"A computer network is a set of computers sharing resources located on or provided by network nodes."
The study of how devices are interconnected to share resources and information.
Network Topologies: Network topologies refer to the physical or logical arrangement of nodes in a network, including bus, star, mesh, ring, and hybrid topologies.
Network Architecture: Network architecture refers to the design of a network, including the physical and logical components, protocols, and communication patterns.
Networking Devices: Networking devices, such as routers, switches, hubs, and modems, are used to connect and manage network traffic.
Network Protocols: Network protocols, such as TCP/IP, HTTP, FTP, and SMTP, are sets of rules that govern network communication.
Network Security: Network security involves protecting a network from unauthorized access, viruses, and malware, and includes topics such as firewalls, intrusion detection and prevention, and encryption.
Network Standards: Network standards refer to the rules and guidelines that ensure interoperability between networking devices and applications, such as Ethernet, Wi-Fi, and VoIP.
Network Management: Network management involves monitoring, configuring, and maintaining the health and performance of a network, and includes topics such as network monitoring tools, management protocols, and cloud-based network management.
Network Design: Network design involves planning and implementing a network, including the selection of networking devices, protocols, and topologies that meet specific business requirements.
Network Troubleshooting: Network troubleshooting is the process of identifying and correcting issues that affect network performance, including topics such as protocol analysis, fault isolation, and network performance tuning.
Virtualization: Virtualization refers to the partitioning of a physical server into multiple virtual servers, which can be used to support multiple applications, reduce costs, and increase efficiency.
Cloud Computing: Cloud computing refers to the delivery of computing resources over the internet, such as software, storage, and processing power, which can help reduce costs and increase scalability.
Network Monitoring and Analysis: Network monitoring and analysis involve using specialized tools and techniques to monitor and analyze network traffic, identify issues, and optimize network performance.
Wireless Networking: Wireless networking refers to the use of radio waves to connect devices, such as laptops, smartphones, and IoT devices, to a network, and includes topics such as Wi-Fi, cellular networks, and Bluetooth.
Internet of Things (IoT): IoT refers to the network of interconnected devices, sensors, and appliances that can communicate and share data, and includes topics such as sensor networks, industrial automation, and smart home technology.
Network Backup and Recovery: Network backup and recovery involves implementing strategies and tools to protect against data loss, such as data backups, disaster recovery plans, and system redundancy.
Software-Defined Networking: Software-defined networking (SDN) involves using software to control network traffic and routing, which can help increase flexibility, reduce costs, and improve network performance.
Network Performance Optimization: Network performance optimization involves using techniques such as traffic analysis, load balancing, and network virtualization to optimize network performance and improve user experience.
Local Area Networks (LANs): A network connecting devices within a small geographical area such as a home, office, or campus.
Wide Area Networks (WANs): A network connecting devices across a large geographic area, such as a city or country, through the use of leased lines, satellites, or other connectivity solutions.
Metropolitan Area Networks (MANs): A high-speed network designed to connect computers and other devices within a city or metropolitan area.
Virtual Private Networks (VPNs): A private network that uses public networks to connect remote sites or users securely.
Campus Area Networks (CANs): A network designed to connect multiple interconnected buildings within a limited geographic area, typically linked by a high-speed backbone.
Storage Area Networks (SANs): A specialized network that provides high-speed access to storage devices and enables the sharing of data among numerous servers.
Peer-to-Peer Networks (P2P): A decentralized network in which each user can exchange files, services, or information without relying on a central server.
Wireless Networks: A network that allows devices to communicate wirelessly using radio waves or infrared signals.
Cloud Networks: A network that allows cloud-based services such as storage and applications to be accessed remotely through a network connection.
Serial Networks: An older network architecture that uses serial connections to transfer data between devices.
Token Ring Networks: An older network architecture in which a token is passed between devices, allowing each device to communicate in turn.
FDDI Networks: An older network architecture that uses fiber-optic cables to transmit data at high speeds.
Ethernet Networks: A LAN architecture that uses a bus or star topology and CSMA/CD (Carrier Sense Multiple Access with Collision Detection) protocol to provide shared access to a network.
InfiniBand Networks: A high-speed network architecture designed to interconnect enterprise-level servers and storage devices for increased performance and scalability.
"Computers use common communication protocols over digital interconnections to communicate with each other."
"These interconnections are made up of telecommunication network technologies based on physically wired, optical, and wireless radio-frequency methods."
"The nodes of a computer network can include personal computers, servers, networking hardware, or other specialized or general-purpose hosts."
"They are identified by network addresses and may have hostnames."
"Hostnames serve as memorable labels for the nodes and are rarely changed after initial assignment."
"Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol."
"Computer networks may be classified by many criteria, including the transmission medium used to carry signals, bandwidth, communications protocols to organize network traffic, the network size, the topology, traffic control mechanisms, and organizational intent."
"Computer networks support many applications and services, such as access to the World Wide Web, digital video and audio, shared use of application and storage servers, printers and fax machines, and use of email and instant messaging applications."
"The nodes of a computer network can include personal computers, servers, networking hardware, or other specialized or general-purpose hosts."
"Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol."
"These interconnections are made up of telecommunication network technologies based on physically wired, optical, and wireless radio-frequency methods."
"Hostnames serve as memorable labels for the nodes and are rarely changed after initial assignment."
"A computer network is a set of computers sharing resources located on or provided by network nodes."
"Computer networks support many applications and services, such as access to the World Wide Web."
"The nodes of a computer network can include personal computers, servers, networking hardware, or other specialized or general-purpose hosts."
"Computers use common communication protocols over digital interconnections to communicate with each other."
"Computer networks may be classified by many criteria, including the transmission medium used to carry signals, bandwidth, communications protocols to organize network traffic, the network size, the topology, traffic control mechanisms, and organizational intent."
"Computer networks support many applications and services, such as shared use of application and storage servers, printers and fax machines."
"Computer networks support many applications and services, such as access to the World Wide Web, digital video and audio, shared use of application and storage servers, printers and fax machines, and use of email and instant messaging applications."