Technological alchemy
Which protocol can turn the name of a web site into an IP address?
What network configuration is commonly used to convert a number of internal IP addresses to a single external IP address?
A misconfigured application can cause connectivity problems, even when the network is operating perfectly. In this video, you’ll learn about the settings for SMTP, IMAP and POP mail protocols, FTP clients, and browser proxy settings.
CompTIA A+ 220-702: 3.1 – Troubleshooting Mail, FTP, and Proxy Settings Read More »
Which Windows command line feature can provide you with the IP address of your default gateway?
The fundamental languages used over our computer networks are a standard set of protocols that are used around the world. In this video, you’ll learn about protocols and the set of standards associated with TCP/IP. You’ll also learn the essentials of TCP/IP and how subnetting can be used to build today’s modern networks.
CompTIA A+ 220-701: 4.1 – Protocols and Addresses Read More »
You’re troubleshooting a network issue, and you’ve identified the IP address of a suspicious workstation. What Windows command line utility can query the remote device and return the NetBIOS name?
Often, some of our most irritating network problems are related to logical configuration settings. In this module, you’ll learn how to check port speed, duplex, VLAN configurations, DNS settings, and much more.
CompTIA Network+ N10-004: 4.7 – Troubleshooting Common Logical Connectivity Issues Read More »
As human beings, we’re accustomed to referring to web sites and file servers by name (i.e., www.google.com, www.microsoft.com, etc.). Of course, our computers must have an IP address to properly communicate to the rest of the world. What command line utility can be used to resolve an IP address from a host name?
What utility resolves an IP address from a web site name? Read More »
IP addressing is much more than subnet masks and binary math. In this video, you’ll learn about supernetting, public vs. private IP addressing, network address translation, and automatic IP addressing technologies.
CompTIA Network+ N10-004: 1.4 – Addressing Technologies Read More »