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1. An organization or company that manages the reservation and registration of domain names for individuals or businesses.
2. A physical medium employed in wired networks to transfer data between devices is utilized; some instances consist of Ethernet connections and coaxial connections.
3. A hardware device that allows wireless devices to connect to a wired network using Wi-Fi.
4. A protocol used for retrieving email from a server.
5. Hypertext Markup Language, a standard system for tagging text files to achieve font, color, graphic, and hyperlink effects on the World Wide Web.
6. The folder or section in an email client where incoming email messages are stored.
7. A network hardware device that connects multiple devices on a computer network, using packet switching to forward data to the intended destination device
8. A CSS Selector is a pattern used to select the elements you want to style in a web page.
9. A technology that transmits data as light pulses in wired networks using thin strands of glass or plastic (fibers).
10. A pair of cryptographic keys, consisting of a public key and a private key.
11. The higher-level domain from which the subdomain is created. It is often the main or primary domain.
12. A self-signed certificate issued by a Certificate Authority that establishes trust in the entire certificate chain.
13. Open Systems Interconnection model, a conceptual framework that standardizes the functions of a communication system into seven layers.
14. A unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
15. A network of physical devices, vehicles, appliances, and other objects embedded with sensors, software, and network connectivity that enables them to collect and exchange data.
16. A file or document that is sent along with an email message.
17. A protocol used to establish security associations in IPsec, allowing the negotiation of keys and algorithms for secure communication.
18. The Layer responsible for addressing, routing, and forwarding data packets across different networks.
19. A type of HTTP cookie that is stored on the user's computer for a longer period of time and remains even after closing the web browser.