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Information
Cisco CCNP / BCMSN Exam Tutorial: Switches, QoS, And Cisco's Networking Model
QoS is a big topic on your BCMSN and CCNP exams, and for good reason. As more and more traffic flows through today's networks, accurately applying QoS to both your routers and switches becomes more important.Note the phrase "accurately applying".Read more…What You Must Do to Get a MCSE Certification
Being an MCSE, or Microsoft Certified Systems Engineer, can bring in some good money and give you a greater range of jobs to be obtained. To obtain an MCSE certification, you need to be able to pass six core curriculum exams, an elected exam, and a design course exam. While most will go to university for an MCSE certification, they can be obtained through online courses and by studying online guides.Read more…Cisco CCNA / CCNP Home Lab Tutorial: The 2503 Router
I know from experience that part of the excitement and anxiety of putting together your own CCNA / CCNP home lab is deciding what to buy! While you can make a workable home lab out of almost any combination of Cisco routers and switches, some routers are better suited for home lab work than others because they can fill multiple roles.When you buy CCNA or CCNP "lab kits" - bundles of routers and switches - you can get a little confused about whether you're getting a good deal.Read more…Cisco CCNA Certification Exam Tutorial: ISDN Details You Must Know
CCNA exam success depends partially on knowing the details of ISDN, and there are plenty of them! To help you review for your CCNA exam, here are a few ISDN details that you must know on exam day. (They help in the real world, too – and there are still plenty of ISDN networks out there!Read more…Cisco CCNP / BCMSN Exam Tutorial: Configuring CGMP On Routers & Switches
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 the router's going to do all the work.Read more…Cisco CCNP / BCMSN Exam Tutorial: Multicasting And The RPF Check
Multicasting is a vital topic on your BCMSN, CCNP, and CCIE exams, and it can also be very confusing when you first start studying it. Multicasting uses concepts that are unlike anything you've run into in your routing protocol studies, and that can throw you at first. I speak from experience that multicasting is like any other Cisco technology - learn the basics, master the fundamentals, and then build your skills on that foundation.Read more…Cisco CCNA Certification Exam Tutorial: Variance And Unequal Cost Load Balancing
To pass the CCNA exam, you've got to know how to work with IGRP and EIGRP unequal-cost load balancing. You may not see much IGRP in production networks anymore, but you'll see a lot of EIGRP, and part of fine-tuning your EIGRP network is making sure that all paths are in use while allowing for varying bandwidth rates.Using the variance command is the easy part - it's getting the metric that's the hard part with IGRP.Read more…The Brief History of Cisco Certifications
Even young people can remember the old days when network administrators were more often associated for being the person sitting next to a computer system rather than for specific abilities of proficiency. In those early days, CCNA Certification or CCNA training were concepts totally ignored by most small-to-medium businesses, and they never asked a network administrator to apply for a CCNA course.In fact during long time, many office managers just learned a few computer tricks to qualify as network administrator because a Cisco Certified Network Associate (CCNA) was only known as inter networking became more complex.Read more…The History of Microsoft Certifications - Now and Then
When Microsoft announced recently that the new generation of Microsoft Certifications had just arrived, they inevitably made one stop for a moment remembering how all started and evolved throughout history with over 10 years of certifications to date.Ten seems to be a determined number in the new generation of certification provided by the leading Internet company than the last year, also announced the new MCA, the Microsoft training practical exam, which is graded by a board of examiners.As no written exam, the Microsoft Certified Architect (MCA) requires at least 10 years experience in IT, and 3 years of practical experience as a network architect to apply.Read more…Cisco CCNA Certification Exam Tutorial: RIP Details You Must Know
RIP isn't exactly the most complex routing protocol on the CCNA exam, but that makes it easy to overlook some of the important details you must keep in mind in order to pass the exam! To help you review for the exam, here are just a few of those details!RIP’s default behavior is to send version 1 updates, but to accept both version 1 and 2 routing updates.Read more…Cisco CCNP / BSCI Exam Tutorial: OSPF Route Redistribution Review
OSPF route redistribution is an important topic on the BSCI exam, and it's a topic full of details and defaults that you need to know for the exam room and the job. To help you pass the BSCI exam, here's a quick review of some of the OSPF route redistribution basics.To see if a router is an ABR or ASBR, run show ip ospf.Read more…Cisco CCNP / BCMSN Exam Tutorial: Multicasting And Reserved Addresses
Ever since you picked up your first CCNA book, you've heard about multicasting, gotten a fair idea of what it is, and you've memorized a couple of reserved multicasting addresses. Now as you prepare to pass the BCMSN exam and become a CCNP, you've got to take that knowledge to the next level and gain a true understanding of multicasting. Those of you with an eye on the CCIE will truly have to become multicasting experts!Read more…Cisco CCNA Exam Tutorial: Split Horizon And Hub-And-Spoke Networks
For CCNA exam success, you had better know what split horizon is, how to turn it off, and when to turn it off. Knowing when to turn split horizon off is also important in production networks, because it can cause a hub-and-spoke network to have incomplete routing tables on the spokes.Split horizon exists for a very good reason - routing loop prevention.Read more…Cisco CCNP / BSCI Exam Tutorial: The Passive Interface Command And OSPF
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 the interface to receive routing updates, but the interface will no longer transmit them.Read more…Cisco CCNP / BCMSN Exam Tutorial: The Core Layer Of Cisco's Three-Layer Model
In this section, you're going to be reintroduced to a networking model you first saw in your CCNA studies. No, it's not the OSI model or the TCP/IP model - it's the Cisco Three-Layer Hierarchical Model. Let's face it, just about all you had to do for the CCNA was memorize the three layers and the order they were found in that model, but the stakes are raised here in your CCNP studies.Read more…Cisco CCNA Certification Exam Tutorial: The OSPF RID
OSPF is a major topic on your CCNA exam, as well it should be. OSPF is a widely-used WAN protocol, and you need to learn the fundamentals before moving on to more complicated configurations. One such detail is the OSPF Router ID, or RID.Read more…Cisco CCNP Certification / BSCI Exam Tutorial: ISIS Hellos And Adjacencies
In my last ISIS tutorial, I mentioned that while ISIS and OSPF are both link state protocols, their actual operation differs greatly. To pass the BSCI exam and earn your CCNP, you'll need to know these differences! Today, we'll take a look at ISIS Hello types and the adjacency types that form through the use of these Hellos.Read more…Cisco CCNP Certification / BCMSN Exam Tutorial: Uplinkfast
You remember from your CCNA studies that when a port goes through the transition from blocking to forwarding, you're looking at a 50-second delay before that port can actually begin forwarding frames. Configuring a port with PortFast is one way to get around that, but again, you can only use it when a single host device is found off the port. What if the device connected to a port is another switch?Read more…Cisco CCNP / BSCI Exam Tutorial: Using OSPF's "Summary-Address" Command
BSCI exam success, not to mention earning your CCNP, can come down to your OSPF route summarization skills. There are a few different commands and situations you need to be ready for, and one of these situations is the proper use of the "summary-address" command.The summary-address command should be used on an ASBR in order to summarize routes that are being injected into the OSPF domain via redistribution.Read more…Cisco CCNA Exam Tutorial: IGRP And Equal Cost Load Balancing
To pass the CCNA exam, you've got to know the role of the bandwidth command with IGRP and EIGRP and when to use it. In this tutorial, we'll configure IGRP over a frame relay hub-and-spoke network using the following networks:R1 (the hub), R2, and R3 are running IGRP over the 172.12.Read more…
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