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7 Cards in this Set
- Front
- Back
LAYER 7 |
"Application Layer " or "End User Layer" Description - End user processes, Communication and service established, User variable inputs, and Services Protocols - FTP, HTTP, IMAP4, NNTP, POP3, SMTP, SNMP, SSH, TELNET, NTP Examples - Network Management, Directory Services, Remote File Access, Resource Sharing |
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LAYER 6 |
"Presentation Layer "or"Syntax Layer" Description - Translates, encrypts and compresses data Protocols - JPEG, GIF, MPEG, ASCII Examples - Data Encryption, Data Compression, Character Code translation Device- Firewall; sending POS information between GUI and Session; Account log in |
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LAYER 5 |
"Session Layer " or " Connection Management Between Applications" Description - Establishes, manages and terminates connections between applications Protocols - NetBios, SAP,PAP, PPTP, RTP, SOCKS, H.245, SQL Examples - Session establishment, maintenance, and termination Session support, perform security, name recognition, logging etc |
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LAYER 4 |
"Transport Layer" or (Data Transfer Method) Description - provides transparent transfer of data between hosts, and is responsible for end-to-end error recovery and flow. Protocols - TCP, UDP, SCTP, DCCP, SPX, iSCSI Examples - Message Segmentation, Message Traffic, Message Acknowledgement, Session Multiplexing" Data Encapsulation: Segments |
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LAYER 3 |
"Network Layer"or "Packets, Routing, Switching PVC" Description - Routing and forwarding are functions of this layer, as well as addressing, inter-networking, error handling, congestion control and packet sequencing Protocols - Internet Protocol V4 and V6, IPX, Apple Talk, NAT, VRRP Examples - Routing, Subnet Traffic, Frame Fragmentation, Logical-Physical Address Mapping, Subnet Usage" Data Encapsulation: Packets |
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LAYER 2 |
"Data-Link Layer " or " Physical Signal Flow Control" Description - physical layer, flow control and frame synchronization. The data link layer is divided into two sub layers. MAC/LLC Protocols - ATM, Ethernet, Token ring, Frame Relay, L2TP, ISDN, LACP; Examples - Establishment and logical link nodes, Frame Traffic Control, Sequencing, Error Acknowledgement, Media Access Control " Data Encapsulation: Frames |
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LAYER 1 |
"Physical Layer" or "Physical Structure / Signaling" Description - Electrical, Light or Radio impulses to Digital Signal; the electrical or mechanical level of networking. Cables; Physical aspects. Protocols - Ethernet, FDDI, B8ZS, V.35, V.24, RJ45, DSL, ISDN Examples - Data Encoding, Base band vs Broadband, Physical Medium transmission Bits & Volts" Data Encapsulation: Bits |
