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  2. CCNA - Wikipedia

    en.wikipedia.org/wiki/CCNA

    Cisco and its learning partners offer a variety of different training methods, including virtual classroom style and book-based learning. Many free alternatives are also available, such as community sourced practice exams and YouTube video lectures.

  3. Cisco certifications - Wikipedia

    en.wikipedia.org/wiki/Cisco_certifications

    The CCNA-Security is a prerequisite to the CCNP Security certification. It represents the required exam to earn the certification and for continuing the security certification path to the CCNP. Note: The CCNA Security courseware holds compliance with the NSA and CNSS training standard of CNSS 4011.

  4. CCIE Certification - Wikipedia

    en.wikipedia.org/wiki/CCIE_Certification

    CCIE Certification. The Cisco Certified Internetwork Expert, or CCIE, is a technical certification offered by Cisco Systems. The Cisco Certified Internetwork Expert (CCIE) and Cisco Certified Design Expert (CCDE) certifications were established to assist the industry in distinguishing the top echelon of internetworking experts worldwide and to ...

  5. 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.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    A Linux-based system is a modular Unix-like operating system, deriving much of its basic design from principles established in Unix during the 1970s and 1980s. Such a system uses a monolithic kernel, the Linux kernel, which handles process control, networking, access to the peripherals, and file systems.

  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

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  10. Offensive Security Certified Professional - Wikipedia

    en.wikipedia.org/wiki/Offensive_Security...

    Offensive Security Certified Professional ( OSCP, also known as OffSec Certified Professional) is an ethical hacking certification offered by Offensive Security (or OffSec) that teaches penetration testing methodologies and the use of the tools included with the Kali Linux distribution (successor of BackTrack ). [1]

  11. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    In the United States, academic grading commonly takes on the form of five, six or seven letter grades. Traditionally, the grades are A+, A, A−, B+, B, B−, C+, C, C−, D+, D, D− and F, with A+ being the highest and F being lowest. In some cases, grades can also be numerical. Numeric-to-letter-grade conversions generally vary from system ...