routable IP address assigned to a device on the external network (usually the internet) as seen from the perspective of a network device performing Network Address Translation (NAT).

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Full Outside global glossary entry →

Term 582

Outside local

Outside local is the IP address that a device on the inside of a private network appears to have from the perspective of hosts located outside the network, typically after Network Address Translation (NAT) has been applied.

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Full Outside local glossary entry →

Term 583

OWASP Top 10

The OWASP Top 10 is a regularly updated list of the most critical security risks to web applications, published by the Open Web Application Security Project (OWASP) to help developers and security professionals prioritize and mitigate common vulnerabilities.

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Full OWASP Top 10 glossary entry →

Term 584

PaaS

Platform as a Service (PaaS) is a cloud computing model that provides a managed platform for developers to build, run, and manage applications without dealing with the underlying infrastructure.

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Full PaaS glossary entry →

Term 585

Packet capture

Packet capture is the process of intercepting and recording data packets traveling over a computer network for analysis.

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Full Packet capture glossary entry →

Term 586

Password manager

A password manager is a software application that securely stores and manages login credentials, allowing users to generate, retrieve, and autofill complex passwords without needing to remember each one.

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Full Password manager glossary entry →

Term 587

Password policy

A set of rules designed to enhance computer security by encouraging users to create strong, secure passwords and store them properly.

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Full Password policy glossary entry →

Term 588

Passwordless authentication

Passwordless authentication is a method of verifying a user's identity without requiring them to enter a password, using alternative factors like biometrics, hardware tokens, or one-time codes.

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Full Passwordless authentication glossary entry →

Term 589

PAT

PAT (Port Address Translation) is a method of network address translation that maps multiple private IP addresses to a single public IP address by using different port numbers for each connection.

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Full PAT glossary entry →

Term 590

Patch management

Patch management is the process of identifying, acquiring, testing, and deploying software updates (patches) to fix vulnerabilities, bugs, or improve performance in IT systems.

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Full Patch management glossary entry →

Term 591

Patch Manager

A Patch Manager is a tool or service that automates the process of finding, downloading, testing, and installing software updates across multiple computers to keep them secure and stable.

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Full Patch Manager glossary entry →

Term 592

Payment Card Industry Data Security Standards

A set of security rules that any company that handles credit card payments must follow to protect cardholder data from theft and fraud.

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Full Payment Card Industry Data Security Standards glossary entry →

Term 593

PCI

PCI (Peripheral Component Interconnect) is a standard bus interface used in computers to connect hardware devices like graphics cards, network adapters, and storage controllers to the motherboard.

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Full PCI glossary entry →

Term 594

PCI DSS

The Payment Card Industry Data Security Standard is a set of security requirements designed to protect credit card data during storage, processing, and transmission.

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Full PCI DSS glossary entry →

Term 595

Penetration testing

Penetration testing is a simulated cyberattack on a computer system, network, or application to find security weaknesses before real attackers can exploit them.

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Full Penetration testing glossary entry →

Term 596

Performance efficiency pillar

The performance efficiency pillar is a set of design principles and best practices within the AWS Well-Architected Framework that focuses on using computing resources effectively to meet system requirements while maintaining efficiency as demand changes.

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Full Performance efficiency pillar glossary entry →

Term 597

Peripheral Component Interconnect

Peripheral Component Interconnect (PCI) is a standard slot and bus system inside a computer that allows you to connect expansion cards like network cards, sound cards, and graphics cards to the motherboard.

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Full Peripheral Component Interconnect glossary entry →

Term 598

Peripheral Component Interconnect Express

PCI Express (PCIe) is a high-speed expansion bus standard that connects internal hardware components like graphics cards, SSDs, and network adapters to a computer's motherboard.

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Full Peripheral Component Interconnect Express glossary entry →

Term 599

Permission boundary

A permission boundary is the defined limit that controls which users, processes, or systems can access specific resources in a computing environment.

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Full Permission boundary glossary entry →

Term 600

Persistent Disk

Persistent Disk is a durable, high-performance block storage service for Google Cloud virtual machines that retains data even after the VM is shut down or deleted.

Full entry →
Full Persistent Disk glossary entry →
← Part 19Part 21 →

Acronym parts

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Study resources

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