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  2. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    Linux systems adhere to POSIX, SUS, LSB, ISO, and ANSI standards where possible, although to date only one Linux distribution has been POSIX.1 certified, Linux-FT. Free software projects, although developed through collaboration, are often produced independently of each other. The fact that the software licenses explicitly permit redistribution ...

  3. CCNA - Wikipedia

    en.wikipedia.org/wiki/CCNA

    CCNA ( Cisco Certified Network Associate) is an information technology (IT) certification from Cisco Systems. CCNA certification is an associate-level Cisco Career certification. [1] Cisco exams have changed several times in response to changing IT trends. [2] In 2020, Cisco announced an update to its certification program that "Consolidated ...

  4. Cisco certifications - Wikipedia

    en.wikipedia.org/wiki/Cisco_certifications

    Cisco Certifications are the list of the Certifications offered by Cisco Systems.There are four to five (path to network designers) levels of certification: Associate (CCNA/CCDA), Professional (CCNP/CCDP), Expert (CCIE/CCDE) and recently, Architect (CCAr: CCDE previous), as well as nine different paths for the specific technical field; Routing & Switching, Design, Industrial Network, Network ...

  5. Point-to-Point Protocol - Wikipedia

    en.wikipedia.org/wiki/Point-to-Point_Protocol

    In computer networking, Point-to-Point Protocol ( PPP) is a data link layer (layer 2) communication protocol between two routers directly without any host or any other networking in between. It can provide loop detection, authentication, transmission encryption, [1] and data compression . PPP is used over many types of physical networks ...

  6. CCIE Certification - Wikipedia

    en.wikipedia.org/wiki/CCIE_Certification

    The CCIE lab exam was first introduced in 1993 with a two-day test. As there was an overwhelming demand for CCIE certification, the waiting time for taking the lab exam was at least six months. In October 2001, Cisco updated the two-day lab exam to one day by removing some of the testing measures like diagramming, IP addressing, and ...

  7. Network management - Wikipedia

    en.wikipedia.org/wiki/Network_management

    Network management. Network management is the process of administering and managing computer networks. Services provided by this discipline include fault analysis, performance management, provisioning of networks and maintaining quality of service. Network management software is used by network administrators to help perform these functions.

  8. CCNP - Wikipedia

    en.wikipedia.org/wiki/CCNP

    The validity of CCNP Certification is 3 years. Renewal requires certification holders to register for and pass same or higher level Cisco recertification exam(s) every 3 years. Related certifications. Associate-level certification: CCNA; Expert-level Certification: CCIE; References