COMP504

- Circuit configuration is the basic physical layout of the circuit. There are two fundamental circuit configurations: Point-to-Point and Multipoint. - Multipoint Circuit: In this configuration, many computers are connected to the same circuit. Also called a shared circuit. - Data Flow - Simplex transmission is one-way transmission, such as that with radios and TVs. - Half-duplex transmission is a two-way transmission, but you can transmit in only one direction at a time, such as a w

Remember the name of error detection technies - The Data Link layer is responsible for communications between end-device network interface cards - It allows upper layer protocol to access the physical layer media and encapsualtes Layer 3 packets (IPv4 and IPv6) into Layer 2 Frames. - It also performs error detection and rejects corrupted frames. - The data link layer does not specify the type of connections and electrical signals, radio waves, or light pulses - that is the physical layer. - Err

IPV4 Public Address Space - IPV4 uses 32 bits (4 bytes) to define an address. - Therefore, the number of available addresses is 232 = 4,294, 967, 296 or approxiamtely 4.3 billion - These addresses in the IPv4 address space are divided into Internet address classes. - As we Ping command to test connectivity after configuration with the required IP addresses, the command uses the most basic interior routing protocol on the Internet which is Internet Control Message Protocol. Subnet: is a group o

- Client-Server Architect - Web browsing is an example of a client-server application architecture. - In a client-based network, all data on the server must travel to the client for processing. - Middleware: is software that sits between the application software on the client and the server. It enhances the functionality of a client-server application by facilitating communication and data management. - Two-Tier, Three-Tier, and n-Tier Architectures - In three-tier architecture, the

- CSMA/CD (Carrier Sense Multiple Access with Collision Detection) is not used in token ring protocol LANs. It is a contention-based media access control technique used in Ethernet networks. - CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) is a network protocol that helps prevent collisions in wireless networks. - Focus on cables, acces point, LAN components, Domain controller, Switch-Based Ethernet, Switch Forwarding Table, Switch Modes, WLAN standards.