T1 and E1 technologies built some of the largest legacy WANs in the world. In this video, you’ll learn about T1/E1 and the faster T3/E3 technologies.
CompTIA Network+ N10-005: 3.4 – T1/E1 and T3/E3/DS3 Read More »
We use many different copper connectors to network our computers, and some of them are more common than others. In this video, you’ll learn about some of the copper connectors we use for networking our devices.
CompTIA Network+ N10-005: 3.2 – Copper Connectors Read More »
You have just built a new mail server for your organization that previously was using a cloud-based service. Unfortunately, you are finding that external sites are timing out when attempting to send mail to your new SMTP server. What port should you enable in your firewall to allow your mail server to properly communicate?
You are building out a new room containing a lab of desktop computers. When you connect the Ethernet network cables, you see no lights on the network port. You also notice that you cannot connect to any network resources. Which of these would most likely be true?
In this Study Group; multimode vs. singlemode, OSI layers, Class D and E addresses, firewalls and DMZs, NAT, and exam structure.
Professor Messer’s CompTIA Network+ Study Group – March 2012 Read More »
You need to configure your router so that all of your internal IP addresses appear as a single IP address to the rest of the Internet. What type of configuration do you need to make in your router to accomplish this?
One of your Windows 7 users does a lot of work from home, but the Windows 7 UAC secure desktop is causing problems with the remote desktop software. Which of these would be the best way to remove the secure desktop while keeping the UAC functionality?
When you start your computer, your Windows desktop does not appear. Instead, you get a blank screen with this message at the top; “NTLDR is missing.” Which of these would be the most likely cause of this issue?
