Welcome to Jeremy’s IT Lab. This is a free, complete course for the CCNA 200-301. If you like these videos, please subscribe to follow along with the series. Also, please like and leave a comment, and share the video to help spread this free series of videos. Thanks for your help. Let’s get started. In this lab you will use what you learned in Day 2’s lecture video to connect these network devices together. You can select various types of connections from the bottom left here. We’ll be using copper straight-through, copper cross-over, and fiber connections. Note that packet tracer doesn’t differentiate between single-mode and multimode fiber, but try to think about which type would be appropriate when you use a fiber connection. So, I’ll start here in the bottom left. First, the connection between SW3 and PC1. For the purpose of this lab, we’re assuming that Auto MDI-X is disabled or not supported on the devices, so we have to think about whether to use a straight-through or cross-over copper cable. PCs transmit data on pins 1 and 2, and receive data on pins 3 and 6. Switches are the opposite, they transmit data on pins 3 and 6 and receive data on pins 1 and 2. So, we can use a straight-through cable to connect all of these PCs, as well as SRV1, to the switches. Select straight-through cable here, and connect the PCs to their appropriate switch. PC1 to SW3..connect the fastethernet0 interface on the PC, which is the PC’s network interface card, to any of the fastethernet interfaces on the switch. Next is PC2 to SW4...PC3 to SW7...and SRV1 to SW8. Now we’ve got a bunch of switches to connect together. Devices of the same type require crossover cables, or else the transmit pins will be connected to the transmit pins, and the receive pins will be connected to the receive pins, which will not allow data to be sent successfully between the devices. So, let’s connect these switches, SW3 to SW1...SW1 to SW2...SW4 to SW2...SW7 to SW5... SW5 to SW6...and last SW8 to SW6. Next let’s connect these switches to the routers. Routers are like PCs, they transmit on pins 1 and 2 and receive on pins 3 and 6. So let’s connect them to the switches with straight-through cables. SW1 to R2...SW2 to R2...SW5 to R4...and SW6 to R4. Now it’s time to connect the routers. Since they are the same device type, we need to use crossover cables if we use copper cabling. Take care to look at the distances here. Since R1 and R2 are just 50 meters apart, we can use copper cabling, which permits distances up to 100 meters. So I’ll connect R2 to R1 with a crossover cable. R1 and R3 are 3 kilometers apart, so clearly we will have to use a fiber-optic connection here. Although packet tracer doesnt differentiate between single-mode and multimode, which is appropriate here? Well, mutli mode fiber allows distances up to 550 meters, which is more than UTP, but not enough for this connection. Single-mode allows much longer distances, 30 kilometers, 40 kilometers, even more, so in this case we would use single-mode fiber. Let’s connect them, note that this symbol here is used for fiber optic connections in packet tracer, notice the two spaces, for both the transmit and receive cables. Finally, R3 and R4 are separated by 250 meters. That’s too long for a UTP cable, but also not so long that we need single-mode fiber. A multimode fiber cable would be sufficient. Let’s connect them together...Okay, the devices are now all connected. That’s all for this lab. Thank you for watching. That's all for this video. If you want to show your support, please subscribe to the channel, like the video, leave a comment, and share the video with anyone else studying for the CCNA. I accept donations via cryptocurrency or Patreon via the links in the description. I'm also a Brave verified publisher and accept BAT, or Basic Attention Token, tips via the Brave browser. Click the link in the description to check out Brave, a fast and sleek browser that pays you to surf the Internet.