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Cisco CCNA certification training includes troubleshooting your own work and that of others. The best CCNA training you can do is indeed troubleshooting your own Cisco router and s...

The Computing Technology Industry Association (CompTIA) is a trading group offering A+ certification to validate the skills of students that want to apply as computer professionals...

Whether you're preparing for the CCNA certification exam or not, you must be prepared for the following question: "Hey, I reloaded this router and it wants an enable password. D...

In the first part of this CompTIA Network+ certification exam tutorial, we looked at the different types of viruses and other invaders trying to get into our network, and how antiv...

Passing the Network+ and CCNA exams demands that you know quite a few port numbers, but they're important to know when working with real-world networks as well. Before we discuss w...

To pass your Network+ certification exam, you must know the differences between hubs, repeaters, bridges, and switches. The differences are straightforward for the most part, so le...

New IT Certification exams, including those from Microsoft, are focusing less on knowledge-based questions and more on measuring skills that require hands-on experience with networ...

As you probably know by now, Cisco's making some sweeping changes in their Cisco Certified Network Professional (CCNP) program. Two longtime exams are being retired at the end of t...

In the previous Network+ exam tutorial, we talked about how collisions occur when data sent by two hosts on a shared Ethernet segment transmit data at the exact same time. Collisio...

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 net...

Part of studying for CCNA exam success is keeping all these new commands straight in your head! And let's face it, there are a lot of commands you need to know in order to pass the...

Not only is your CCNA exam going to have questions on VLAN trunking protocol, almost any network that has more than one VLAN is going to have VTP running. Whether you're planning o...

To pass the CCNA exam, you have to be able to write and troubleshoot access lists. As you climb the ladder toward the CCNP and CCIE, you'll see more and more uses for ACLs. Therefo...

The most common method of configuring ISDN is with dialer maps, but dial information can also be configured on a logical interface. To pass the CCNA exam, you must know how to conf...

Passing the CCNA is tough, and one of the toughest parts is keeping all the acronyms straight! Frame Relay has plenty of those, and today we're going to examine what DLCIs do and h...

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 k...

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 lo...

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 ex...

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 confi...

DNS behaviors of a Cisco router are important topics for both the CCNA exam and real-world production networks, and you probably didn't know there were so many DNS details before y...

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 pa...

The format and difficulty of computer certification exams is constantly changing. When I took my first certification exam (Novell NetWare 3.1x CNA, January 1997), there was no such...

Cisco Certification: Taking Your First Certification Exam You?ve studied hard you?ve practiced your configurations you?ve used your flash cards over and over again and finally, ...

Your CCNA certification exam is likely going to contain questions about Telnet, an application-level protocol that allows remote communication between two networking devices. Wit...

Passing the CompTIA Network+ certification exam and going on to become a subnetting expert is mastering the basics of IP addressing, and that means knowing the different classes,...

Whether you?re preparing to pass the Network+ or Cisco CCNA certification exam or not, you must not underestimate the importance of antivirus programs and virus definition update...

In the first part of this CompTIA Network+ certification exam tutorial, we looked at the different types of viruses and other invaders trying to get into our network, and how ant...

As a CompTIA Network+ exam candidate, you?re probably familiar with DHCP ? but just in case, we?re going to review DHCP basics here and then go into a discussion of DHCP Relay Ag...

Part of passing the Network+ exam and being an outstanding network administrator is being prepared for disaster. Sometimes that's a disaster on a relatively small scale, such as ...

As you probably know by now, Cisco's making some sweeping changes in their Cisco Certified Network Professional (CCNP) program. Two longtime exams are being retired at the end of...

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...

Whether you're just starting to think about passing the CCNA or CCNP exams, or you've been on the certification track for a while, you've got to have a plan for success. If you wa...

Preparing IT certification exams is a significant undertaking whether you're just out of college or have been in IT field for years. IT professionals are continuously demanded to ...