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A local network, often referred to as a Local Area Network (LAN), is a group of connected devices within a limited geographic area, such as a home, office, or building, enabling resource sharing and communication. It typically uses Ethernet or Wi-Fi technology to connect computers, printers, and other devices, facilitating efficient data exchange and internet access within the networked environment.
Concept
Ethernet is a widely used networking technology that facilitates data communication over local area networks (LANs) by using a set of protocols to control how data is transmitted and received. It provides a reliable and efficient method for connecting devices within a network, utilizing both wired and wireless connections to ensure seamless data exchange.
Concept
Wi-Fi is a wireless networking technology that uses radio waves to provide high-speed internet and network connections. It enables devices such as smartphones, laptops, and tablets to connect to the internet without the need for physical cables, facilitating mobility and convenience in accessing digital information.
Network topology refers to the arrangement of different elements (links, nodes, etc.) in a computer network. It is crucial for determining the performance, scalability, and fault tolerance of the network infrastructure.
IP addressing is a fundamental aspect of networking that assigns unique numerical labels to devices on a network, allowing them to communicate with each other. It is essential for routing data across interconnected networks, ensuring each packet reaches its correct destination.
Concept
Subnetting is a technique used in IP networking to divide a larger network into smaller, more manageable subnetworks, enhancing both performance and security. It optimizes the use of IP addresses and reduces network congestion by localizing traffic within subnets.
Network protocols are standardized rules that govern how data is transmitted and received across networks, ensuring reliable and secure communication between different devices and systems. They are essential for interoperability, enabling diverse devices and applications to communicate seamlessly within and across networks.
Concept
Switching refers to the process of directing data packets between devices on a network, ensuring efficient and accurate data transmission. It is a fundamental aspect of networking that involves various techniques to manage and optimize the flow of information across different network segments.
Concept
Routing is the process of selecting paths in a network along which to send data packets, ensuring efficient and reliable communication between devices. It involves the use of algorithms and protocols to determine the best path based on factors like network topology, traffic load, and link costs.
Network security involves implementing measures to protect the integrity, confidentiality, and availability of computer networks and data. It encompasses a variety of technologies, devices, and processes to defend against unauthorized access, misuse, malfunction, modification, destruction, or improper disclosure of network resources.
Concept
Dynamic Host Configuration Protocol (DHCP) is a network management protocol used to automate the process of configuring devices on IP networks, allowing them to use network services such as DNS, NTP, and any communication protocol based on UDP or TCP. It reduces the need for a network administrator to manually assign IP addresses to all network devices, thus minimizing configuration errors and IP address conflicts.
Concept
The Domain Name System (DNS) is a hierarchical and decentralized naming system used to resolve human-readable domain names into IP addresses, enabling users to access websites using easy-to-remember names instead of numerical IP addresses. It functions as the internet's phonebook, coordinating the translation process through a distributed network of servers to ensure efficient and reliable access to online resources.
Multicast DNS (mDNS) is a protocol that allows devices on the same local network to perform DNS-like operations without the need for a conventional DNS server. It is primarily used for service discovery and name resolution in environments where a central DNS server is not available, such as in home or small office networks.
Link-Local Multicast refers to the use of multicast addresses to enable communication between devices on the same local network segment without requiring a router to forward the messages. This is commonly used for tasks such as network discovery and configuration where devices need to communicate with multiple peers efficiently within a local network environment.
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