# Cloud Glossary: Letter P **Navigation:** [A](/glossary/a) | [B](/glossary/b) | [C](/glossary/c) | [D](/glossary/d) | [E](/glossary/e) | [F](/glossary/f) | [G](/glossary/g) | [H](/glossary/h) | [I](/glossary/i) | [J](/glossary/j) | [K](/glossary/k) | [L](/glossary/l) | [M](/glossary/m) | [N](/glossary/n) | [O](/glossary/o) | [P](/glossary/p) | [Q](/glossary/q) | [R](/glossary/r) | [S](/glossary/s) | [T](/glossary/t) | [U](/glossary/u) | [V](/glossary/v) | [W](/glossary/w) | [X](/glossary/x) | [Y](/glossary/y) | [Z](/glossary/z) ## P ## PaaS (Platform as a Service) A cloud computing model that provides a platform for developing, running, and managing applications without infrastructure complexity. ## Packet A formatted unit of data carried by a packet-switched network, containing both payload data and routing information. ## Partition A logical division of data or resources that enables parallel processing, improved performance, and better management. ## Patch Management The process of applying updates and fixes to software systems to address security vulnerabilities and bugs. ## Payload The actual data being transmitted in a message, packet, or API request, excluding headers and metadata. ## Peak Load The maximum amount of work or traffic a system experiences during its busiest periods, used for capacity planning. ## Performance The measure of how efficiently a system executes tasks, typically including speed, throughput, and resource utilization. ## Persistent Storage Storage that retains data even after the system or application that created it is shut down or terminated. ## Pipeline An automated sequence of processes that takes code from version control through building, testing, and deployment to production. ## Platform The underlying technology infrastructure that supports the development and execution of applications and services. ## Pod The smallest deployable unit in Kubernetes that can contain one or more containers sharing storage and network resources. ## Point-in-Time Recovery The ability to restore a database or system to a specific moment in time using transaction logs and backups. ## Policy A set of rules and guidelines that govern access, behavior, or configuration within cloud environments and systems. ## Port A numerical identifier for specific processes or network services on a computer, enabling targeted communication. ## PostgreSQL An open-source relational database system known for its advanced features, extensibility, and SQL compliance. ## Private Cloud A cloud computing environment dedicated to a single organization, providing greater control and security than public clouds. ## Proxy An intermediary server that forwards requests between clients and other servers, often providing additional functionality. ## Public Cloud Cloud computing services offered over the public internet by third-party providers, shared among multiple customers. ## Parallel Processing Simultaneous execution of multiple tasks or operations to improve performance and reduce overall processing time. ## Parameter Store A service for storing configuration data and secrets in a hierarchical format with access control and encryption. ## Patch A software update designed to fix bugs, security vulnerabilities, or add minor improvements to existing systems. ## Peering A network connection between two separate networks that allows them to exchange traffic directly. ## Performance Monitoring The continuous observation and measurement of system performance metrics to ensure optimal operation. ## Persistent Volume Storage resources in Kubernetes that exist independently of pods and retain data across pod restarts and rescheduling. ## Ping A network utility that tests connectivity between devices by sending ICMP echo request packets and measuring response time. ## Platform Engineering The discipline of designing and building toolchains and workflows that enable self-service capabilities for software engineering teams. ## Polling A technique where a client repeatedly checks a server for updates or new data at regular intervals. ## Port Forwarding Redirecting network traffic from one port to another, often used to access services running on different ports or hosts. ## Preemptible Instance A virtual machine instance that can be terminated by the cloud provider with short notice in exchange for lower pricing. ## Primary Key A unique identifier for records in a database table that ensures each row can be distinctly identified. ## Private Subnet A network segment that doesn't have direct internet access, typically used for backend services and databases. ## Prometheus An open-source monitoring and alerting toolkit designed for reliability and scalability in dynamic cloud environments. ## Protocol A set of rules and standards that govern how data is transmitted and received over a network. ## Provisioning The process of setting up and configuring computing resources, networks, and services to meet specific requirements. ## Pub/Sub A messaging pattern where publishers send messages to topics without knowing who will receive them, and subscribers receive messages from topics. ## Push Notification Messages sent from servers to user devices or applications to provide real-time updates and information. ## Packet Loss The failure of network packets to reach their destination, often caused by network congestion or hardware issues. ## Partitioning Dividing large datasets or databases into smaller, more manageable pieces to improve performance and scalability. ## Password Policy Rules and requirements that govern password creation, complexity, and management to enhance security. ## Path-Based Routing Directing network traffic to different backends based on the URL path in HTTP requests. ## Performance Baseline A reference point that establishes normal system performance levels for comparison and monitoring purposes. ## Permission Authorization that grants or denies access to specific resources or actions within a system or application. ## Personal Access Token A secure string of characters used for authentication that represents a user's identity for API access. ## Phishing A cybersecurity attack that attempts to trick users into revealing sensitive information by impersonating trusted entities. ## Placement Group A logical grouping of instances within a single Availability Zone to provide low network latency and high throughput. ## Playbook A documented set of procedures and automated scripts used for system administration, incident response, and troubleshooting. ## Point of Presence (PoP) A physical location where internet service providers connect to other networks, often housing CDN edge servers. ## Polyglot Using multiple programming languages or database technologies within a single application or system architecture. ## Port Scanner A security tool that probes network ports to identify open services and potential vulnerabilities on target systems. ## PostgreSQL Extension Additional functionality that can be installed in PostgreSQL databases to extend capabilities beyond core features. ## Pre-signed URL A URL that grants temporary access to private resources without requiring authentication credentials. ## Primary Region The main geographic region where an organization's primary resources and data are hosted and managed. ## Priority Queue A data structure where elements are processed based on priority levels rather than first-in-first-out order. ## Process Isolation Separating running processes to prevent them from interfering with each other or accessing unauthorized resources. ## Production Environment The live system where applications run and serve actual users, requiring high reliability and performance standards. ## Profiling The analysis of program performance to identify bottlenecks, memory usage patterns, and optimization opportunities. ## Programming Language A formal language comprising instructions that can be used to produce various kinds of machine code output. ## Proof of Concept (PoC) A demonstration to verify that certain ideas or methods have the potential for real-world application. ## Provider An organization that offers cloud computing services, infrastructure, or platforms to customers over the internet. ## Provisioned Throughput Pre-allocated performance capacity for databases or storage systems that guarantees specific read and write capabilities. ## Public Subnet A network segment with direct internet access, typically used for web servers and load balancers facing the internet. ## Pull Request A method of submitting contributions to software projects, allowing code review before changes are merged into the main codebase. ## Push Model A data distribution approach where the server proactively sends information to clients without waiting for requests.