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2. 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 ...

3. Cisco Certified Entry Networking Technician - Wikipedia

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

   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 did not get involved with the more intricate technical aspects of the Cisco routing and switching and network design. The ...

4. CCNA - Wikipedia

   en.wikipedia.org/wiki/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]

5. CCIE Certification - Wikipedia

   en.wikipedia.org/wiki/CCIE_Certification

   An example CCIE ceramic plaque. 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 assess expert-level infrastructure ...

6. CCNP - Wikipedia

   en.wikipedia.org/wiki/CCNP

   A Cisco Certified Network Professional (CCNP) is a person in the IT industry who has achieved the professional level of Cisco Career Certification. [ 1 ] Professional certifications

7. List of computer security certifications - Wikipedia

   en.wikipedia.org/wiki/List_of_computer_security...

   Governmental (or quasi-governmental) licenses, certifications, and credentials Quality and acceptance vary worldwide for IT security credentials, from well-known and high-quality examples like a master's degree in the field from an accredited school, CISSP, and Microsoft certification, to a controversial list of many dozens of lesser-known ...

8. Clos network - Wikipedia

   en.wikipedia.org/wiki/Clos_network

   The probability that the path connecting an ingress switch to an egress switch via a particular middle stage switch is free is the probability that both links are free, (1−p) 2. Hence the probability of it being unavailable is 1−(1−p) 2 = 2p−p 2. The probability of blocking, or the probability that no such path is free, is then [1−(1 ...

9. Enhanced Interior Gateway Routing Protocol - Wikipedia

   en.wikipedia.org/wiki/Enhanced_Interior_Gateway...

   Each path with a metric that is smaller than the result is used in load balancing. [14] With the functionality of the Unequal Path Cost Load Balancing on EIGRP, OSPF protocol is unable to design the network by Unequal Path Cost Load Balancing. Regarding the Unequal Path Cost Load Balancing function on industry usage, the network design can be ...