Paths

Cisco Certified Entry Networking Technician (CCENT)

Author: Ross Bagurdes

The CCENT is an industry standard certification that demonstrates competency in data networking operation, and the technical language used to describe it. To earn the CCENT... Read more

Cisco CCENT / ICND1 100-105

This series of courses will help prepare you for the ICND1 exam, which will earn you the CCENT certification.

1

Introduction to Networking for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Jul 7, 2016 / 1h 58m

Intermediate • 1h 58m

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Description

In this course, Introduction to Networking for Cisco CCNA 200-125/100-105, you will examine how basic human communication, like talking in person or on the phone, contains the same fundamental concepts used in moving data across a network. First, you will learn how to examine communication, and determine how to dissect it into components so it can be individually categorized and described. Next, you will learn how to break down communication into components, which will be of great benefit when understanding data networking, as there are many simple protocols which interact in complex ways. To accomplish this you will learn the TCP/IP and OSI models of networking, encapsulation, addressing, as well as what is called "chunks of information" at different points in the communication process. Finally you'll learn about the history and the birth of high speed data communications. By the end of this course, you'll know the OSI Model, TCP/IP Model, and you'll have an understanding of what encapsulation is as it relates to data networking.

Table of contents
  1. Course Overview
    2m 4s
  2. A Brief History of Moving Information
    10m 22s
  3. Dissecting Communication
    10m 54s
  4. Network Communication Models
    24m 13s
  5. Encapsulation
    12m 29s
  6. Data Networks and Addressing
    39m 25s
  7. Cisco Certifications
    18m 37s
2

Network Layer Addressing and Operation for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Jul 12, 2016 / 3h 48m

Intermediate • 3h 48m

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Description

As early as 1985, engineers knew there would be a shortage of IPv4 addresses before the end of the century. Over the next decade, engineers found a very clever solution to the problem, however it created a complex address. This course will go into extreme detail to describe the structure of an IPv4 address and its subnet mask counterpart. To do this, understanding binary numbers becomes very important. We will describe how binary numbers work, how to convert from decimal to binary and back again, as well as see how hexadecimal easily integrates into binary. This may sound daunting, however, we keep the content simple and easy to follow, so it is not overwhelming. After understanding binary and the structure of an IPv4 address, we will examine how to break a single IPv4 network into multiple IPv4 networks, understand the definition of a network address, broadcast address, and a host address. We will the examine how to calculate networks more efficiently using Variable Length Subnet Masking(VLSM), and to wrap up IPv4 addressing, we will take a simple IPv4 network, break it into 2 networks, and then observe its behavior across a router. Once we wrap up IPv4, we move into IPv6, and explain the nuances of this new and obscure looking address. We keep it as simple as possible, so you understand the structure and operation of the IP address, without getting bogged down in nuanced details, infrequently used in IPv6. We will wrap up IPv6 by learning how IPv6 networks are distributed to ISPs, customers, and finally customer sites.

Table of contents
  1. Course Overview
    1m 9s
  2. Introduction to Binary
    22m 46s
  3. Introduction to IP Addressing
    33m 41s
  4. Introduction to Subnetting
    25m 40s
  5. Subnetting Examples
    21m 13s
  6. Introduction to IPv6
    39m 52s
  7. IPv6 Subnetting
    25m 34s
  8. Router Operation
    16m 5s
  9. Variable Length Subnet Masking (VLSM)
    27m 20s
  10. Check Your Knowledge
    15m 26s
3

Configuring a Cisco Router for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Jul 21, 2016 / 2h 43m

Intermediate • 2h 43m

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Description

Configuring a Cisco router is more than just entering commands. In order to properly understand what the configuration steps do, you need to have a basic understanding of the components of a router, including processor, memory, and input/outputs. In this course, Configuring a Cisco Router for Cisco CCNA 200-125/100-105, you will learn different types of memory and the files stored in them, the order in which the files are loaded, as well as the function of each file. First, you will walk though, step by step, the commands and their function to properly configure the basic features of the device. This includes setting a router name, securing user and privileged modes, enabling encrypted remote support via SSH, and applying IP addresses to interfaces so the router can pass traffic. Next, you will see a demonstration about configuring the router in a long form, and then redo the same configuration using tips, tricks, and shortcuts to speed up the process. Common errors, including errors made during the configuration, will be pointed out and discussed. You will wrap up the course by examining Internetworking Operating System (IOS) file names, demonstrating how to upgrade IOS, as well as how to access router configuration when you don't know the password. By the end of this course, you'll understand the commands required to bring a router online, allowing it to pass traffic from one interface to another, which will help you on your path to earning the CCNA.

Table of contents
  1. Course Overview
    1m 24s
  2. Cisco Router Basics
    9m 22s
  3. Cisco Router Files and Licensing
    12m 1s
  4. Router Configuration
    48m 22s
  5. Router Configuration with Shortcuts and IPv6
    31m 7s
  6. Upgrading IOS
    19m 3s
  7. Check Your Knowledge
    41m 45s
4

Network Interface Layer and Ethernet Operation for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Aug 10, 2016 / 3h 6m

Intermediate • 3h 6m

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Description

Get a better understanding on how Ethernet operates and how to configure a Cisco switch. In this course, Network Interface Layer and Ethernet Operation for Cisco CCNA 200-125/100-105, you'll learn some network interface layer protocols but focus your attention on Ethernet and Ethernet switching. First, you'll learn the details of the types of cabling, fiber optics, and wireless technology used in data link layer protocols to move information. Then, you'll examine a variety of data link layer protocols and where they are used. You'll also look at the long history of Ethernet, and then examine the Ethernet frame header, the Ethernet Switch, and how a layer 2 broadcast message propagates through the network. Lastly, you'll see a detailed demonstration of a switch configuration as well as an examination of the behavior of hubs and switches in the same network, and what the MAC address table looks like on a series of switches connected together. By the end of this course, you'll have an in-depth understanding of Ethernet and how to configure a Cisco switch.

Table of contents
  1. Course Overview
    1m 29s
  2. Physical Layer Technologies
    31m 10s
  3. Data Link Layer Technologies
    22m 18s
  4. Introduction to Ethernet
    30m 33s
  5. Ethernet Switching
    27m 29s
  6. Switch Configuration
    35m 15s
  7. Check Your Knowledge
    37m 46s
5

Troubleshooting Essentials for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Aug 15, 2016 / 2h 14m

Intermediate • 2h 14m

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Description

Troubleshooting can appear to be complex and mysterious. However, if you approach solving problems with an understanding of data networking and a method to work towards solution, troubleshooting can be more about persistence than anything magical. In this course, you will learn a methodology to approach troubleshooting, how to use the OSI and TCP/IP models to understand networked systems, and examine to approach solving IT problems with flexibility. You'll learn about CDP and LLDP and how to use these protocols to build a map of a network. Additionally, you'll understand the Cisco Design Model. Finally, you will see how to use ping and other utilities to investigate simple network issues, and see the error messages that occur from simple mistakes. By the end of this course, you'll have a solid understanding of the troubleshooting concepts covered on the Cisco CCNA 200-125 and 100-105 exams.

Table of contents
  1. Course Overview
    1m 28s
  2. Troubleshooting Methodology
    32m 10s
  3. Flexibility with Troubleshooting
    21m 33s
  4. Neighbor Discovery
    40m 48s
  5. Cisco Network Design Model
    8m 9s
  6. Check Your Knowledge
    30m 18s
6

Routing IPv4 and IPv6 for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Aug 30, 2016 / 4h 45m

Intermediate • 4h 45m

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Description

The entire purpose of a router is to move packets from one interface to another. This course will explain in detail how IPv4 and IPv6 routing works. You will start by learning how ARP operates, allowing IPv4 packets to be sent in an Ethernet frame. Next, you will examine how you can get IP packets off of a network by using the default gateway configuration on a PC, and then take a look at what happens after the router receives the packet, and uses a route to forward the message. This course will describe how to specify and configure static routes for both IPv4 and IPv6. Throughout the course, you will look at troubleshooting tools, how to use them to effectively troubleshoot a network, and wrap up the course by looking at how you can set up a redundant IPv4 network using static routes.

Table of contents
  1. Course Overview
    1m 29s
  2. Address Resolution Protocol
    28m 28s
  3. The Default Gateway
    25m 25s
  4. IPv4 Static Routing
    30m 45s
  5. Troubleshooting IPv4 Static Routes
    34m 5s
  6. IPv6 Neighbor Discovery Protocol
    30m 39s
  7. IPv6 Static Routing
    19m 48s
  8. Troubleshooting IPv6 Static Routing
    20m 3s
  9. Check Your Knowledge: Route Selection and Dual Stack
    48m 27s
  10. Check Your Knowledge: Static Routes in Redundant Networks
    46m 28s
7

Introduction to Dynamic Routing for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Sep 16, 2016 / 2h 57m

Intermediate • 2h 57m

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Description

Routing protocols are used to exchange routing information between routers so that engineers do not need to maintain complex static routing plans. In this course, Introducing Dynamic Routing for Cisco CCNA 200-125/100-105, you will examine the different types of routing protocols and their operation. You will start with examining the behavior of a simple dynamic routing protocol, then examine RIP and OSPF. Next, you will implement OSPFv3 for IPv6 networks. Finally you will examine the OSPF neighbor table, OSPF link state data base, and routing table for both IPv4 and IPv6. By the end of this course, you'll be able to implement the OSPF routing protocol to allow your network to dynamically exchange routing information, and create a redundant network.

Table of contents
  1. Course Overview
    1m 33s
  2. Protocols and Terminology
    44m 16s
  3. Introducing OSPF
    40m 24s
  4. OSPFv3
    29m 59s
  5. Troubleshooting OSPF
    48m 8s
  6. Check Your Knowledge
    13m 36s
8

Introduction to VLANs for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Sep 26, 2016 / 2h 21m

Intermediate • 2h 21m

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Description

VLANs are a great concept and are widely used throughout the networking industry. The idea of a VLAN is simply that an administrator has the ability to configure a switch such that there are multiple broadcast domains enabled, and inter-broadcast domain communication is not allowed. Effectively a VLAN is a broadcast domain. In this course, Introducing VLANs for Cisco CCNA 200-125/100-105, you will examine VLANs, VLAN trunks, the layer 3 switch. You will also setup a problematic network, and make errors during configuration. Finally, you'll examine both how the network will behave and how to repair broken networks. After completing this course, you'll be ready to segment a network with a single switch using VLANs.

Table of contents
  1. Course Overview
    1m 29s
  2. Broadcast Domains and VLANs
    27m 48s
  3. Trunking VLANs
    29m 31s
  4. InterVLAN Routing
    13m 18s
  5. The Layer 3 Switch
    14m 28s
  6. Check Your Knowledge
    55m 23s
9

Securing the Switch for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Oct 10, 2016 / 2h 25m

Intermediate • 2h 25m

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Description

Switches are fantastic devices, allowing you to create VLANs, trunks, as well as offer fast and somewhat private communication. However, the basic nature of switch operation, as well as the advent of trunk links, VLAN tags and some backwards compatibility features, created some extra security risks that were not anticipated upon the advent of the technology. In this course, Securing the Switch for Cisco CCNA 200-125/100-10, you will start off by learning about frame double-tagging. Next, you'll move onto the native VLAN security issues and DTP. You'll wrap up the course with a demonstration of creating a secure base configuration for a switch. By the end of this course, you'll know how to put a secure base configuration on a switch, mitigating many layer 2 attacks against Ethernet.

Table of contents
  1. Course Overview
    1m 33s
  2. The Native VLAN
    25m 42s
  3. Dynamic Trunking Protocol (DTP)
    24m 39s
  4. Switchport Port Security
    59m 35s
  5. Check Your Knowledge
    34m 7s
10

TCP and UDP Operation for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Oct 28, 2016 / 2h 1m

Intermediate • 2h 1m

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Description

TCP is used in nearly every transaction users have on a network. Surfing the web, checking your email, watching a streaming video, all use TCP as the transport layer protocol. TCP has a very precise operation, and understanding how it works leads to becoming a great network troubleshooter. In this course, TCP and UDP Operation for Cisco CCNA 200-125/100-105, you will learn about the TCP three-way handshake, port number addressing, and sequence and acknowledgment numbers used for reliable communication. Next, you explore at TCP's less reliable partner, UDP. Finally, you'll understand where UDP is used and why you use it. By the end of this course, you'll know how the TCP three-way handshake works, as well as how TCP uses sequence numbers to ensure successful data delivery.

Table of contents
  1. Course Overview
    1m 23s
  2. Networking and the OSI Model
    21m 22s
  3. Transmission Control Protocol (TCP)
    41m 59s
  4. TCP Sequence Numbers
    30m 1s
  5. User Datagram Protocol (UDP)
    26m 26s
11

Application Layer Protocols for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Nov 15, 2016 / 2h 45m

Intermediate • 2h 45m

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Description

In a business, the entire purpose of the data network is to make the business function more effectively through the use of software applications. In this course, Application Layer Protocols for Cisco CCNA 200-125/100-105, you will examine critical application layer protocols that both help keep the network running, as well as allow end users to easily access resources on the internal network as well as the Internet. Then, you'll learn about the application layer protocols that assist engineers in maintaining the function of a network efficiently, like DHCP, DNS, Syslog, and NTP. Engineers use these protocols to maintain networks, and create an effective user experience. Finally, you'll learn about the other application layer protocols, like HTTP and FTP, and how they are used by the users themselves to browse to websites or download files. By the end of this course, you will have the foundational knowledge of DHCP, DNS, FTP, HTTP, NTP, and Syslog. You will even learn how to investigate a strategy to mitigate rouge DHCP servers from attacking your network.

Table of contents
  1. Course Overview
    1m 46s
  2. Application Layer Protocols
    29m 58s
  3. Syslog and Network Time Protocol (NTP)
    49m 36s
  4. Domain Name System (DNS)
    19m 10s
  5. Dynamic Host Configuration Protocol (DHCP)
    37m 13s
  6. DHCP Snooping
    5m 27s
  7. Check Your Knowledge
    22m 28s
12

Access Control Lists (ACLs) for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Nov 21, 2016 / 2h 37m

Intermediate • 2h 37m

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Description

Access Control Lists (ACLs) are an important and useful tool on a data network. ACLs allow an administrator to select traffic and filter traffic as it flows through a network. In this course, Access Control Lists (ACLs) for Cisco CCNA 200-125/100-105, you will first examine how standard and extended IPv4 access lists operate. Next, you'll learn how to implement each type of list on a router. Finally you'll explore common errors and how to troubleshoot ACLs using Wireshark. By the end of this course, you will be able to write your own access control lists to filter whatever traffic you want to either permit or deny on your networks.

Table of contents
  1. Course Overview
    1m 28s
  2. Introduction to ACLs
    25m 22s
  3. Standard ACLs
    28m 55s
  4. Extended ACLs
    33m 29s
  5. Check Your Knowledge: Wildcard Masks, Logging, and ACL Scenarios
    41m 11s
  6. Check Your Knowledge: Using Wireshark and Telnet to Test ACLs
    27m 22s
13

Network Address Translation (NAT) for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Nov 28, 2016 / 1h 38m

Intermediate • 1h 38m

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Description

Network address translation (NAT) solves the problem of allowing a device with a non-routable, private IP address to get routed to the public Internet by allowing routers to manipulate the packet and segment headers. In this course, Network Address Translation (NAT) for Cisco CCNA 200-125/100-105, you'll learn all about how this works. First, you'll get an introduction to NAT, its history, and why it was developed. Next, you'll spend some time exploring the different types of NAT. Finally you'll learn how to implement and troubleshoot static NAT, dynamic NAT with overload, and port forwarding. By the end of this course, you will be able to implement all the different types of NAT in your environment.

Table of contents
  1. Course Overview
    1m 54s
  2. Introduction to NAT
    14m 11s
  3. Static NAT
    15m 24s
  4. Dynamic NAT with Overload
    25m 10s
  5. Check Your Knowledge
    42m 9s
14

Building and Troubleshooting a Network with ICND1 Skills for Cisco CCNA 200-125/100-105

by Ross Bagurdes

Dec 21, 2016 / 4h 13m

Intermediate • 4h 13m

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Description

The ICND1 exam is a tough exam and extensive studying and reviews are necessary to pass. In this course, Building and Troubleshooting a Network with ICND1 Skills for Cisco CCNA 200-125/100-105, you'll review all the exam topics for the ICND1 exam which will earn one the CCENT certification. First, you'll begin by creating study sheets, where it is encouraged that you write down and memorize before the exam. Next, you'll design a network, incorporating as many of the technical topics as possible from the ICND1 studies. Finally, you'll build and troubleshoot the network, with provided sample configurations to use in your own lab. By the end of this course, you should be ready to take the ICND1 exam to earn your CCENT certification.

Table of contents
  1. Course Overview
    1m 49s
  2. Review and Lab Network Drawing
    26m 18s
  3. Building the ICND1 Lab Network: Routers
    31m 16s
  4. Building the ICND1 Lab Network: Layer 3 Switch and Switches
    40m 55s
  5. Testing and Examining Our Network
    37m 56s
  6. Adding Services
    18m 26s
  7. Troubleshooting Our Network
    1h 3m 16s
  8. ICND1 Exam Tips
    33m 49s

What you will learn

  • IPv4 and IPv6 Subnetting
  • Cisco IOS Router and Switch Operation and Configuration
  • IPv4 and IPv6 Static and Dynamic Routing
  • OSI and TCP/IP Model and Data Encapsulation
  • TCP and UDP Operation
  • Access Control List Operation and Configuration
  • Network Address Translation Operation and Configuration

Pre-requisites

To get the most out of this path, you should have an intermediate level knowledge of Windows 10 (or lower), and have had exposure to troubleshooting PC software and operating system issues.

Knowledge is power

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