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OSI Model and Protocols
OSI Model
17
Computer Science
Undergraduate 2
06/23/2009

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Term
Provides interface between software applications and netowrk for interpreting application requests and requirements.
Definition
Layer 7 Application Level
Term
Allows hosts and applications to use a common language; performs data formatting, encryption, and compression.
Definition
Layer 6 Presentation
Term
Establishes, maintains, and terminates user connections.
Definition
Layer 5 Session
Term
Ensures accurate delivery of data through flow control, segmentation and reassembly, error correction, and acknowledgement.
Definition
Layer 4 Transport
Term
Establishes network connections; translates network addresses into their physical counterparts and determines routing.
Definition
Layer 3 Network
Term
Packages data in frams appropriate to network transmission method.
Definition
Layer 2 Data Link
Term
Manages signaling to and from physical network connections.
Definition
Layer 1 Physical
Term
BOOTP, DHCP, DNS, FTP, HTTP, HTTPS, IMAP4, POP3, NSLOOKUP, NTP, SFTP, SMTP, SNMP, TELNET, TFTP
Definition
Application Layer
Term
TCP, UDP
Definition
Transport Layer Protocols
Term
ARP, ICMP, IGMP, IP, IPSec, RARP
Definition
Network Layer Protocols
Term
L2TP, PPP, PPTP, SLIP
Definition
Data Link Layer Protocols
Term
IEEE 802.3 Protocol
Definition
Ethernet
Term
IEEE 802.5
Definition
Token Ring Protocol
Term
IEEE 802.11
Definition
Wireless Protocol
Term
At which layer of the OSI model does encryption take place?
Definition
Presentation
Term
Traffic flow is what layer of the OSI Model?
Definition
Session Layer
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