Networks and Security Foundations D315 100% Accurate

Networks and Security Foundation Network - ANSWER A chain of communication that connects places. NOT THE INTERNET. Your home is its own ____ Hub - ANSWER Dumb, doesn't think, sits at physical layer of OSI model, Connects router to the network, sends data packets to ALL connected devices. Switch - ANSWER Used to connect devices in a specific networks, Builds a MAC address tables and sends accordingly. Is a more complex version of a Hub. Forwards data packets. Sits at Data Link Layer of the OSI model. Router - ANSWER is a point of connection between two or more networks. Connects to other IP's. Forwards data packets between networks. Sits at network layer of the OSI model. Access Point - ANSWER Used to interconnect wireless devices and provide a connection to the wired LAN. Different than wireless router. Sits at data link layer of OSI model. Protocol - ANSWER Set of rules established for users to gain control of the network to exchange information. Topology - ANSWER Is the network architecture used to interconnect the networking equipment. 3 common network topologies - ANSWER Star Network, Ring Network, and Bus network are common what? Bus Topology - ANSWER Old, used when the internet wasn't around, uses a cable/backbone/Datalink which is terminated on either end. Data packets travel with electric signals in 1 direction, called half duplex. Basically first come first serve, easy to setup, doesn't cost alot. Token Ring or Ring Topology - ANSWER Was created to overcome 1st come first serve of bus topology. Uncommon, setup for specific reasons, each device passes a token at a certain time. Continuous path, loop, or ring. Star Topology - ANSWER Not actually in a star, Could be cat cables to a patch panel in an office connected to a server room with a switch. All network devices are connected to hub or switch. The network devices do not share data connections to/from the hub or switch. A hub broadcasts all data traffic to all networking devices connected to its data ports. One downside is single point of failure if hub/switch breaks. Mesh topology - ANSWER Overcomes star topology single point of failure. These are complicated and expensive. The world wide web or internet is an example of this. Has redundant data paths. All network devices are heavily interconnected. Can b e called Hub and Spoke. Physical address - ANSWER Another term for MAC address logical address - ANSWER another term for IP address Layers of OSI Model - ANSWER Layer 1 - Physical Layer 2 - Data Link Layer 3 - Network Layer 4 - Transport Layer 5 - Session Layer 6 - Presentation Layer 7 - Application (All People Seem To Need Dominoes Pizza) Layers of the TCP/IP Model - ANSWER Application, transport,Network, and network interface TCP/IP (Transmission Control Protocol/Internet Protocol) Model - ANSWER Used to connect network devices OSI Model - ANSWER A Framework for networking that ensures compatibility in the nets D315 100% Accurate