Term 361
Personal Area Network
A Personal Area Network (PAN) is a small network that connects devices within a person's immediate workspace, typically within a range of about 10 meters.
Acronym study
Terms 361–390 of 595 Google PCA 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 361
A Personal Area Network (PAN) is a small network that connects devices within a person's immediate workspace, typically within a range of about 10 meters.
Term 362
A pilot light is a small, always-on indicator or a minimal always-running instance in IT architecture that keeps a system ready and signals its operational status, much like the small flame that keeps a gas furnace ready to ignite.
Term 363
Public Key Infrastructure (PKI) is a framework of policies, hardware, software, and procedures that creates, manages, distributes, uses, stores, and revokes digital certificates to enable secure communications over networks.
Term 364
A logical grouping of cloud instances placed close together or spread apart to optimize performance, fault tolerance, or network latency.
Term 365
A pod is the smallest deployable unit in Kubernetes, containing one or more containers that share storage, network, and a specification for how to run.
Term 366
A networking protocol that creates a secure tunnel for data to travel between two points over the internet, often used for VPNs.
Term 367
A DNS pointer record (PTR) maps an IP address to a domain name, performing the reverse of a standard A or AAAA record.
Term 368
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 369
Policy inheritance is the mechanism by which policies applied to a parent container in a hierarchical system automatically apply to all child objects within that container, unless explicitly blocked or overridden.
Term 370
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 371
A networking technique that maps multiple private IP addresses and their ports to a single public IP address using unique port numbers.
Term 372
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 373
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 374
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 375
Precision Time Protocol is a network protocol used to synchronize clocks across devices with extremely high accuracy, often within microseconds or nanoseconds.
Term 376
A predefined role is a set of permissions that Google Cloud automatically creates and maintains, giving you a ready-made way to control who can do what with your cloud resources.
Term 377
A preemptible VM is a short-lived, low-cost virtual machine instance that cloud providers can terminate at any time, repurposing the underlying hardware for other tasks.
Term 378
A primary key is a unique identifier for each record in a database table, ensuring that no two rows have the same value in that column.
Term 379
A primitive role is a predefined, basic set of permissions in Google Cloud that grants limited, fixed access to a single service.
Term 380
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 381
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 382
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 383
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 384
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 385
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 386
A profiler is a tool that monitors and analyzes the performance, resource usage, and behavior of software applications or systems to identify bottlenecks and optimize efficiency.
Term 387
A project is a temporary endeavor with a defined beginning and end, undertaken to create a unique product, service, or result, managed through specific processes in IT environments.
Term 388
Provisioned concurrency is a feature in serverless computing that keeps a specified number of function instances initialized and ready to respond immediately, eliminating cold start delays.
Term 389
A proxy is an intermediary server that sits between a client and a destination server, forwarding requests and responses while providing security, privacy, and control.
Term 390
Pub/Sub is a messaging pattern where publishers send messages without knowing who receives them, and subscribers receive only the messages they care about.