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Okay, let's take a look at some sample test questions about motherboards. Now, keep in mind you won't see these exact questions on the exam, but you will see things that are similar, and again what I'm trying to help you with here is the thought process: how to work through the answers on these questions. Look at this one. Which of the following best describes a motherboard stand out? Now I want to warn you about something. This word right here, best describes, best, okay. Best describes the motherboard stand out. Your choices on the answer may not be exactly what describes the motherboard stand outs. You're going to choose the best one, okay. In this instance, it's pretty straightforward. First of all, the first choice ah, a stand out is at the distance that the front connectors protrude from the board? Ahhhh, no. We already know that. That's a, that's an easy one. That's not it. Second possibility: could the answer be the distance the motherboard must be from the power supply? Um, no. We know that's not correct. I hope you know that's not correct. The third one: the height of the motherboard expressed in millimeters. Ummm, maybe, maybe not if I hadn't been watching the video. This one is actually pretty easy. Uh, metal connectors that attach the motherboard to the case, and obviously that is our correct answer. Now this is one you just simply had to know what a stand out was to be able to figure this out and there's not any way, some of these seem obvious to me that they're not correct, but obviously if you don't know what a stand out or a motherboard is, if you're totally new to PCs, any one of these could have been the right answer, but ah, if you watched ah the previous videos, this was a give me. Metal connectors that attach the motherboard to the case. Next question. Lauren's motherboard experienced burn in failure, what must be done to repair it? So, she's got a motherboard that has experienced a burn in failure. What do I have to do to repair it? Now, first of all, let's talk about a burn in failure. Again, if you watched ah, the other excellent videos produced by VTC in this series on motherboards, right, then ah, what do we have to do to repair that? Well, we know that a burn in failure means the motherboard has failed, okay. And ah, so the motherboard's got to be replaced. Ah, so upgrading the BIOS? Upgrading the BIOS on a failed motherboard not only is impossible, it's useless. Replace the CPU? Eh, we want to take our good CPU off of there, but replacing the CPU is not going to help. Ah, replace the motherboard. There we go. It's probably C, right? Or D, none of the above. We know the answer is C, a burn in failure has killed the motherboard, or the motherboard has failed and we'll have to replace it. One more. Which form factor is most widely used in today's PCs? And look at our choices, and I'll put them all up here at once so you can kind of see what they're trying to do to you here. ATX, BTX, CTX, or AT? Well, again, if you've watched the excellent video series here, ah you know that AT, we'll start at the bottom here. AT ah, is obsolete. It's the one that came out with the original PC, not used anymore. CTX doesn't exist, BTX is one of the newer, it is the newest ah form factor in use, ah, however, it's not the most widely used. It, it probably will be at some point in the future, but it's not right now. By the way, just for your information, BTX is the coolest operating motherboard because of the way it's laid out, but ah, ATX is our answer. ATX is the most widely used form factor. Now I don't remember if I pointed this out in the ah form factors video, but ah, form factors, there are proprietary form factors out there, so some of these companies who create these really small PCs, ah, they're desktop things that look like, you know, I mean they all, they kind of stack up like a book in a book shelf, you know, with a bunch of books and so forth; those things may be proprietary. But as far as the form factor standards that's what we're, they're really going to be concerned about on the exam. So a little useless trivia there. Again, be careful when you answer these questions. Read them a couple of times, make sure you understand what they're asking, and then work through the answers. Throw out the things that obviously are wrong, get it at least down to a 50-50 if you have to guess, ah you want to go 50-50 on that. So anyway, there's your your sample test questions on motherboards. I hope they help.