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  2. Cisco certifications - Wikipedia

    en.wikipedia.org/wiki/Cisco_certifications

    To earn this certification one must pass the 210-260 IINS (Implementing Cisco IOS Network Security) exam, as well as hold a current CCNA certification. The CCNA-Security is a prerequisite to the CCNP Security certification. [22] It represents the required exam to earn the certification and for continuing the security certification path to the CCNP.

  3. CCNA - Wikipedia

    en.wikipedia.org/wiki/CCNA

    CCNA. CCNA (Cisco Certified Network Associate) is an entry-level information technology (IT) certification offered by Cisco Systems. CCNA certification is widely recognized in the IT industry as the foundational step for careers in IT positions and networking roles. [1][2] Cisco exams routinely change in response to evolving IT trends. [3]

  4. Spanning Tree Protocol - Wikipedia

    en.wikipedia.org/wiki/Spanning_Tree_Protocol

    The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. Spanning tree also allows a network design to include backup links providing fault tolerance if an active link fails.

  5. 7-foot alligator bites elderly woman while she was walking ...

    www.aol.com/news/7-foot-alligator-bites-elderly...

    01:20. An alligator bit an 84-year-old woman who was walking her dog in South Florida on Thursday, causing her “significant injuries,” authorities said. The incident occurred in North Fort ...

  6. Packet Tracer - Wikipedia

    en.wikipedia.org/wiki/Packet_Tracer

    Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface. Packet Tracer makes use of a drag and drop user ...

  7. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    Linux (/ ˈ l ɪ n ʊ k s /, LIN-uuks) [11] is a generic name for a family of open-source Unix-like operating systems based on the Linux kernel, [12] an operating system kernel first released on September 17, 1991, by Linus Torvalds.

  8. Cisco Certified Entry Networking Technician - Wikipedia

    en.wikipedia.org/wiki/Cisco_Certified_Entry...

    The Cisco Certified Entry Networking Technician (CCENT) [1] certification was the first stage of Cisco's certification system. The certification was retired on 24 February 2020. [2] The CCENT certification was an interim step to Associate level or directly with CCNA and CCDA certifications. While the CCENT covered basic networking knowledge; it ...

  9. 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 or obtain 80 continuing education credits.

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