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  2. CCNA - Wikipedia

    en.wikipedia.org/wiki/CCNA

    To achieve a CCNA certification, candidates must achieve a passing score on a proctored Cisco exam No. 200-301. [6] After completion of the exam, candidates receive a score report along with a score breakdown by exam section and the score for the given exam.

  3. Cisco certifications - Wikipedia

    en.wikipedia.org/wiki/Cisco_certifications

    This certification required the ICND1 100-105 and ICND2 200-105 exams. Pearson VUE test centers conduct these exams. [8] All CCNA-certified individuals specialize by technology. Previously, specialized tracks required passing and maintaining a CCNA certification, but with the expiration of the 640 series tests this is no longer the case.

  4. List of IP protocol numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_IP_protocol_numbers

    This is a list of the IP protocol numbers found in the field Protocol of the IPv4 header and the Next Header field of the IPv6 header.It is an identifier for the encapsulated protocol and determines the layout of the data that immediately follows the header.

  5. 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.

  6. Virtual Router Redundancy Protocol - Wikipedia

    en.wikipedia.org/wiki/Virtual_Router_Redundancy...

    The Virtual Router Redundancy Protocol (VRRP) is a computer networking protocol that provides for automatic assignment of available Internet Protocol (IP) routers to participating hosts.

  7. Computer security - Wikipedia

    en.wikipedia.org/wiki/Computer_security

    An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information technology (IT) security) is the protection of computer software, systems and networks from threats that can lead to unauthorized information disclosure, theft or damage to hardware, software, or data ...

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