Term 31
Apple File System
Apple File System (APFS) is a modern file system designed by Apple for macOS, iOS, and other Apple devices, optimized for flash storage and strong encryption.
Acronym study
Terms 31–60 of 826 220-1201 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.
Term 31
Apple File System (APFS) is a modern file system designed by Apple for macOS, iOS, and other Apple devices, optimized for flash storage and strong encryption.
Term 32
An application crash is when a software program stops working unexpectedly and either closes, freezes, or becomes unresponsive.
Term 33
An Application Gateway is a network device or cloud service that manages and secures traffic between users and web applications by applying rules, routing requests, and offloading tasks like SSL encryption.
Term 34
A set of rules and tools that allows one software program to talk to another, like a messenger between applications.
Term 35
An Application Security Group (ASG) is a cloud networking feature that groups virtual machines logically and allows you to apply security rules based on the application workload, rather than individual IP addresses.
Term 36
Archive tier is an ultra-low-cost Azure Blob Storage access tier designed for long-term retention of data that is rarely accessed and can tolerate hours of retrieval latency.
Term 37
Address Resolution Protocol (ARP) is a network protocol used to map a device's IP address to its physical MAC address so data can be delivered correctly on a local network.
Term 38
ARP poisoning is a network attack where an attacker sends fake Address Resolution Protocol messages to link their MAC address with a legitimate IP address, enabling them to intercept, modify, or stop data on a local network.
Term 39
An ARP reply is a network response sent by a device to answer an ARP request, providing its MAC address so the requesting device can map an IP address to a physical hardware address on a local network.
Term 40
An ARP request is a network broadcast message sent by a device to discover the hardware (MAC) address of another device on the same local network given its IP address.
Term 41
An ARP table is a data structure stored on a network device that maps IP addresses to their corresponding MAC addresses, enabling communication within a local network.
Term 42
An Availability Set is a logical grouping of virtual machines in Azure that helps ensure high availability by distributing VMs across different physical hardware within a datacenter.
Term 43
Asset management is the process of tracking and maintaining all the hardware and software items a company owns throughout their entire life cycle.
Term 44
ATX is a standard specification for the physical layout, power supply, and connectors inside a desktop computer case and motherboard.
Term 45
An Audio Processing Unit (APU) is a dedicated processor designed specifically to handle all sound-related tasks in a computer or device, freeing up the main CPU for other work.
Term 46
An Acceptable Use Policy (AUP) is a set of rules that define how users are allowed to access and use a company's network, devices, and internet connection.
Term 47
Aurora Serverless is an on-demand, auto-scaling configuration for Amazon Aurora that automatically starts, scales, and stops database capacity based on your application's needs.
Term 48
Authentication, Authorization, and Accounting (AAA) is a security framework that controls who can access a network or system, what they are allowed to do, and tracks what they actually did.
Term 49
An authenticator app is a software application on your phone or computer that generates temporary codes used to prove your identity when logging into online accounts.
Term 50
Auto-negotiation is an Ethernet feature that allows two connected devices to automatically agree on the best possible speed and duplex mode for their link.
Term 51
An Automatic Document Feeder (ADF) is a hardware component in scanners, printers, and copiers that automatically feeds multiple pages of a document for scanning or copying without manual intervention.
Term 52
A fallback method used by a device to automatically assign itself an IP address when it cannot obtain one from a DHCP server.
Term 53
AWS Backup is a fully managed service that centralizes and automates data backups across multiple AWS services, enabling you to define backup policies, monitor activity, and restore data from a single dashboard.
Term 54
AzCopy is a command-line utility used to copy, move, and synchronize data to and from Azure storage accounts with efficient performance and scripting capabilities.
Term 55
Azure Bastion is a fully managed PaaS service that provides secure and seamless RDP and SSH connectivity to virtual machines directly through the Azure portal without exposing public IP addresses.
Term 56
Azure File Sync is a Microsoft service that lets you centralize your file shares in Azure while keeping them accessible, fast, and editable on your local servers by caching frequently used files on-premises.
Term 57
Azure Files is a cloud-based file sharing service that lets you create and access file shares using the Server Message Block (SMB) protocol or Network File System (NFS) protocol, just like you would access files on a local network drive.
Term 58
Azure Firewall is a cloud-based network security service that protects your virtual networks in Microsoft Azure by filtering traffic based on rules you define.
Term 59
A backlight is a light source behind a liquid crystal display (LCD) that illuminates the screen so you can see the images and text.
Term 60
A backup is a copy of computer data taken and stored separately so that the original data can be restored if it is lost, damaged, or corrupted.