Master the Fundamentals of Network Representations and Security with this Quiz

Overview of Network Representations, Topologies, Types, and Security

• Network diagrams use symbols to represent devices and connections in a network, providing an easy way to understand how devices connect in a large network.
• Topology diagrams come in two types: physical, which show the physical location of devices and cable installation, and logical, which illustrate devices, ports, and addressing schemes.
• Small home networks and SOHO networks connect a few computers to each other and to the internet, while medium to large networks, such as those used by corporations and schools, can have many locations with hundreds or thousands of interconnected hosts.
• LANs span a small geographical area, while WANs span a wide geographical area, and intranets refer to private connections of LANs and WANs belonging to an organization.
• Internet connections for SOHOs include cable, DSL, cellular, satellite, and dial-up telephone.
• Network architecture refers to the technologies that support the infrastructure and the programmed services and rules, or protocols, that move data across the network.
• Network architects must address four basic characteristics to meet user expectations: fault tolerance, scalability, quality of service (QoS), and security.
• Network security concerns can be divided into network infrastructure security and information security, with confidentiality, integrity, and availability as the primary requirements.
• Networking trends affecting organizations and consumers include BYOD, online collaboration, video communications, and cloud computing.
• Cloud computing offers four primary types of clouds: public, private, hybrid, and custom.
• Smart home technology is currently being developed for all rooms within a house, and powerline networking sends data on certain frequencies using the same wiring that delivers electricity.
• Network security threats include viruses, worms, Trojan horses, spyware, adware, zero-day attacks, threat actor attacks, denial of service attacks, data interception and theft, and identity theft. Home and small office networks use antivirus, antispyware, and firewall filtering, while larger and corporate networks also use dedicated firewall systems, access control lists (ACL), intrusion prevention systems (IPS), and virtual private networks (VPN).