Cisco CCNA exam Making Cisco Certification (CCNA) Easy! #1 Resource For Cisco Certification Exam Study
 CCNA [Home]
 Router Simulator
 Practice Exams
 Online Training
 Cram Sheets
 Customer Testimonials
 Study Center
   Study Guide
   Interactive Tutorials
   Practice Questions
   Networking Tools
 Contact Us
 Site Map
Download FREE trial version
Buy the CCNA Router Simulator

Buy Now

Pass Your CCNA Exam The First Time!

CCNA Test Pass Guarantee


Glossary: CCNA & General Networking Terms 


A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

See: Online Computer Library Catalog
An octet is 8 bits. This term is used in networking, rather than byte, because some systems have bytes that are not 8 bits long. [Source: RFC1392]
Open DataBase Connectivity. An application programming interface to allow programs to use databases, using Structured Query Language as its database access language.
Workshop for Implementors of OSI. Frequently called NIST OIW or the NIST Workshop, this is the North American regional forum at which OSI implementation agreements are decided. It is equivalent to EWOS in Europe and AOW in the Pacific. [Source: RFC1208]
Open Network Computing. A distributed applications architecture promoted and controlled by a consortium led by Sun Microsystems. [Source: RFC1208]
Online Computer Library Catalog
OCLC is a nonprofit membership organization offering computer- based services to libraries, educational organizations, and their users. The OCLC library information network connects more than 10,000 libraries worldwide. Libraries use the OCLC System for cataloging, interlibrary loan, collection development, bibliographic verification, and reference searching. [Source: OCLC]
Open Shortest-Path First (OSPF)
A link state, as opposed to distance vector, routing protocol. It is an Internet standard IGP defined in RFC 1583 and RFC 1793. The multicast version, MOSPF, is defined in RFC 1584. See also: Interior Gateway Protocol, Routing Information Protocol. [Source: RFC1392]
Open Systems Interconnection (OSI)
A suite of protocols, designed by ISO committees, to be the international standard computer network architecture. See also: International Organization for Standardization. [Source: RFC1392]
See: Open Systems Interconnection
OSI Network Address
The address, consisting of up to 20 octets, used to locate an OSI Transport entity. The address is formatted into an Initial Domain Part which is standardized for each of several addressing domains, and a Domain Specific Part which is the responsibility of the addressing authority for that domain. [Source: RFC1208]
OSI Presentation Address
The address used to locate an OSI Application entity. It consists of an OSI Network Address and up to three selectors, one each for use by the Transport, Session, and Presentation entities. [Source: RFC1208]
OSI Reference Model
A seven-layer structure designed to describe computer network architectures and the way that data passes through them. This model was developed by the ISO in 1978 to clearly define the interfaces in multivendor networks, and to provide users of those networks with conceptual guidelines in the construction of such networks. See also: International Organization for Standardization. [Source: NNSC]
See: Open Shortest-Path First


Return to TOP