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Certification Zone has helped thousands pass Cisco's® CCNA™, CCNP™, and CCIE™ certification exams
"Absolutely the best !! I was drowning in the ocean of the networking information you need to know for the exam. The Zone has created a navigation map and took me through the stormy CCNA ocean. [It's] so well organized and concise !! How did you do it guys ?!?!"
Anna Grichina
AMP Services Limited
"I just wanted to take a moment to say thank you! Certification Zone provides the perfect tools for passing the written portion of the CCIE exam. I subscribed to your one year subscription because I quickly saw the value of taking my time reading through all the information you had to offer. I was able to create and follow my own study schedule using the many white papers, chapter questions, and practice exams to thoroughly cover all the required objectives. BECAUSE OF THIS, I WAS ABLE TO SAVE HUNDREDS OF DOLLARS AND ADDED STRESS BY PASSING THE CCIE WRITTEN ON MY FIRST TRY!!!! Although I have told my peers about your website in the past, none of them listened until now! Every one of them wrote your web address down after they found out how well I did!"
Donald Ericksen
Network Engineer
Arrow Electronics
"Certification Zone's Tutorials are absolutely the BEST self-study materials I have seen. They somehow manage to condense key concepts into a few pages of excellently written material that is easy to understand. You definitely have some of the best the industry has to offer writing for you. I also used the Practice Exams, which I thought were tougher than the real exam. I feel that is the way it should be. I love [Certification Zone]. I have multiple certifications, and [the Zone] is the best study site I have ever used. The mix of Tutorials, study questions, and hands-on labs is in my opinion the best way to learn any subject. I have recommended [the Zone] to many friends, and I have recommended [the Zone] to my employer as a self-study site for new engineers. Keep up the good work!"
Kevin Marley
Axicom, Plainfield, IL
"I train folks for very basic Cisco stuff and I refer all to your site for further advanced training. We do not do Cisco cert training so your site is the best resource I know of and I have been to many sites if not all."
Ozzie Sutcliffe
Brooklyn, NY
"The best and most professional easy-to-follow information on Cisco subjects anywhere. "
Joseph Mifsud
Castle Hill, Australia
"Certification Zone is the most helpful tool to study for the Cisco exams. Well Done!"
Darrell Wilkerson
Compucom Systems, Atlanta, GA
"Certification Zone is the best site I've found. It's been worth the money. The Study Guides have been very helpful. The Tutorials are to the point and the Lab Scenarios are well done. "
James Johnson
Concord, CA
"Your site offers the tools needed to pass the exams, hands down."
John Manning
Fleet, Troy, NY
"[Certification Zone] helps when one reads the many brilliant articles - in particular Dan Farkas's LAN Switching and Peter Van Ohne's ISIS - one can really get a lift in knowledge. Combined with Practice Exams, the Zone really helps you towards the written exams."
Simon Vyrdal
Frederiksberg, Denmark
"As a Cisco CCNA Academy instructor I find the additional information extremely helpful in preparing myself for class presentations as well as checking my own knowledge."
John Fialko
CCNA Networking Academy Instruct
Ft. Collins, CO
"Certification Zone definitely helped me pass the CCIE written exam. I doubt I would have been able to pass without it. I highly recommend your site to anyone who is preparing for any Cisco exam."
Michael Brady
GE Capital - IT Solutions
"I feel the site is probably the best site for preparing for Cisco certification. I have recommended this site to numerous individuals. The quality of the material is the best I have seen. It is a gold mine for those seeking Cisco certification. "
Richard Beamish
Getronics Government Solutions, Rockville, MD
"I have passed the CCIE Written Qualification Exam... I have been preparing for it for the last seven months and used a lot of Cisco press books [including], CCIE LAN Switching, Routing TCP/IP I & II, the CCIE Routing & Switching Exam Cram book from H. Benjamin, and the CCIE Routing and Switching Exam Guide 350-001 from Lucent NetCare. But, I found it extremely difficult to put all the relevant topics together and concentrate on the exam objectives. After receiving an email from Certification Zone, I decided to subscribe to Certification Zone for three months. From that point onward, I used only the Zone Study Guides and the Study Questions. I [also] attempted the Zone's Practice Exam frequently. On the last day of my 3-month subscription, I decided to try the Exam. [Up] until then I had done all the 12 Practice Exams and passed 5 of them with the highest mark of 825. My plans were if I failed the first attempt, [then] I will study for another 2 months before my 2nd attempt. I passed the exam with 81% score, which I feel, [is] a very good one. I [would like to] take this opportunity to thank Certification Zone web masters on their excellent effort for showing the correct path for passing the exam successfully. Especially the 2 ATM papers, Bridging, Token Ring papers are excellent without taking anything away from other papers which are also very comprehensive and very good. Hats off to the Zone Masters and to Certification Zone."
Ansar Mohideen
Gulf Aluminum Rolling Mills Company, Bahrain
"Certification Zone bridges the gap between theory and practical experience."
Elil Raj
JSI Netsystems, Piscataway, NJ
"Certification Zone is an excellent site. It gives you more in-depth knowledge than is really required to pass the CCNA exam and helps you to really understand the Cisco networking process. Your [Practice Exam] questions are much harder than the actual exam which helped me to know the material inside-out. The Zone's OSI Pocket Guide is also invaluable. I still use it to refresh my memory."
Liz Howell
Milton, FL
"Certification Zone is a very good source to keep up with changing technologies. I have recommended your site to my 100 students and made a very strong link between your material and the 935 I scored."
Alan McDermott
CCNA Networking Academy Instruct
Mission Viejo, CA
"Certification Zone is an awesome resource for the people who really want to know their stuff. It is very affordable...I especially benefited from the Lab Scenarios. I especially owe my pass on the BSCI to Certification Zone."
Colleen Dick
Missoula, MT
"I have been a Subscriber for about three years. Although I originally used the Zone for preparing for my exams, I have found the information useful in extending my understanding in general. I am a technical trainer for a large quasi-governmental organization and the Zone coupled with the Cisco site has been useful in helping me to answer questions from our IS staff in areas that I am less familiar with."
Pat Hulsey
Norman, OK
"The material [at Certification Zone ] is presented in a very professional and concise manner. The contributors of the material seem to be very knowledgeable and go the extra distance to explain concepts and fundamentals. This was very helpful to me because if I get hung up on a particular topic, it is extremely difficult to build off it. Kudos to the creators of the site and the staff which operates it. I would recommend this technical site to anyone who was serious about becoming Cisco certified as well as a great technical reference site. The Zone helped me a lot to succeed in CCNA, thanks to your Tutorials and Study Questions. It was well-invested money...I would recommend it for everyone that wish to pass the Cisco exams. "
Fabio Muller
Rio de Janeiro, Brazil
"It's helpful to have a real-time site like the Zone for study purposes. As technology changes and evolves almost daily, its critical that the material being studied changes with the technology "
Donald Roy
Seattle, WA
"I have used the Zone as one of my primary certification study tools and I like it for the quality of content in the Tutorials as well as for the Practice Exams. The Practice Exams are the best I have used and I have them all."
Constance Cate
Siemens ICN, The Colony, TX
"I think that this is my 3rd renewal to Certification Zone and I will be renewing again! I believe my experience with the site is too valuable to give up by not having a subscription."
Shauna Lipton
Toronto, ON, Canada
"[The Zone is the] best certification site I have found for Cisco, and I'm pretty sure I've seen them all... the practice tests are second to none."
Ray Brehm
United Computer Sales & Service, Cherry Hill, NJ
"The Certification Zone sample test that I took pushed me well over the top.... Best $35 I've spent en route to my CCIE goal. Thank you for enabling me to pass [the CCIE] on the first attempt!!!"
Andrew Short
Design Engineer
Greenwood, IN
"I have found that your resources are probably the best on the market...and I work at Cisco :)."
Anonymous Cisco Engineer
"This morning I passed [the CCIE written exam] with a 75%... The practice tests and white papers [at Certification] are great. Well worth the money."
Chuck Church
Valley Cottage, NY
"I thought the Certification Zone tests were slightly harder than the real thing. They helped me tremendously to prepare for the actual exam. I passed the CCIE R/S Qualification test with an 86. Thanks to all the fine folks at CertificationZone"
Colin Fabeny
Raleigh, NC
"Your website took the guess work out of taking the Exam. It is my intent to know my field. I wanted to know the material and not just memorize the material. My goal is to attain CCIE status. I am now seeking the CCNP. Next week I take the CLSC� and the ACRC�. Your website is the reason for my confidence in even considering the task. I thank you for the help... and keep up the outstanding job."
Daniel A Calix
Baker, LA
"... there is no other Cisco preparation site that gives the level of depth that you find on CertificationZone. It's one of the best investments that I've made in test preparation. "
Frank Jimenez
Garland, TX
"I used Certification Zone to prep for the CCIE written. It was AWESOME. Kudos Howard!!! I started taking the Zone's simulated exams about 4 months before taking the real thing. Boy, did they kick my butt. I think I got a 36%. I got an understanding of the structure of the questions and the slant that the questions would take. Reviewing the correct answers helped tremendously. After the 4-month period I finally scored an 87%. Two days later I got an 85% on the real exam. That tells me that Howard has done a great job setting the level of the exam extremely close to the real thing. "
Joe Martin
"I just passed the CCIE written exam and wanted to let you know that Certification Zone's Practice Tests are excellent!!! I used them to help me prepare for the exam and I can attest to the fact that the Zone's practice tests are a good gauge for the real test. I got a 74.8 score on your practice test and an 82% on the actual exam. The explanations you provide on the scoring summary were really good, also. Just keep it coming."
Larry Dwyer
Frederick, MD
"I passed the CCIE R&S; Lab Exam on the first try and am pretty happy about that. I found that the Tutorials and Lab Scenarios in Certification Zone's on-line Study Guides were very helpful to my success on the exam. The Hello Computers R&S; Lab Exam Practice Scenario I purchased from you guys also helped my preparation efforts. It gave me a way to judge speed and was a reality check regarding what I thought I knew and what I needed to practice."
Larry Melson
Mantua, NJ
"I'm writing this to tell you how much I appreciated the Certification Zone web site. I felt that the [Study Guides] were very well thought out, informative, and well written... They helped me fill in some blanks that the [Cisco Networking Academy] curriculum left sketchy. [Your site's] simulated practice exams were an excellent tool to judge my progress and to identify my weak areas. The explanations given after each question were very helpful....With the knowledge and confidence that I received from this site, (and a lot of studying), I earned a score of 914/1000 on the CCNA exam. "
Michael P. Donnelly
Saratoga Springs, NY
"I just wanted to thank you folks [at Certification Zone] for your assistance. I used your CCNP CD for practice and to identify my weak areas. Passed the CCNP recert on Tuesday without any big problems."
Ron Wagner
"I'd like to thank Certification Zone for an excellent study tool. I became a Subscriber a year ago and worked my way through most of the article's posted on the Zone. This - of course is hard work - but it pays back. The vast majority of the articles is of high standard and it seems unfair to mention any particular author - but I will anyway. Dan Farkas two articles on switching are brilliant. Last week I passed the CCIE qualification in my first attempt."
Simon Vyrdal
Frederiksberg, Denmark
"I just took [the CCNA] this Saturday AND I PASSED FIRST TIME!!...Thanks for having a great sight. I know it helped me tremendously. I shall tell all my friends to definitely go to THE CERTIFICATION ZONE!!!!"
Victoria Gray
Tulsa, OK
"A big thanks to the Zone for preparing me to take and pass the new Cisco Swicthing exam (BCMSN 642-811.) A quick brush-up on Spanning Tree and VLANs were very helpful, but the real aid came with the multicast tutorials and questions and Mr. Berkowitz's new Cisco Switching tutorial. The 3550 notes were great, as well as the High Availabilty info. Since I passed this exam, I am recertified as a CCNA and CCDA for three more years as well as a jump start on the CCNP."
Jeff Arey
Point of Rocks, MD
"I wanted to drop you a note and say how much I rely on your site. Not just for test preparation, but for true understanding of the material which helps me do my job. The number of authors you have is extraordinary and having overlap on coverage of topics by different authors give me different perspectives on the many subjects covered in your materials. I think it's the people (at Certification Zone) that separate it from any other Cisco study site on the Web. The breadth and depth of the experts are second to none. I must also comment on the Customer service, it is so nice to have a real person reply to my questions regarding my account or purchases. I have been with Certification Zone for years and I have been dealing with the same person (Cindi Lambert) from day one. This is not a fly by night, here today gone tomorrow website, Certification Zone is a name I trust."
Sal DiStefano
Personal Study Zone

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