network +; fifth edition chapter 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What does ISO, stand for? | International Organization for Standardization
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| What is ISO, most known for? | ISO Model
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| What does OSI in the OSI Model stand for stand for, and what does it represent? | OSI is short for OPEN SYSTEMS INTERCONNECTION. It represents the 7 layers of network communication.
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| What are the 7 layers of the OSI Model? | Bottom to top, bottom layer being #1 Physical, #2 Data Link, #3 Network, #4 Transport, #5 Session, #6 Presentation, and #7 application.
Tip to remember: All - People - Should - Trade - Nude - Data - Pics (top to bottom)
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| What is the data encapsulation process? | Data - Segment - Packets - Frames - Bits
Process of Information sent from node across medium.
HINT: Don't smoke pot for breakfast
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| What are PDUs (protocol data units)? | Are discrete amounts of data
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| Layer 7 Application Layer | Interface between the user and computer. Provides services that directly support user applications. IE E-mail, File Transfer, Terminal Emulation, Database Access.
Common Corresponding Protocols= SNMP, FTP, TELNET, WWW, HTTP, SMB, NCP, TCP, TFTP, NFS,
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| Layer 6 Presentation Layer | Translation of data into understandable format for transmission. Encodes and Decodes data.
Common Corresponding Protocols= JPEG, MIDI, MPEG, ALL MOVIE, MUSIC, PICS, FORMATS, NCP
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| Layer 5 Session | Responsible for opening, closing, and using session. Allows communication between 2 or more nodes on network. Provides synchronization between communicating nodes.
Common Protocols= File System(NFS), SQL, RPC
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| Layer 4 Transport Layer | Responsible for packet handling. Ensures error free delivery. Repacks and divides messages into smaller packets(fragments and reassembles data. Handles error handling.
Protocols= TCP, UDP, SPX, NETBEUI
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| Layer 3 Network Layer | Logical addressing. Routing of message packets between host(IP\IPX)
HARDWARE: Routers, Brouters
Protocols= IP, IPX, RIP, ICMP, ARP, RARP, OSPF, EGP, IGMP, NETBEUI, DLC, DecNET
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| Layer 2 Data Link Layer | Provides flow of data over a single link from 1 device to another. Packets placed into frames at this layer. Identifies specific computer on network. Error Detection, Mac address are resolved. Data frames are sent between layers.
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| Data Link layer | has 2 sub layers, LLC & MAC. Logical Link Control and Media Access control.
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| Layer 1 Physical | bits on the wire
Hardware= Hubs, Repeaters, Amplifiers, Transceivers, multiplexers, recevivers, transmitters, connectors, cables, switches
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| 802.3 | Ethernet LAN= All forms of ethernet media and interfaces.
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| 802.5 | Token Ring LAN= All forms of token ring media and interfaces
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| 802.11 | Wireless Network= Standards for wireless networking for many different frequencies and user techniques
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| 802.15 | Wireless personal area networks= The coexistence of wireless personal area networks with other wireless devices in unlicensed frequency bands
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| 802.16 | broadband wireless metropolitan area network= the atmospheric interface and related functions associated with broadband wireless connectivity aka WiMax
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