A Cisco Certified Network Associate understands and represents a foundation in and apprentice knowledge of networking. A CCNA certified professionals can install, configure, and operate LAN, WAN, and dial access services for small networks (100 nodes or fewer), including but not limited to use of these protocols: IP, IGRP, Serial, Frame Relay, IP RIP, VLANs, RIP, Ethernet, Access Lists. There are two routes one can go to obtain a CCNA certification.
CCNA Certification is necessary to validate to employers that the holder has demonstrated an understanding of the foundation of networking using Cisco devices; basic routing and switching, TCP/IP, the Open Systems Interconnect model, WANs, and more. In preparing for the CCNA exam, its important that candidates are adequately prepared for the environment they will be testing in and make the most of their study time and subsequent attempts at the exam.
CCNA and CCNP candidates are well-versed in Spanning-Tree Protocol, and one of the great things about STP is that it works well with little or no additional configuration. There is one situation where STP works against us just a bit while it prevents switching loops, and that is the situation where two switches have multiple physical connections.
Telnet is a simple yet powerful code that allows you to connect to a remote Cisco router or switch, and then configure it as though you we are right at the console. Telnet is also one of those features that seems so very simple, until you get asked a half dozen questions about it on your CCNA exams. As with all topics, its the details you know about Telnet that will help you pass the Intro and ICND exams.
You may take the Cisco 640-801 CCNA certification exam OR you may take the combination of the Cisco 640-821 INTRO and Cisco 640-811 ICND exam. CCNA certifications are valid for 3 years and to recertify, you must take and pass a current CCNA certification exam or ICND exam or any 642 professional level or Cisco Qualified Specialist exam or pass a CCIE written exam.
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