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Chapter 8
Ch 8.2 Vocab
| Term | Definition |
|---|---|
| PaaS | A cloud computing service that provides hardware and an operating system and is responsible for updating and maintaining both. |
| PAN | small network used for communicating between personal devices. |
| patch cable | A network cable that is used to connect a PC to a hub, switch, or router. |
| patch panel | A device that provides multiple network ports for cables that converge in one location such as an electrical closet or server room. |
| plenum | airspaces between the floors of buildings. |
| PoE injector | A device that adds power to an Ethernet cable so the cable can provide power to a device. |
| PoE-rated switch | uses the Power over Ethernet feature to allow power to be transmitted over Ethernet cable. |
| port flapping | occurs when a particular interface or port on a switch is continually going up and down. |
| power over Ethernet (PoE) | a PoE standard that transmits power over an Ethernet cable that is specified in IEEE 802.3af & sends up a maximum of 15.4 watts of power through CAT-5 cabling to the device. |
| private cloud | serves only one customer or organization and can be located on the customer's premises or off the customer's premises. |
| public cloud | Provides cloud services to just about anyone. |
| punchdown tool | A hand tool used to punch individual wires from a network cable into their slots to terminate the cable. |
| rapid elasticity | A cloud computing service that is capable of scaling up or down as a customer's need level changes. |
| repeater | A networking device that amplifies and retransmits a wireless signal to a wider coverage area and uses a new network name for the rebroadcast. |
| SaaS | a subscription service where you purchase licenses for software that expire at a certain date. |
| SAN | a specialized, high-speed network for storing and sharing files. |
| Sandbox | an isolated environment where users and developers can learn and experiment safely without affecting the live environment. |
| shielded twisted-pair (STP) cable | A cable that is made of one or more twisted pairs of wires and is surrounded by a metal shield. |
| SIM (subscriber identity module) card | a small flash memory card that contains all the information a device needs to connect to a GSM or LTE cellular network, including password and other authentication information needed to access the network, encryption standards used, and the services that |
| software-defined networking (SDN) | the use of software applications and programs to virtualize networking by replicating how a switch, router, or other networking hardware functions, while constantly monitoring the status of each device. |
| straight-through cable | An Ethernet cable used to connect a computer to a switch or other network device. Also called a patch cable. |
| supervisory control and data acquisition (SCADA) | embedded computer systems designed to monitor and control machinery from a single location. |
| T568A | Standards for wiring twisted-pair network cabling and RJ-45 connectors; in T568A, the green pair of wires is connected to pins 1 and 2 and the orange pair is connected to pins 3 and 6. |
| T568B | Standards for wiring twisted-pair network cabling and RJ-45 connectors; in T568B, the orange pair of wires uses pins 1 and 2 and the green pair is connected to pins 3 and 6. |
| toner probe | A two-part kit used to find cables in the walls of a building. The toner connects to one end of the cable and puts out a pulsating tone that the probe can sense. |
| Unified Threat Management (UTM) | A computer, security appliance, network appliance, or Internet appliance that stands between the Internet and a private network. A UTM device runs a firewall, anti-malware software, and other software to protect the network, and is considered a next-gener |
| Unshielded Twisted-Pair (UTP) cable | Twisted-pair networking cable commonly used on LANs that is less expensive than STP cable and does not contain shielding to prevent electromagnetic interference. |
| virtual desktop | When a hypervisor manages a virtual machine and presents the VM's desktop to a user. A remote user normally views and manages the virtual desktop via a browser on the local computer. |
| Virtual Desktop Infrastructure (VDI) | A presentation of a virtual desktop made to a client computer by a server that is serving up a virtual machine. |
| Virtual LAN (VLAN) | A subnet of a larger network created to reduce network traffic. |
| Virtual Private Network (VPN) | Allows a secure private connection over a public network, using an encrypted 'tunnel'. |
| Wide Area Network (WAN) | A network that connects devices in geographically separated areas. |
| Wireless Local Area Network (WLAN) | Type of LAN that doesn't use wires or cables to create connections, but instead transmits data over radio or infrared waves. |
| XaaS | a cloud computing model that can work with a combination of other models: SaaS, IaaS, PaaS. |
Created by:
CarlyJo87