Cisco Introduction to Networking Chapter 1 ALL SOLUTION LATEST EDITION 2023 GUARANTEED GRADE A+

All computers connected to a network that participates directly in network communication are classified as. Hosts known as end devices. What is a server? Servers are computers with s software that enable them to provide services to devices on the network. File Server Stores corporate and user files in a central location. Client devices access this media. Peer to Peer Networking When one computer carries out the role of both client and server. End Device End device is either the source or destination of a message transmitted over the network Role of Intermediary Network Devices Intermediary devices connect the individual end devices to the network and can connect multiple individual networks to form an internetwork Intermediary Network Devices Some Responsibilities. 1. Classify and Direct Data. 2. Permit or deny flow of data. 3. Notify other devices if an error in the pathway exists 14 Maintain information. Some Intermediary Network Devices 1. Wireless Router 2. Multi-layer Switch 3. Firewall Application 4. Router 5. LAN Switch Three types of media to interconnect devices. 1. Copper 2. Fiber-Optic 3. Wireless Data encoding for each type of media that interconnects devices Copper: Electric Pulses Fibre-Optic: Pulses of light Wireless: wavelengths Network Interface Card A NIC, or LAN adapter, provides the physical connection to the network at the PC or other end device. Physical Port A connector or outlet on a networking device where the media is connected to an end device or another networking device. Interface Specialized ports on a networking device that connect to individual networks. Ports on a router are considered Interfaces LAN Local Area Network Geographical location of LAN Single WAN Wide Area Network s Geographical location Spans multiple geographical location MAN Metropolitan Area Network Man Size Larger then a LAN Smaller then a WAN SAN Storage Area Network Three Main Characteristics of a LAN interconnects end devices. Administrated by a single org High speed bandwidth for internal devices and Intermediary devices. Three Main Characteristics of a WAN Slower speeds between LANS Administrated by multiple providers WANS intro connect LANS What is the Internet Worldwide collection of intro connected networks. Who owns the internet Nobody Intranet Private collection of LANS and WANS that belong to an organization. Extranet Individuals who do not work directly for the org but still need access to the organizations network. Four basic characteristics of a reliable network 1. Fault Tolerance 2. Security 3. Quality of Service 4. Scalability What is a fault tolerant network. A fault tolerant network is one that limits the impact of a failure, so that the fewest number of devices are affected. This means multiple paths for packets to take to get to their end destination. One way reliable networks provide redundancy. Implementing a packet switched network Scalable Network A scalable network can expand quickly to support new users and applications without impacting the performance of the service being delivered to existing users. Three Components of Security CONTINUED...