Cisco Ccna Certification Exam Tutorial The Osi Model S Physical Layer

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To pass your CCNA exam and earn this coveted certification, you’ve got to master the seven layers of the OSI model and what each layer does. For those of you taking the two-exam path, you can expect quite a few OSI model questions on the Intro exam. In this seven-part series, we’ll spend some time […]


Cisco Ccna Ccnp Certification Exam Troubleshooting Direct Serial Connections

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A prime topic of your CCNA and CCNP CIT exams will be connecting Cisco routers directly via their Serial interfaces, and while the configuration is straightforward, there are some vital details and show commands you must know in order to pass the exams and configure this successfully in production and home lab networks. Let’s take […]


Cisco Ccna Ccnp Home Lab Tutorial Cabling Your Access Server

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A Cisco home lab is an invaluable study tool when you’re preparing for CCNA and CCNP exam success. Once you’ve gotten a couple of routers and switches, you’ll quickly get tired of moving that blue console cable every time you want to configure a different device. The solution to this problem is purchasing and configuring […]


Cisco Certification The Most Important Study You Ll Ever Do Is

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All of us are familiar with the pyramids of Egypt. These magnificent structures have stood for thousands of years, withstanding extreme heat and other factors that would bring down an ordinary structure. When we look at these pyramids, we instinctively look toward the peak. We tend to do the same with the Cisco Learning Pyramid. […]


Ccnp Certification Bcmsn Exam Tutorial Server Load Balancing Slb

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When you’re working on your BCMSN exam on your way to CCNP certification, you’ll read at length about how Cisco routers and multilayer switches can work to provide router redundancy – but there’s another helpful service, Server Load Balancing, that does the same for servers. While HSRP, VRRP, and CLBP all represent multiple physical routers […]


Cisco Ccnp Bcmsn Exam Tutorial Configuring Cgmp On Routers Switches

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If a Layer Two switch doesn’t have the capabilities to run IGMP Snooping, it will be able to run CGMP – Cisco Group Membership Protocol. CGMP allows the multicast router to work with the Layer Two switch to eliminate unnecessary multicast forwarding. CGMP will be enabled on both the multicast router and the switch, but […]


Cisco Ccna Ccnp Home Lab Tutorial Buying And Configuring An Access Server

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A Cisco access server is generally the last item a CCNA or CCNP candidate has on their mind when they’re putting together a home lab. The thinking tends to be that since this router isn’t really doing anything in the production part of your practice lab, it’s not really important. Once you have more than […]


Cisco Ccnp Bsci Exam Tutorial Ospf Router Types

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When you’re preparing to pass the BSCI exam on the way to the coveted Cisco CCNP certification, you can be quickly overwhelmed by the sheer amount of BGP and OSPF knowledge you must demonstrate a mastery of. One set of details that some BSCI and CCNP candidates underestimate are the differences between the OSPF router […]


Passing Your Ccna And Ccnp Configuring And Troubleshooting Router On A Stick

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For CCNA and CCNP candidates, it’s hard not to laugh the first time you hear the phrase “router on a stick”. Let’s face it, that’s a pretty silly term. But as those who have passed the CCNA and CCNP exams know, this is a vital exam topic that you must know how to configure and […]


Ccna Ccnp Home Lab Tutorial The Vlan Dat File

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CCNA and CCNP candidates who have their own Cisco home labs often email me about an odd situation that occurs when they erase a switch’s configuration. Their startup configuration is gone, as they expect, but the VLAN and VTP information is still there! Sounds strange, doesn’t it? Let’s look at an example. On SW1, we […]


Cisco Ccnp Bsci Exam Tutorial The Passive Interface Command And Ospf

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To pass the BSCI exam and become a CCNP, you have to be aware of the proper use of passive interfaces. You learned about passive interfaces in your CCNA studies, but here we’ll review the basic concept and clear up one misconception regarding passive interfaces and OSPF. Configuring an interface as passive will still allow […]


Cisco Ccna Certification Exam Tutorial Port Based Authentication

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To pass your CCNA exam and earn this coveted certification, you must understand the details of port-based authentication. This knowledge has a great deal of value in production networks as well, since this authentication scheme is regularly implemented. Let’s take a look at this particular CCNA skill. Consider a situation where you have a server […]


Cisco Ccna Ccnp Certification Exam Tutorial Configuring Ppp Callback

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You may run into situations where a router in a remote location needs to dial in to a central router, but the toll charges are much higher if the remote router makes the call. This scenario is perfect for PPP Callback, where the callback client places a call to a callback server, authentication takes place, […]


Cisco Ccna Exam Tutorial Password Recovery Procedures

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It might happen on your CCNA exam, it might happen on your production network – but sooner or later, you’re going to have to perform password recovery on a Cisco router or switch. This involves manipulating the router’s configuration register, and that is enough to make some CCNA candidates and network administrators really nervous! It’s […]


Ccna Ccnp Home Lab Tutorial Assembling Your Cisco Home Lab

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A CCNA or CCNP candidate who wants to be totally prepared for their exams is going to put together a home lab to practice on. With used Cisco routers and switches more affordable and plentiful then ever before, there’s really no excuse to not have one! With the many different models available, there is some […]