Term 601
Redis
Redis is an open-source, in-memory data structure store used as a database, cache, and message broker for high-speed data access.
Acronym study
Terms 601–630 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 601
Redis is an open-source, in-memory data structure store used as a database, cache, and message broker for high-speed data access.
Term 602
A technology that combines multiple physical hard drives into a single logical unit to improve performance, reliability, or both.
Term 603
A regional load balancer distributes incoming network traffic across resources located in multiple geographic regions to ensure high availability, low latency, and fault tolerance at a global scale.
Term 604
Regional Persistent Disk is a durable, block-level storage option in Google Cloud that automatically replicates data across two zones in a region to protect against zone failures.
Term 605
A modular connector standard used for Ethernet cabling, commonly known as the 8P8C connector with a specific wiring pattern for structured network wiring.
Term 606
An RJ45 connector is the clear plastic plug at the end of an Ethernet cable that connects computers, routers, and switches to form a wired network.
Term 607
Remote Desktop Protocol is a technology that lets you connect to and control another computer from a different location, as if you were sitting in front of it.
Term 608
Remote Monitoring and Management (RMM) is a technology that allows IT professionals to monitor, manage, and maintain computer systems and networks from a distant location without being physically present.
Term 609
Resilient File System (ReFS) is a Microsoft file system designed to maximize data availability, resist corruption, and handle large volumes of data efficiently.
Term 610
Resource pooling is a cloud computing model where a provider's computing resources are shared across multiple tenants, with resources dynamically assigned and reassigned based on demand.
Term 611
Revolutions Per Minute (RPM) measures how many full rotations a spinning component, such as a hard drive platter or a cooling fan, completes in one minute.
Term 612
RJ45 is a standardized physical connector used to plug Ethernet cables into computers, routers, switches, and other networking devices.
Term 613
ROM (Read-Only Memory) is a type of computer memory that permanently stores important instructions needed to start up and run hardware, and its contents cannot be easily changed or erased.
Term 614
A route is a path that data takes through a network from one device or network to another, determined by routing protocols and configured rules.
Term 615
Route 53 is Amazon Web Services’ cloud-based Domain Name System (DNS) web service that translates human-readable domain names into IP addresses and routes end-user requests to internet applications.
Term 616
Route summarization is a technique that combines multiple network routes into a single, more general route advertisement to reduce the size of routing tables and improve network performance.
Term 617
A route table is a set of rules, called routes, that determine where network traffic from a subnet or virtual network is directed.
Term 618
A router is a networking device that connects different networks together and directs data traffic between them by choosing the best path for data to travel.
Term 619
A Router Advertisement is a message sent by a router on a network to inform devices about the router's presence and provide them with essential configuration information for communication.
Term 620
The Router ID is a unique 32-bit identifier assigned to a router running the OSPF routing protocol, used to distinguish it from other routers in the network.
Term 621
A router-on-a-stick is a network configuration where a single router interface is used to route traffic between multiple VLANs by connecting to a switch through a trunk link.
Term 622
Routing Information Protocol (RIP) is a distance-vector routing protocol that routers use to exchange information about network paths, using hop count as its metric to find the shortest route.
Term 623
A routing table is a data set stored in a router or host that contains information about network paths and is used to determine where to forward data packets.
Term 624
rsync is a command-line tool that synchronizes files and directories between two locations efficiently by transferring only the differences.
Term 625
An S3 bucket policy is a JSON-based resource-based access control document that defines who can access an Amazon S3 bucket and its objects, and what actions they can perform.
Term 626
S3 event notification is an AWS feature that automatically sends a message to a destination service when a specific event occurs in an Amazon S3 bucket.
Term 627
Amazon S3 Glacier is a secure, durable, and extremely low-cost cloud storage service designed for long-term data archiving and backup, where data is rarely accessed but must be retained for months or years.
Term 628
An S3 lifecycle policy is a set of rules that automatically transitions objects between storage classes or deletes them after a specified time to optimize cost and manage data lifecycles.
Term 629
S3 Object Lock is an AWS feature that allows you to set a retention period or a legal hold on objects in Amazon S3 to prevent them from being deleted or overwritten.
Term 630
S3 replication automatically copies objects from one Amazon S3 bucket to another to improve data durability, availability, or compliance.