Cisco NEW CCNA R/S (200-125): The Complete Course
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Cisco NEW CCNA R/S (200-125): The Complete Course

This NEW CISCO course is all you need to prepare & pass Cisco's new CCNA R/S 200-125 certification exam
4.5 (1,891 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
11,168 students enrolled
Created by Lazaro Diaz
Last updated 3/2017
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Current price: $10 Original price: $190 Discount: 95% off
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  • 20.5 hours on-demand video
  • 127 Supplemental Resources
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
What Will I Learn?
  • Once you complete this course, you will be prepared and ready to pass Cisco's new CCNA R/S 200-125 certification exam.
  • If you need to be knowledgeable in Networking, than this is the course for you!
View Curriculum
  • Those taking this course should have a basic knowledge of Networking
  • Students should have a CCNA R/S study guide book to go along with the course since it will reiterate what is being taught in the course.
  • The course uses a combination of simulators like the Cisco Packet Tracer, GNS3 & VIRL to show different topologies and drive the information in a visual manner
  • The simulators used are not provided as part of the course
  • It is the students' responsibility to acquire their own simulator and or live equipment to replicate the topologies shown in this course
  • Anyone that has a passion for Networking, whether for a certification or not, must take this course
  • Books used in this course: CCNA R/S by Cisco Press, Sybex CCNA book by Todd Lammle & The Only IP Book You Will Ever Need!, by Lazaro J. Diaz

This course is for Cisco's newest certification, the CCNA R/S 200-125, that became effective on August 21st, 2016. 

Cisco certifications do have an expiration date and they need to be renewed every couple of years. 


Laz is notorious for his nonchalant and unorthodox way of teaching, and has quickly become one of UDEMY's top instructors with a student base of over 38K+ students in his old CCNA 200-120 (now a private course), and an overall student base of 53K+ and counting for all his courses on UDEMY.

Not to mention his achievement in being instrumental in getting hris students certified world wide.

Laz's courses are being taught in over 194 countries and some of these have been translated into other languages.

This is why he has become a rising star in Cisco certifications and Networking!

This is his latest course for the CCNA R/S and has everything you needs to prepare for the 200-125 certification exam.

The course was produced in a very effective manner where you, the student, would feel as if you are in a classroom setting and the instructor is speaking directly to YOU.

Following Laz's instructions and using his recommendations for other resources like books, etc., has proven to be the key to lead his students to achieve success in passing the certification exam.

In Laz's style of teaching, (and there is a method to his madness), is very laid back and somewhat unorthodox, as you will see for yourself.

However, this is to make the topics covered more digestible and easier for anyone to understand. Even if you are totally new to Networking.

So, whether you are a novice, need to pass the CCNA or just need a refresher for your current job, this course has everything you need.

Don't doubt the Instructor with the proven record, but rather embrace his knowledge and his experience when it comes to this; after all...his reputation depends on your success!

You will acquire the knowledge in this course to make it transferable to real world use, as a Cisco and/or IT Professional.

DISCLAIMER:   Please note that the simulators/emulators used in this course are not part of the course. It is the students responsibility to have these to practice with. The Cisco Packet Tracer & VIRAL (Virtual Internet Routing Lab) are Cisco proprietary software and can only be obtained through Cisco. But students have more options that those. They can create their own lab with real equipment, get BOSON or GNS3. It is up to each student to obtain the simulator/emulator of their choice to study along with this course. Please also NOTE:  .pkt files have been up-loadable to UDEMY's site via a ZIP folder. However, I would like to stress that replicating my labs will help students to practice, follow along and will drive down the information in a more precise manner where the students will retain more of the information for the test.

BOOKS USED IN THE COURSE:  CCNA R/S by Cisco Press, Sybex CCNA Study Guide by Todd Lammle & The Only IP Book You Will Ever Need!, by Lazaro J. Diaz - These are ALL available on AMAZON

This course will give you an in-depth understanding of networking, using routers and switches and their various configurations and connections. You will learn how to configure; default, static and dynamic routing. You will comprehend how to manipulate each of the routing protocols attributes to meet the requirements of the network.

This course will also prepare you in Layer 2 technology and its various configurations, such as; VLAN’s, VTP, STP, PortFast, EtherChannel, Port-Security, Inter-VLAN communication & Trunking; plus the newest requirements needed for CISCO's NEW CCNA (200-125) certification exam as well.

You will also acquire the knowledge needed to secure the routers through the use of Access-list, configuring the different types of NAT & will be able to manage the router’s components.

As a students, you will also be able to thoroughly grasp the concepts of both Internet Protocols; IPv4 & IPv6. These are KEY to any Network!

Please keep in mind that Laz has his own book called "The Only IP Book You Will Ever Need!" that will further help those that need a more in-depth understanding of IPv4 & IPv6.

Also covered in this course is Wide Area Network Protocols like HDLC, PPP, Frame Relay, HSRP, BGP, MPLS, NHRP, MGRE among other things.

You will also learn how to create redundancy in  networks through the use of Redundancy Protocols such as HSRP which is just as important. Also, within the WAN, you, the student, will also learn how to create VPN’s and GRE Tunnels among other things that are crucial in passing the new CCNA.

Great achievements and success is at your grasp!

All you need to do is let this course guide you through it.

The possibilities are going to be endless once you take this CCNA certification course.

And now, with UDEMYS Pilot program for Certification TEST Courses (which this course is part of), your odds of succeeding has just skyrocketed!

Who is the target audience?
  • This course was prepared for those that need to pass the CCNA R/S 200-125 certification exam
  • Students that are currently in College or University for Networking of Computer Science degrees
  • Anyone that wants to advance their career into Networking
  • Employees that need to get the CCNA R/S certification to maintain their relevance in their job
Students Who Viewed This Course Also Viewed
Curriculum For This Course
151 Lectures
Introduction to the CCNA 200-125 Composite Certification
2 Lectures 10:02

In this course you will be learning from the foundational parts of networking to the more advanced portions, such as DMVPN, The BGP Routing Protocol, MPLS and other Concepts needed as a CCNA or Real world Network engineer would use.

Preview 06:32
Introduction to TCP/IP Networking
7 Lectures 30:36

In this Lecture its really just an acknowledgment of the importance of Popularity, history and importance of the TCP/IP model.

Preview 04:02

In this lecture you will learn that all networks are not equal. Every Network will have different designs but will attempt to stay within the guidelines of the network blueprints.

Preview 08:47

In this Lecture we will look at what takes place at the Application Layer of the TCP/IP Model.

The Application Layer of the TCP/IP Model

In this Lecture we will look at what takes place at the Transport Layer of the TCP/IP Model.

The Transport Layer of the TCP/IP Model

In this Lecture we will look at what takes place at the Network Layer of the TCP/IP Model.

The Network Layer of the TCP/IP Model

In this Lecture we will look at what takes place at the Link/Physical Layer of the TCP/IP Model

The Link and Physical Layer of the TCP/IP Model

In this Lecture we will Summarize what we have Covered.

Summary of Section
The Breakdown to the OSI Model
5 Lectures 20:44

In this lecture we will look at a  brief history and structure of the OSI Model.

Preview 02:17

In this Lecture we will compare both models to see how the Layers Map to each other Layer.

Comparing the OSI Model with the TCP/IP Model

In this lecture we will look at the layers of the OSI model and what part they play in networking.

OSI Layers and their functions

In this lecture we will learn the importance of breaking down networking concepts into different smaller layers to make it more digestible.

OSI Layering Concepts and Benefits

we will summarize what we have covered

Summary of Section
A look at the Cisco Models
3 Lectures 08:23

In this lecture we will briefly discuss the Cisco Layer 3 Model

Preview 03:25

In this Lecture you will learn the new Cisco 2 layer Model.

Cisco Collapsed Architecture

In the lecture we will summarize what we have covered.

Summary of Section
An Introduction to Ethernet LANs
5 Lectures 36:00

In this brief lecture we will learn the definition of Ethernet LANs

An Overview of LANs

we will look at design for a basic SOHO LAN

Common Small Office Home Office LAN

In this lecture we will look at a design for a basic enterprise LAN

Common Enterprise LAN

we will discuss the different standards of cables used on an Ethernet LAN

Ethernet Cabling Standards

We will summarize what we have covered.

Summary of Section
Nodes used on Ethernet LANs
2 Lectures 10:20

In this Lab we will go over some of the devices that are used on an ethernet Network and some that you will never use!

Devices used on an Ethernet Network

we will summarize what we have covered.

Summary of Section
Introduction to IPv4 Addressing
4 Lectures 35:22

In this lecture we will go over the importance of IP Addressing and the Importance of knowing all aspects of it, such as the format, assigning, Subnetting, VLSM and Summarization.

Introduction to IPv4 Addressing

In this lecture we will learn not only the format of an IPv4 address but how to Identify and IPv4 address by looking at the first octet.

Format and Classes of an IPv4 Address

In this lecture you will learn the Private IP ranges and why they are considered Private address or non-routable addresses on the internet.

Private IP Addressing

we will summarize what we have covered.

Summary of Section
Class-Full Subnetting in IPv4
5 Lectures 31:03

In this Lecture you will learn the secrets to Subnetting any class of address, whether if you are given a subnet mask or not.

Class-Full Subnetting in IPv4

You will learn how to subnet various class C Addresses

Subnetting a Class C Address

In this lecture you will learn how to Subnet various Class B Addresses

Subnetting a Class B Address

You will learn how to Subnet various class A Addresses

Subnetting a Class A Address

We will Summarize what we have covered.

Summary of Section
4 Lectures 19:42

In this lecture you will learn how to properly use VLSM in your network and why did VLSM come to be.

Preview 02:43

In this lecture we will learn hoe to resolve a given problem using VLSM

VLSM Breakdown

In this lecture we will create a VLSM network and assign the IP's and Masks to the PC's and Routers.

Creating a VLSM Network

We will summarize what we have covered.

Summary of Section
Route Summarization
4 Lectures 18:07

We will learn the importance of summarization and what Route Summarization is.

Route Summarization

In this lecture I will show you how to summarize multiple networks using binary.

Summarization Breakdown

In this lecture you will learn how to assign a summary address to the router.

Assigning the Summary Address

we will summarize what we have covered.

Summary of Section
20 More Sections
About the Instructor
Lazaro Diaz
4.4 Average rating
7,766 Reviews
57,506 Students
22 Courses
Network Engineer, Cisco & Microsoft Instructor

2017 will be the year to achieve your goals!

If you are determined, ambitious and hungry for a new beginning...then 2017 should be your year!  

...and how better to start or end the year than to get an IT Certification!

Whether you are interested in the CCNA R/S, the CCENT, ICND2, the CCNP, CompTIA or Microsoft certifications; or maybe you just want to understand the key topics for these, taking one or ALL of my courses, will get you a lot closer to that goal.

But, don't take my word for it...please take a look at the FREE previews (they are available in all my courses) and see for yourself.

As for me, 2017 will be the year of putting out new courses for different types of IT certifications among other things.

Expect to see more courses on Cisco, Microsoft, CompTIA to name a few.

I also hope to complete my second book based on ALL the Routing Protocols either at the end of 2017 or by the first quarter of 2018.

However, keep in miind that my first book is currently available on AMAZON and it's called "The Only IP Book You Will Ever Need!" This is for those that may need a little help in understanding IP's since it is the key topic to Networking and IT in general.

So, yes, with all these great plans for the near future, my schedule will be quite full but fulfilling!

Now...what you wanted to know about me but where afraid to ask:

If you are tired of the same old methods of learning and want someone that is pretty much unconventional, but at the same time will provide you with an enjoyable learning experience in layman's terms...then please preview my courses and you will discover that I am your guy.

I am a Network Engineer with many years in the field and in the teaching industry. I hold the following certifications: CCNA, CCNA Security, CCNA Voice, CCNP, Security+, Network+, A+, MCP, MCTS & MOS and since then, I have passed the first of the required two test for the CCIE.

My teaching experience stems from teaching at institutions like Palm Beach Community College, New Horizons, Florida Career College (now Anthem College) and The Academy of South Florida not to mention that I also do private consulting.

Now, I bring the classroom to you by being in several e-Learning platforms world-wide, teaching over 100K students...courtesy of the internet. Thank goodness for technology!   ;-)

Having been in all sides of the spectrum; as a student, a teacher/trainer, and in the field, I believe this uniquely qualifies me to understand you, the student. I know first hand what you have been exposed to as opposed to what you really want to accomplish. These two are sometimes extremely conflicting and frustrating. That is why I teach in the manner I do and can relate to your rejection of the Status Quo.

I have taught corporate employees at MetroPCS (now T-Mobile) and have also taught IT professionals of companies like The Florida Marlins, Ulysse Nardin, Alberta Water Department (Canada), The Assurant Group, Hospital personnel & Attorney's firms, among others. to guide them in acquiring their IT certifications or general knowledge. 

However, my expertice also extends to being able to teach applications as well. YES!...I am also an applications instructor and qualified to teach Word, Excel, PowerPoint and Access.This of course includes the MOS (Microsoft Office Specialist) certification.

As you can see, I am a multifaceted person and consider myself to be an eternal student as well.

I teach in an unconventional way that allows for students to understand the subject matter and can therefore, not only prepare them for a Cisco,  Microsoft or CompTIA certification exam, but apply my methods in the real world. I strive to give the student a greater opportunity to compete in the current job markets. Do I go above and beyond what is needed for a certification?...YES, I do!...because it's not only about getting a certification, it's also about making sure that you, the student, is prepared for a job interview and/or maintaining your current job by enhancing your skills. This is where I step in and make sure that you are prepared for whatever you need and make you an asset to your employer. Everyone has different requirements and I make sure, or at least I try, to provide information for most scenarios.

My classes and/or courses are very simple and that's how I like to teach. I truly believe in "KISS",,,NO, I don't want to kiss you, what this means "keep it simple stupid" - If things are kept simple, easily explained in a way that the student can grasp quickly and retain the information...then I have achieved my goal!

For those that do not know me yet, you may not be used to my style of teaching, but you will soon get accustomed to it :)... I'm very laid back, I try to make learning fun and I teach in layman's physics jargon or mumbo jumbo in my teachings. My courses are very interactive and extremely dynamic! will not find my lectures monotone or boring, because falling asleep, for lack of excitement, is just NOT an option. Just take a look for yourself at my video previews, which I always provide on ALL my courses, so you can determine if I'm the right guy to help you get your industry specific certifications. ;)

I certainly hope that after a careful review of my credentials & testimonials (you can Google it you know!), I'm the Cisco, Microsoft or CompTIA Instructor you're looking for!


Network Engineer, Cisco, Microsoft, CompTIA Instructor &
Motivational Evangelist

- and -

Author of: "The Only IP Book You Will Ever Need!" now on AMAZON