Acronym study
Terms 751–780 of 1033 N10-009 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 751
A Route 53 health check is a feature of Amazon Route 53 DNS service that monitors the availability and performance of an endpoint, such as a web server, from multiple global locations to automatically route traffic away from failures.
Term 752
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 753
A route table is a set of rules, called routes, that determine where network traffic from a subnet or virtual network is directed.
Term 754
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 755
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 756
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 757
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 758
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 759
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 760
RSA is a cryptographic algorithm that uses a pair of keys—a public key and a private key—to secure data in transit and verify identities.
Term 761
RSSI is a measurement of the power level in a received radio signal, used by wireless devices to gauge signal strength.
Term 762
RSTP (Rapid Spanning Tree Protocol) is a network protocol that quickly detects and recovers from link failures in Ethernet networks to prevent loops and ensure fast convergence.
Term 763
rsync is a command-line tool that synchronizes files and directories between two locations efficiently by transferring only the differences.
Term 764
RTP is a network protocol for delivering audio and video over IP networks in real time, with sequencing and timing but no retransmission.
Term 765
RTP is a network protocol for delivering audio and video over IP networks in real time, supporting streaming media applications.
Term 766
RX (Receive / Receiver) is the signal path or hardware component that accepts incoming data from a network medium.
Term 767
Software as a Service (SaaS) is a cloud computing model where you use software over the internet without installing it on your own computer.
Term 768
Safe Mode is a diagnostic startup mode in operating systems that loads only essential drivers and services, allowing users to troubleshoot and fix problems caused by non-critical software or hardware.
Term 769
A safety data sheet (SDS) is a document that lists the hazards, handling, storage, and emergency procedures for a chemical substance, required in workplaces including IT environments.
Term 770
Salting is the process of adding a unique, random string of data to each password before it is hashed, so that even identical passwords produce completely different hash values.
Term 771
A dedicated, high-speed network that provides block-level storage access to servers, making storage appear as locally attached drives.
Term 772
A sandbox is an isolated environment where you can run software or test code without affecting the rest of your system.
Term 773
Static Application Security Testing is a white-box method of analyzing source code, bytecode, or compiled binaries for security vulnerabilities without executing the program.
Term 774
SATA (Serial ATA) is an interface standard used to connect storage devices like hard drives and solid-state drives to a computer's motherboard.
Term 775
Satellite internet is a type of internet connection that uses satellites orbiting the Earth to send and receive data, allowing users in remote or rural areas to get online.
Term 776
An SBOM is a formal, machine-readable inventory of all software components and dependencies used in a software application or system.
Term 777
SC (Subscriber Connector) is a snap-in fiber optic connector with a square, push-pull coupling mechanism used for high-density data and telecom networks.
Term 778
SCA (Software Composition Analysis) is a security testing method that automatically identifies open-source components, libraries, and dependencies in software to find known vulnerabilities and license compliance issues.
Term 779
SCADA is an industrial control system that monitors and controls infrastructure processes like power grids, water treatment, and pipelines.
Term 780
Scalability is the ability of a system, network, or process to handle a growing amount of work by adding resources, either by making the existing resources more powerful (vertical scaling) or by adding more resources (horizontal scaling).