Term 541
Policing
Traffic policing is a network mechanism that monitors data traffic against a configured rate limit and drops or remarks packets that exceed that limit to enforce bandwidth usage.
Acronym study
Terms 541–570 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 541
Traffic policing is a network mechanism that monitors data traffic against a configured rate limit and drops or remarks packets that exceed that limit to enforce bandwidth usage.
Term 542
Pop-up ads are unsolicited browser windows or overlays that appear automatically while browsing, often used for advertising or, maliciously, to spread malware.
Term 543
POP3 (Post Office Protocol version 3) is an email protocol that downloads messages from a mail server to a single device and then typically deletes them from the server.
Term 544
A networking technique that maps multiple private IP addresses and their ports to a single public IP address using unique port numbers.
Term 545
A port number is a 16-bit number used in networking to identify a specific application or service on a device in a network communication.
Term 546
Power-On Self-Test (POST) is a diagnostic process that a computer runs when it first powers on to check that essential hardware components are working correctly before loading the operating system.
Term 547
Post Office Protocol (POP) is a standard internet protocol used by email clients to retrieve email from a remote server and download it to the user's local device.
Term 548
PostScript is a page description language used by printers and other output devices to render text and graphics with high precision.
Term 549
A Potentially Unwanted Program (PUP) is software that you did not intend to install and that can cause unwanted behavior on your system, such as showing excessive ads or slowing down performance.
Term 550
A power connector is the physical interface on a computer component or peripheral that receives electrical power from a power supply unit or other source to make the device function.
Term 551
A Power Distribution Unit (PDU) is a device that distributes electrical power to multiple pieces of IT equipment, such as servers, switches, and routers, in a data center or server room.
Term 552
Power over Ethernet (PoE) is a technology that allows electrical power and data to be transmitted over a single Ethernet cable to devices like IP cameras, wireless access points, and VoIP phones.
Term 553
A power supply unit (PSU) is the hardware component that converts electricity from a wall outlet into usable power for a computer's internal components.
Term 554
The Power-on Self-test (POST) is a diagnostic process a computer runs immediately when you turn it on to check that essential hardware components are working correctly before loading the operating system.
Term 555
Precision Time Protocol is a network protocol used to synchronize clocks across devices with extremely high accuracy, often within microseconds or nanoseconds.
Term 556
A presigned URL is a temporary, secure link that grants limited access to a private file stored in cloud storage without requiring the user to have cloud credentials.
Term 557
A print server is a dedicated device or software service that manages print jobs from multiple computers on a network, directing them to the appropriate printer and queuing tasks when the printer is busy.
Term 558
A print spooler is a software service that manages print jobs by holding them in a queue and sending them to the printer one at a time.
Term 559
Printer Command Language is a set of instructions that tells a printer how to format and print a page, developed by Hewlett-Packard.
Term 560
A printer driver is software that translates data from a computer into a language a printer can understand so it can produce the correct output.
Term 561
A printer queue is a list of print jobs waiting to be processed by a printer, managed by the computer's operating system to ensure orderly printing.
Term 562
A private cloud is a cloud computing environment that is used exclusively by a single organization, offering the benefits of cloud services — like scalability and self-service — but with dedicated infrastructure that is not shared with any other company.
Term 563
A private DNS zone is a hosted DNS namespace that is only resolvable from within specific virtual networks or private environments, not from the public internet.
Term 564
A private endpoint is a network interface that securely connects a service over a private IP address inside a virtual network, keeping traffic off the public internet.
Term 565
Private Google Access lets virtual machines in a Google Cloud VPC reach Google APIs and services using private IP addresses, without needing public internet access.
Term 566
A private IP address is a non-internet-routable address used within a local network to identify devices and allow them to communicate with each other without direct exposure to the public internet.
Term 567
Private Link is a technology that lets you connect your virtual network to a service over a private, secure connection inside the cloud provider's infrastructure, instead of going over the public internet.
Term 568
A private subnet is a segmented portion of a cloud or on-premises network that is not directly accessible from the public internet, used to host internal resources securely.
Term 569
AWS PrivateLink is a service that lets you securely access services hosted on AWS VPCs as if they were on your own private network, without exposing traffic to the public internet.
Term 570
Proper disposal is the secure and environmentally responsible process of destroying, recycling, or discarding IT equipment and data-bearing devices to prevent data breaches and comply with regulations.