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Chapter 19
Ch 19 vocab
| Term | Definition |
|---|---|
| 802.11a | An outdated Wi-Fi standard that transmitted up to 54 Mbps. |
| 802.11ax (Wi-Fi 6) | A Wi-Fi standard that transmits up to 10 Gbps and uses 160 MHz channel spacing and eight antennas. It has better range. |
| 802.11b | An outdated Wi-Fi standard that transmitted up to 11 Mbps and experienced interference with cordless phones and microwaves. |
| 802.11g | An outdated Wi-Fi standard that was compatible with and replaced 802.11b. |
| 802.11n (Wi-Fi 4) | A current wireless network standard that has speeds of up to 600 Mbps and uses MIMO to improve performance. |
| AES | An encryption standard used by WPA2; it is currently the strongest encryption standard used by Wi-Fi. |
| DMZ | A computer or network that has limited or no firewall protection within a larger organization of protected computers and networks. |
| hostname | A name that identifies a computer, printer, or other device on a network, which can be used instead of the computer’s IP address to address the computer on the network. This name combined with the domain name is called the fully qualified domain name. |
| Kerberos | Software used within a network for a Windows client to authenticate to a Windows domain. |
| Microsoft Remote Assistance (MSRA) | A remote Windows application useful for virtual desktop support; allows a technician to provide help to a user on a remote computer. The user can remain signed in and retain control of the session while the technician gives help. |
| mstsc.exe | A command that allows you to remote into a host computer using Remote Desktop Connection. |
| net use | A Windows TCP/IP command that connects or disconnects a computer from a shared resource or can display information about connections. |
| net user | A Windows TCP/IP command used to manage user accounts. |
| netstat | A Windows command utility that gives statistics about network activity, and it includes several parameters. |
| nslookup | A TCP/IP command that lets you read information from the Internet namespace by requesting information about domain name resolutions from the DNS server’s zone data. |
| Pathping | A TCP/IP Windows command that combines the ping and tracert commands into a single command to help identify where a network might be slow or giving problems. |
| port forwarding | A technique that allows a computer on the Internet to reach a computer on a private network using a certain port when the private network is protected by NAT and a firewall that controls the use of ports. Also called port mapping. |
| RADIUS | A standard to authenticate and authorize users to wired, wireless, and VPN network connections. Authentication is made to a user database such as Active Directory. |
| Remote Desktop Connection (RDC) | A Windows tool that gives a user access to a Windows desktop from anywhere on the Internet. |
| reverse lookup | A way to find the host name when you know a computer’s IP address. The nslookup command can perform a reverse lookup. |
| Router | A device that manages traffic between two or more networks and can help find the best path for traffic to get from one network to another. |
| screened subnet | A network architecture where a single firewall is used with three network interfaces. It lowers risks from cyberattacks. |
| SSH protocol | A protocol that encrypts communications. It is commonly used in Linux to pass login information to a remote computer and control that computer over a network. It uses port 22. |
| TACACS+ | A protocol developed by Cisco that handles authentication, authorization, and accounting (AAA) services. |
| TKIP | A type of encryption protocol used by WPA to secure a wireless Wi-Fi network. |
| tracert | A TCP/IP command that enables you to resolve a connectivity problem when attempting to reach a destination host such as a website. |
| Tunneling | A technique used by a VPN or other utility to move data from one network to another through a process called encapsulation; in the example of a VPN, the data is encrypted from end to end. |
| UPnP | A feature of a SOHO router that enables computers on the local network to have unfiltered communication so they can automatically discover services provided by other computers on the network. |
| Virtual Network Computing (VNC) | A type of remote-control software that makes it possible to control another computer over a network connection. |
| wireless access point (WAP) | A wireless device that is used to create and manage a wireless network. |
| Z-Wave | A wireless communications protocol used primarily for residential and commercial building automation. |
| Zigbee | A standards-based wireless technology developed to enable low-cost, low-power wireless machine-to-machine (M2M) and internet of things (IoT) networks. |
Created by:
CarlyJo87