پاورپوینت کامل Network + Course 104 اسلاید در PowerPoint

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پاورپوینت کامل Network + Course 104 اسلاید در PowerPoint

اسلاید ۴: Network+CompTIA Network+ Certification The CompTIA Network+ certification is the worldwide standard for professionals with at least nine months of experience in network support or administration. A Network+ certification demonstrates your technical abilities in networking administration and support, and validates your knowledge of media and topologies, protocols and standards, network implementation, and network support. If you have nine months of network administration and support experience, Network+ is ideal for you. Network+ and Your CareerMany corporations recommend or require the Network+ certification for their IT employees.

اسلاید ۵: Main Goals for this courseA requisite for CCNA CoursePassing the Network+ Exam and get the certificationRepresenting a solid background of networking knowledge regarding Network+ standard course

اسلاید ۶: Computer Network Concepts

اسلاید ۷: What is a Computer Network Two or more computers connected together, having the ability to use shared resources on each other.Two computers that are connected with a Network Cable through their network cards are an example of a simple network.

اسلاید ۸: Networking Concepts and ComponentsSomething to share ( Data ) Physical Pathway ( Transmission medium ) Interfaces for communication ( Network Interface ) Rules of Communication ( Protocols )

اسلاید ۹: Network Types ( 1 ) LAN ( Local Area Network ) A local area network (LAN) is a high-speed communications system that interconnects computers and peripherals that are located within a single office, a single building, or adjacent buildingsWAN ( Wide Area Network ) A WAN (wide area network) is a geographically dispersed telecommunications Network.

اسلاید ۱۰: LAN & WANLAN (Local Area Networks) -Limited geographical distance -High Speed -Local ConnectivityWAN (Wide Area Networks) -Unlimited geographical area -Lower Bandwidth -InterConnectivity -Third Party Management

اسلاید ۱۱: Network Types ( 2 )Network Topologies : 1 – Bus 2 – Star 3 – Ring 4 – Mesh (Full mesh Vs. Partial mesh)

اسلاید ۱۲: Bus Topology

اسلاید ۱۳: Star Topology

اسلاید ۱۴: Ring Topology

اسلاید ۱۵: Mesh Topology

اسلاید ۱۶: Network Types ( 3 ) Models of Network Computing : 1 – Centralized Computing 2 – Distributed Computing 3 – Collaborative Computing

اسلاید ۱۷: Centralized ComputingAll processing takes place in the central mainframe computerTerminals are connected to the central computer and function only as input/output devicesTerminals connect only to the mainframe, never to each other.

اسلاید ۱۸: Distributed ComputingMultiple computers are capable of operating independently.Tasks are completed locally on various computersNetworks enable the computers to exchange data and services but do not provide processing assistance

اسلاید ۱۹: Collaborative ComputingMultiple computers cooperating to perform a task A network that enables the computers to exchange data and servicesSoftware designed to take advantage of the collaborative environment

اسلاید ۲۰: Network Types ( 4 ) Network Models : Peer to Peer A group of PCs that basically operates as equals. Each PC is called a peer .Server-based Consists of a group of PCs ( called clients ) that request and receive network services form specialized computers called servers.

اسلاید ۲۱: Network Types ( 5 ) Transmission Methods : Circuit switching Dedicated path is created between two nodesPacket switching Message is broken into small packets

اسلاید ۲۲: Circuit SwitchingA circuit is established, an end-to-end connection must exist to transfer data The actual data transfer After data transmitted, connection is terminated

اسلاید ۲۳: Packet SwitchingMessage is broken into small packets.Allows interactive exchanges because of small bination of message and circuit switchingUses messages that are all the same length (called packets)Packets may be 128, 256, 512, or 1024 bits long

اسلاید ۲۴: Network Terminology (1)HostClientServerWorkstationPeerPC

اسلاید ۲۵: Network Terminology (2)Backbone A part of a network that all segments and servers connect. (Gigabit Ethernet, FDDI, Thicknet) Segment Any short section of the network that is connected to the backbone

اسلاید ۲۶: Network Terminology (3)Half-duplex A bi-directional communication but only one direction at a time, such as walkie-talkie Full-duplex Allows communications in both directions simultaneously.

اسلاید ۲۷: Network Terminology (4)Broadband Vs. Narrowband Bro