Cisco CCNA Certification - The Config Register and Password Recovery
You must be prepared to reload a router when it wants an enable password, because if you don't, and there's no one available who does, you'll need to perform a password recovery technique on the router - without erasing the current configuration. More ...
How to Select a Network Switch
The network switch is the most common network device with most network infrastructure and as such selection of new switches or upgrading is a key part of most network design projects. Wireless designs will have switches interfacing with access points. More ...
Accessing a Cisco IOS Device
There are several ways to access the Cisco device's CLI (Command-Line Interface). The most common methods are the console management port, using Telnet or SHH, or the AUX port. More ...
Cisco CCNA Certification - Becoming a Truly Valuable CCNA
The CCNA is an exciting beginning to your Cisco career, but just having the certification simply isn't enough. A recruiter or interviewer isn't going to be impressed just with the cert; you've got to have some real-world knowledge to back it up. More ...
Surviving The Technical Interview
Ah, the technical interview. Nothing like it. Not only does it cause anxiety, but it causes anxiety for several different reasons. Having been on both sides of the technical interview table, I'd like to share some tips for those being interviewed. In doing so, I'll share some of the more memorable interviews I've been involved in. More ...
Cisco CCNA Cerfication - Should You Take The One-Exam or Two-Exam Approach?
There are now two separate paths to the CCNA certification. Candidates may take a single exam, 640-811, or two exams, 640-821 and 640-811. What's the difference? The two-exam approach involves exams with different topics and therefore different preparation techniques. The approach I recommend to a CCNA candidate depends on their background. More ...
Cisco IOS (Internetworking Operating System)
Cisco IOS is a proprietary operating system that runs on most Cisco Systems routers and switches. It is vital to comprehend the different prompts you can use when configuring a router or switch. More ...
Cisco Certification - The Joy Of Hex
The decimal numbering system, concerns itself with units of ten read from read from right to left. Hex numbers are read much the same way, except the units here are units of 16. The number 15 in hex is read as having five units of one and one unit of sixteen. More ...
Router Simulator for Cisco Lab Scenarios
"A simulator can provide realistic Cisco router problem challenge scenarios. There are many free Cisco router simulators on the Web.This article reviews them and narrows it down to four applications. More ...
Cisco Certification - Building Your Own Home Lab
CCNAs and CCNA candidates hear it all the time: 'Get some hands-on experience'. There is no learning like hands-on learning. No simulator in the world is going to give you the experience you will get cabling and configuring your own routers. More ...
Cisco Certification - Taking Your First Certification Exam
Walking into a testing center for the first time can be a nerve-wracking experience. You've got enough on your mind just keeping all that new information straight without worrying about what the testing experience will be like. Let's take a look at what you should expect when taking your first Cisco certification exam. More ...
Configuring Internal Cisco Router Security
Network security is a hot topic today, and will only increase in importance in the months and years ahead. While most of the attention is paid to exterior threats, there are some steps you can take to prevent unwanted Cisco router access from within your organization. More ...
Wireless Network Components - Basics of Any Wireless Network
Any client computer, laptop or wireless device with a compatible wireless client adapter allows connectivity with an access point. The client adapter is a radio transmitter with firmware that supports any of 802.11a/b/g signaling. That is needed before the device can associate and authenticate with the access point. More ...
