Аннотация

I wrote the first edition of Cisco CCNA Simplified while working at Cisco TAC. My manager had just informed us that our entire department was being made redundant. All of our jobs were being outsourced to Manila in the Philippines. We were thanked for our hard work and asked to keep it up until our last day which, for some, would be in the next month.
In a panic, I contacted a company I’d attended for some PC assembly training a few years earlier. I offered to run a Cisco course for the owner if he could fill it from his list of former students, and we could split the profits. Within the hour, he called back and accepted the offer. By the next week, I had a date to teach eight students the Cisco CCNA syllabus.
I spent the next few weeks writing some study notes for the students to accompany the course. At that time in 2002, there was only the Cisco study guide and one from Sybex. Neither had any labs included, which shocked me. Even though the CCNA exam was theory only, surely students would want to get at least some hands-on time with routers and switches.
I had a few advantages over the other publishers. I had started from the bottom, I was still working on live networks, and I was regularly teaching the material to students. I had feedback every day from people telling me what was working, what needed further explanation, and where more (or less) labs were required. I also invented my own easy subnetting method to help students answer any subnetting question within around 30 seconds (it’s in this book also).
I eventually published the book and, to my amazement, it became an Amazon best seller. All of a sudden I was receiving messages from people all over the world from all walks of life who were using my book to pass the exam, which led to networking jobs in large corporations and even the government.
For this reason, I’ve updated this study guide every time Cisco updated their exam, which is every three years, resulting in this latest version.
The current CCNA Routing and Switching exam represents some of the biggest changes in many years. Cisco has reintroduced many of the networking basics they removed, such as topology types, but also added many topics that were previously at the CCNP level, such as BGP, GRE, QoS, DHCP snooping, and more. They have also added Software Defined Networking, cloud computing, and virtualization.
The network engineer’s job is rapidly changing and this is reflected in the Cisco CCNA syllabus. It’s important that you review the syllabus from Cisco’s website before you take the actual exam because they reserve the right to make changes. Bear in mind that the syllabus is a guideline so they also reserve the right to ask you questions about topics not included in the syllabus. I state this because I get the occasional angry e-mail from students stating that this happened to them and blaming me.
We’ve scrapped around 15% of the material from the previous version of Cisco CCNA Simplified and added around 30%, so your workload has increased as has the level of difficulty. The mini-labs were really popular so you will find a lot more in this version. If you need anything else or want more topics or labs, then visit the support page at https://www.howtonetwork.com/ccnasimplified and hit me up. Please bear in mind that it has to be relevant to the exam though.
The URL above has a ton of exam support material, so please use it BEFORE you attempt the exam or you will surely fail.