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 ...
Introduction to Cisco IOS (Cisco Internetwork Operating System)
The Cisco Internetwork Operating System (IOS) is a collection of network operating systems used on Cisco network devices that to provide the network technician with an interface where they can enter commands to configure the device to perform various networking functions. 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 ...
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 ...
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 ...
Network Basics: Assigning IPv6 Addresses
If you're working in a Cisco network and assigning addresses to your IPv6 network cards, you need to know that just like IPv4 addresses there is a network portion of the address and a host portion of the address. More ...
Cisco Routers for the Desperate: Router and Switch Management, the Easy Way
This book is MUST have for when you need to make a quick change on a cisco router and don't have time to review. This book walks you through from logging in to making your router changes right from the beginning of the book. 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 ...
Cisco Certification - Five Things To Do DURING Your CCNA Exam
There are plenty of articles out there about how to prepare for the CCNA exam. However, there are also things you can do to increase your chances of success on exam day during the most important part of the entire process - the time that you're actually taking the test. 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 ...
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 ...
Cisco Certification - Suggested Toplogies For Your Home CCNA/CCNP Lab
When you make the decision to put your own home lab together for your CCNA and CCNP studies (a very wise decision, if I may say so!), the hardest part is figuring out how to spend your budget. Do you spend it all on the routers and go with a cheaper switch? Do you buy a frame relay switch? Do you buy an access server? More ...
Cisco Certification - The Definitive Guide To ARP, IARP, RARP, and Proxy ARP
The basic ARP operation is simple enough. We concentrate on IP addressing a great deal in our studies and our jobs, but it's not enough to have a destination IP address in order to send data; the transmitting device must have a destination MAC address as well. More ...
