Network

/aɪ.diː.ɛs/

noun — "the alarm system that spots network threats before they strike."

IDS, short for Intrusion Detection System, is a security tool that monitors network or system activity for suspicious behavior or policy violations. It identifies potential attacks, unauthorized access, and malicious activity, alerting administrators so they can respond quickly.

/ˈfaɪər.wɔːl/

noun — "the digital gatekeeper that keeps networks safe."

Firewall is a network security device or software that monitors and controls incoming and outgoing network traffic based on predefined security rules. It protects networks, devices, and applications from unauthorized access, malware, and cyberattacks while allowing legitimate communications to pass through.

/viː.læn/

noun — "the invisible walls that organize a network."

VLAN, short for Virtual Local Area Network, is a network configuration that segments a physical LAN into multiple logical networks, allowing devices to be grouped together based on function, department, or security requirements rather than physical location. VLANs improve traffic management, enhance security, and reduce broadcast domains within enterprise networks.

/wæn/

noun — "the network that stretches far beyond your office walls."

WAN, short for Wide Area Network, is a telecommunications network that connects multiple local area networks (LANs) over large geographic areas, such as cities, countries, or even continents. WANs enable data exchange between remote sites, branch offices, and cloud services, often relying on leased lines, MPLS, or Internet connections.

/swɪtʃ/

noun — "the network’s smart connector that keeps data flowing to the right place."

Switch is a network device that connects multiple devices within a LAN and forwards data frames only to the intended destination device, improving efficiency and reducing collisions compared to hubs. Switches operate at the data link layer (Layer 2) and can also function at the network layer (Layer 3) for routing capabilities.

/ˈraʊ.tər/

noun — "the traffic director of a network."

Router is a network device that forwards data packets between computer networks, determining the optimal path for information to travel from a source to a destination. It connects different networks such as LANs, WANs, and the Internet Protocol, managing traffic efficiently to prevent congestion and ensure reliable communication.

/ˈbænd.wɪdθ/

noun — "the pipeline width that determines how much data can flow."

/kjuːˌoʊˈɛs/

noun — "the traffic cop that keeps networks running smoothly."

QoS, short for Quality of Service, is a network management mechanism that prioritizes certain types of traffic to ensure reliable performance, low latency, and minimal packet loss. It is widely used in IP networks, VoIP, streaming, and enterprise networks to guarantee bandwidth and service levels for critical applications while controlling congestion.

/ˌsiː.piːˈiː/

noun — "the device at your home that connects you to the network."

CPE, short for Customer Premises Equipment, refers to the hardware located at the subscriber’s location that interfaces with the service provider’s network. This includes devices such as modems, routers, set-top boxes, and VoIP adapters, enabling end-users to access broadband services, voice, and multimedia delivered via technologies like G.fast, VDSL, or fiber-optic connections.

/ˌdiː.piːˈjuː/

noun — "the street-side box that delivers gigabit speeds over copper."