Tag Archives: CCNA


Welcome to the ICND1 (CCENT) 640-822 guiding website. You can not be the good practitioner of the networking while you couldn’t be a good student and to become a good student you need to clear your thought and concepts about the CCENT. CCENT (Cisco Certified Entry Networking Technician) is the ...

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CCNA Study Notes for Exam 640-801

Cisco Hierarchical Model: For more information about this, please read our separate tutorial titled “The Cisco Hierarchical Model”. OSI Model: The OSI model is a layered model and a conceptual standard used for defining standards to promote multi-vendor integration as well as maintain constant interfaces and isolate changes of implementation ...

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