Join Mike Meyers for an in-depth discussion in this video Routers, part of CompTIA A+ Exam Prep (220-901) Part 5: Networking.
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- [Voiceover] This is the inside of a router.…Now, routers, by definition…interconnect broadcast domains.…So, this particular router…has three network cards,…connected to three different broadcast domains.…Notice that each one of the network cards…inside the router has an IP address…and that's what's listed right there in front of you.…Now, what's interesting is that…this router on the far left…is actually connected to the internet.…So, we call this a Wide Area Network.…
The other two connections are to plain, Local Area Networks.…The most important thing to remember about a router…is that routers don't care where packets come from;…only where they go to.…So, we'll have packets going in…from all of these different interconnections.…Our job is to send them out in the right place…and we do that using a routing table.…Now, I want you to look at this routing table very closely.…Notice that there are three columns.…
One says IP address, the other one is Subnet Mask SM,…and the last one is Interface.…These are the instructions that the router uses…
The CompTIA A+ 220-901 exam is comprised of six key parts. The fifth, networking, is covered by this course. Instructor Mike Meyers provides an introduction to networking by exploring cables, network IDs, IP addresses, and ports. He explains how to deal with a DNS, configure a router, and set up a wireless network while applying security standards. He also discusses Internet connections, including dial-up, broadband, wireless, and more.
Note: The six courses designed for the CompTIA A+ (220-901) exam preparation include core processing, core hardware, peripherals and building a PC, displays and printers, networking, and laptops and mobile devices.
We are now a CompTIA Content Publishing Partner. As such, we are able to offer CompTIA exam vouchers at a 10% discount. For more information on how to obtain this discount, please download these PDF instructions.
- Working with network cables
- Establishing a local area network (LAN)
- Communicating using ping and ipconfig
- Dealing with a DNS
- Configuring routers
- Setting up a wireless network
- Troubleshooting internet connections
- Connecting to a desktop remotely
- Transferring files and selecting file sharing options
Skill Level Beginner
1. Essentials of Networking
2. Local Area Networking
Introduction to TCP/IP15m 4s
Network IDs and subnet mask11m 53s
Dynamic IP addressing9m 59s
Special IP addresses4m 38s
Ping and ipconfig7m 15s
TCP, UDP, and ICMP3m 51s
Port numbers4m 37s
Working with connections6m 24s
Understanding DNS12m 5s
Dealing with DNS8m 19s
Windows naming9m 2s
Configuring routers10m 37s
Advanced router configuration14m 47s
3. Wireless Networking
4. The Internet
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