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Cisco Networking
OSI
Question | Answer |
---|---|
Responsible for initiating or services the request. SMTP, DNS, HTTP, and Telnet | 7. Application |
Formats the information so that it is understood by the receiving system. Compression and encryption depending on the implementation | 6. Presentation |
Responsible for establishing, managing, and terminating the session. NetBIOS | 5. Session |
Breaks information into segments and is responsible for connection and connectionless communication. TCP and UDP | 4. Transport |
Responsible for logical addressing and routing IP, ICMP, ARP, RIP, IGRP, and routers | 3. Network |
Responsible for physical addressing, error correction, and preparing the information for the media MAC address, CSMA/CD, switches, and bridges | 2. Data Link |
Deals with the electrical signal. Cables, connectors, hubs, and repeaters | 1. Physical |