Title: CheatSheets for CCNA 200-125CCNARouting and Switching 200-125 Cheat Sheetsis intended tohelp you pass the CCNA exam, providing wide coverageof CCNA topics and a few scenario type questions toenable you to understand the concepts.TheCheat Sheets contains the study material in a concise andeasy to review format. Complementing the exam cramnotes is the time tested SimulationExams.comCCNApractice test software, complete with hundreds ofpractice questions with flash cards. We highlyrecommend that you go through the practice exams aswell for thorough coverage of exam topics.
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CCENT Certification All-In-One For Dummies Cheat SheetFromByThe CCENT certification is a new, fast-growing certification that tests your knowledge of basic Cisco device-management and networking concepts. It is a great stepping stone to the CCNA certification and other Cisco certification tracks.
The CCENT exam tests your knowledge of real-world networking concepts and Cisco features found on most networks today, and this Cheat Sheet gives you quick facts and code listings to remember on test day to help you answer questions found on the CCENT certification exam. OSI Model for the CCENT Certification ExamThe CCENT certification tests you heavily on the OSI model and the different protocols and devices that run at each layer of the OSI model. The following table reviews the OSI model by giving you a description of each layer and examples of protocols and devices that run at each layer. Cisco IOS Basics for the CCENT Certification ExamThe CCENT certification exam will test you on the basics of the Cisco Internetwork Operating System (IOS) and how to configure the IOS.
The following are some key points that summarize the IOS basics to remember for the CCENT certification exam:.Types of Memory: There are different types of memory on a Cisco device:.ROM: The Read-Only Memory (ROM) on a Cisco device is like the ROM on a computer in the sense that it stores the POST and the boot loader program. The boot loader program is responsible for locating the IOS.Flash: The flash memory is used to store the Cisco IOS.RAM: RAM is used to store things like the routing table on a router, or the MAC address table on a switch. It is also used to store the running-config. RAM is also known as volatile RAM, or VRAM.NVRAM: Non-volatile RAM (NVRAM) is used to store the startup-config, which is copied to the running-config on bootup after the IOS is loaded.The Boot Process: For the CCENT certification exam, you need to know the high-level steps that occur when a Cisco device starts up.