Term 571
SNMP
A network protocol used to collect and organize information about managed devices on IP networks and to modify that information to change device behavior.
Acronym study
Terms 571–600 of 716 CCNA 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 571
A network protocol used to collect and organize information about managed devices on IP networks and to modify that information to change device behavior.
Term 572
A software-defined network (SDN) is a networking approach that separates the control plane (how traffic is directed) from the data plane (where traffic moves), allowing network administrators to manage and optimize traffic flow centrally through software instead of relying on individual hardware switches and routers.
Term 573
A Software-defined Wide Area Network (SD-WAN) is a virtual network architecture that uses software to manage and optimize the connections between branch offices and data centers across a wide geographic area.
Term 574
Sort is the process of arranging data in a specified order, typically alphabetically or numerically, to make it easier to search, analyze, or display.
Term 575
A southbound API is an interface that allows a network controller or orchestrator to communicate with and manage the physical or virtual network devices beneath it, like switches, routers, and firewalls.
Term 576
A Switch Port Analyzer (SPAN) is a feature on network switches that copies traffic from one or more ports to a monitoring port for analysis without disrupting normal network operations.
Term 577
The process by which switches in a network with redundant paths select a single root bridge and block certain ports to prevent loops while ensuring all devices can still communicate.
Term 578
The Shortest Path First algorithm calculates the most efficient path through a network by building a map of all routers and links.
Term 579
In networking, 'ss' is a command-line utility used to display detailed socket statistics, showing active connections, listening ports, and protocol information on Linux and Unix systems.
Term 580
SSH (Secure Shell) is a cryptographic network protocol that provides secure, encrypted communication and remote administration between two devices over an unsecured network.
Term 581
An SSID is the public name of a Wi-Fi network that devices use to identify and connect to it.
Term 582
SSL (Secure Sockets Layer) is a cryptographic protocol that encrypts data transmitted between a client and a server to ensure privacy and data integrity.
Term 583
An SSL VPN is a virtual private network that uses the Secure Sockets Layer protocol to create an encrypted tunnel for remote users to securely access network resources over the internet.
Term 584
A Standard Access Control List (ACL) is a sequential set of permit or deny rules that filters network traffic based solely on the source IP address.
Term 585
A network topology where each device is directly connected to a central hub or switch, and all data passes through that central point.
Term 586
A Start of Authority (SOA) record is a special DNS record that stores essential administrative information about a domain, including the primary name server, the responsible administrator email, and timing parameters for caching and updates.
Term 587
Startup configuration is the saved set of commands that tells a Cisco device how to behave every time it powers on or reloads.
Term 588
Startup Repair is a Windows recovery tool that automatically diagnoses and fixes common problems that prevent the operating system from booting properly.
Term 589
Stateless Address Autoconfiguration (SLAAC) is a method that allows a device on an IPv6 network to automatically generate its own IP address without needing a dedicated server to assign one.
Term 590
Static Network Address Translation (NAT) is a one-to-one mapping between a private IP address and a public IP address that never changes.
Term 591
A static route is a manually configured path in a router's routing table that tells the router exactly where to send packets for a specific destination network.
Term 592
Sticky MAC address is a switch security feature that dynamically learns and remembers a device’s MAC address on a specific port to prevent unauthorized devices from connecting.
Term 593
A Storage Area Network (SAN) is a dedicated, high-speed network that provides block-level storage access to servers, making storage appear as if it is directly attached to the server.
Term 594
A storage class is a category of data storage that defines how data is stored, accessed, retrieved, and billed in a cloud environment.
Term 595
A storage firewall is a security appliance or software that controls access to storage systems, protecting data from unauthorized access, malware, and insider threats by inspecting and filtering storage protocol traffic.
Term 596
A Storage Gateway is a service or device that connects on-premises IT environments to cloud storage, making cloud storage feel like a local drive or backup target.
Term 597
Storm control is a network feature that limits the amount of broadcast, multicast, or unknown unicast traffic on a switch port to prevent network disruptions.
Term 598
Shielded Twisted Pair (STP) is a copper cable that wraps each twisted pair in foil or braid to block electromagnetic interference.
Term 599
STP (Spanning Tree Protocol) is a network protocol that prevents loops in Ethernet networks by creating a loop-free logical topology.
Term 600
STP convergence is the process by which a network of switches using the Spanning Tree Protocol reaches a stable, loop-free topology after a change in the network.