Domain Name System (DNS) - a network device that translates hostnames nto IP addresses through a process called name resolution., Virtual Private Network (VPC) - Used to ensure secure connection across the internet. , HTTP - Hypertext transfer protocol located on port 80 and is used for unsecured web browsing , HTTPS - located on port 443 and is used for secured web browsing. , Firewall - A layer 3 network security device used to monitor inbound and outbound traffic., DHCP - Dynamic Host Configuration protocol is used to give network devices an IP address., Domain - Is a group of workstation or users that share data via network , Switch - a layer 2 device that connects multiple devices on a network, Router  - A layer 3 device is used to connect different networks together, OSI Model - 1-Physical layer, 2-Data link layer, 3- Network layer, 4-Transport layer, 5-Session layer, 6- presentation layer, 7- Application layer, Port - A virtual network point fo entry , TCP - transmission control protocol, that establishes a connection between client and server., Proxy Server - It Acts as an intermediary between a users device and the internet , Server - A device that provides data resources to a network , CIA - confidentiality, Integrity, and availability, CIA is a model used to guide security policies and info security.  , BIOS (Basic Input/Output System) - a type of firmware embedded on a computer's motherboard that acts as the initial software to run when a computer starts up, Ipconfig  - Internet Protocol Configuration, is a command-line utility that displays and manages a computer's network settings, Transmission Control Protocol/Internet Protocol (TCP/IP) - a set of protocols that govern how computers communicate and transfer data over the internet, IDS and IPS - Intrusion Detection System is used to detect intrusions on systems and Intrusion Prevention systems detects and protect against intrusions , IP Address - the unique identifying number assigned to every device connected to the internet., MAC (Media Access Control) - used to verify the computer's physical address., Static vs Dynamic IP - When a device is assigned a static IP address, the address does not change. Most devices use dynamic IP addresses, which are assigned by the network when they connect and change over time., Network Address Translation (NAT) - allows private networks to connect to the internet by translating their internal IP addresses into public IP addresses,

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