Part 3 of 4: MD-100 Windows 10 is Available

MD-100

Overview

That’s right – another part of this fun MD-100 series is available. This part has some super-cool Hands-On Labs that allow you to practice and experiment with multiple Windows 10 machines in our own safe and sandboxed Cloud-based lab environment. No more getting yelled at for breaking a company workstation trying some new Windows 10 features!

Course Details

Here are the Nugget titles for you in this skills-based training:

Microsoft Windows 10: Connecting Devices

  1. Configure Client IP Settings
  2. Configure Mobile Networking
  3. Configuring the VPN Client
  4. Troubleshooting Networking
  5. Configuring WiFi Profiles 
  6. Configuring Remote Assistance and Quick Assist
  7. Configure Remote Desktop Access
  8. Enable PowerShell Remoting 

Hands-On Labs for MD-100

6 of your 8 Nuggets contain accompanying Hands-On Lab exercises. These permit you to watch me make configurations and then try these for yourself on real Windows 10 systems. After performing the skills demonstrated in the Nugget, you can re-launch your lab environment and experiment with your own variations of the technology configurations! Remember, you cannot break anything, so be sure to have fun!

For the two Nuggets without Hands-On Labs, you will watch Anthony Sequeira perform detailed demonstrations of the following:

  • Configure Mobile Networking – watch as Anthony configures the Cellular Networking feature of a new Windows 10 Galaxy Book 2. This nifty little Microsoft Surface Go competitor is a slick little machine.
  • Configuring WiFi Profiles – watch your instructor configure key parameters of Windows 10 to ensure that WiFi connectivity works just the way you want it to.

The MD-100 Exam

As I write this post, the exam has left BETA from Microsoft! Woohooo! Here is the official page for the exam:

https://www.microsoft.com/en-us/learning/exam-md-100.aspx

If you are interested in seeing the topics of both the MD-100 and MD-101 exams in an easy to view fashion, check out the post on my blog here. As usual, the GOLD exam topics did not change from the BETA:

Finally! New Windows 10 Exams in Beta!

Cisco Discovery Protocol (CDP)

In this post, we will examine the Cisco Discovery Protocol in some detail. In the next post, we will tackle LLDP.

CDP is a Layer 2, media-independent, and network-independent protocol that runs on Cisco devices and enables networking applications to learn about directly connected devices nearby. This protocol facilitates the management of Cisco devices by discovering these devices, determining how they are configured, and allowing systems using different network-layer protocols to learn about each other.

NX-OS

While it is a Cisco invention, this protocol is so important to so many companies that many of them have adopted it for those devices as well. If the devices do not actively send the protocol, they can at least understand it when receiving it from true Cisco devices.

One reason you might have heard of companies disabling CDP on devices would be a result of security concerns. It is not necessarily a great idea to have network devices describing their properties and even their capabilities to other devices on the network.

Cisco Discovery Protocol is enabled by default. Each device configured for Cisco Discovery Protocol advertises at least one address at which the device can receive messages and sends periodic advertisements to the well-known multicast address 01:00:0C:CC:CC:CC. Devices discover each other by listening at that address. They also listen to messages to learn when interfaces on other devices are up or go down.

Advertisements contain time-to-live information, which indicates the length of time a receiving device should hold Cisco Discovery Protocol information before discarding it. Advertisements supported and configured in Cisco software are sent, by default, every 60 seconds on interfaces that support Subnetwork Access Protocol (SNAP) headers. Cisco devices never forward Cisco Discovery Protocol packets. Cisco devices that support Cisco Discovery Protocol store the information received in a table. Information in this table is refreshed every time an advertisement is received, and information about a device is discarded after three advertisements from that device are missed.

Cisco Discovery Protocol Version 2 provides more intelligent, device-tracking features than those available in Version 1. One of the features available is an enhanced reporting mechanism for more rapid error tracking, which helps to reduce network downtime. Errors reported include mismatched native VLAN IDs (IEEE 802.1Q) on connected ports and mismatched port-duplex states between connected devices. Messages about reported errors can be sent to the console or to a logging server.

Remember, to disable CDP on the entire device, use no cdp run. To disable CDP on a select interface, use no cdp enable under that interface.