"A computer network is a set of computers sharing resources located on or provided by network nodes."
The physical and logical components of a network that enable the transmission of data between devices.
Networking Fundamentals: This topic includes concepts such as networking models, protocols, and topologies, which are the foundation for understanding how data travels through a network.
Network Devices: This topic covers the different types of network devices such as routers, switches, hubs, and firewalls, and their functions in a network.
Network Security: This topic involves securing the network from unauthorized access, attacks, and data breaches. It includes topics such as encryption, VPNs, firewalls, and intrusion detection systems.
Network Design: This topic includes designing a network topology based on the organization's requirements such as LAN, WAN, and VPN.
Network Administration: This topic covers the tasks and responsibilities of a network administrator including deploying, maintaining, and managing the network infrastructure.
Network Monitoring: This topic involves monitoring and maintaining network performance, uptime, and availability. It includes topics such as network monitoring software, network analysis, and troubleshooting.
WAN Technologies: This topic involves understanding different WAN technologies such as T1, MPLS, ISDN, and DSL, which are used to interconnect multiple LANs and remote users.
Cloud Computing: This topic covers cloud-based network infrastructure such as Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS).
Virtualization: This topic involves creating virtual versions of physical network components such as routers, switches, and firewalls to improve network efficiency and reduce costs.
Internet of Things (IoT): This topic involves understanding the connected devices and systems that are integrated into the network infrastructure such as smart devices, sensors, and industrial control systems.
Local Area Network (LAN): A LAN is a network that connects devices within a small geographic area, such as a home, office, or building.
Wide Area Network (WAN): A WAN connects devices across a larger geographic area and is typically used to connect LANs together.
Campus Area Network (CAN): A CAN is a network that connects multiple buildings and is located on a single campus or enterprise.
Metropolitan Area Network (MAN): A MAN is a network that connects several LANs together across a metropolitan area.
Storage Area Network (SAN): A SAN is a specialized network that connects storage devices and servers to improve data storage and access.
Wireless Local Area Network (WLAN): A WLAN is a wireless network that connects devices within a specified area using radio waves.
Virtual Private Network (VPN): A VPN is a secure network that allows remote workers to access company resources.
Cloud Network: A cloud network involves running applications and storing data in a remote server, rather than on local hardware.
Internet of Things (IoT): The IoT refers to a network of connected devices that can communicate with each other and share data, such as smart home appliances and wearable devices.
Intranet: An intranet is a private network used within an organization to share information and resources.
Extranet: An extranet connects two or more organizations so that they can share resources and collaborate on projects.
Peer-to-Peer (P2P) Network: A P2P network is a decentralized network where devices can communicate with each other directly, rather than through a central server.
Client-Server Network: A client-server network is a centralized network where one or more servers provide resources to clients, such as files and applications.
Point-to-Point (P2P) Network: A P2P network allows two devices to directly communicate with each other. This type of network is commonly used in video conferencing or file sharing.
Hybrid Network: A hybrid network is a combination of two or more different types of networks, such as a LAN and a WAN or a wired and wireless network.
"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."
"Hostnames 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, 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."
"These interconnections are made up of telecommunication network technologies based on physically wired, optical, and wireless radio-frequency methods."
"They are identified by network addresses and may have hostnames."
"Hostnames serve as memorable labels for the nodes."
"Hostnames 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, 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." Please note that the remaining three questions have already been answered in the previous set of quotes.