Robert,
Glad to answer questions so that you can get the answers you need for success! Just let us any other questions we can help answer for you. Also of course, tell a friend! :)
Cordially,
Ronnie Wong
Host, ITProTV

Patrick,
There is that possibility that something like what you've asked about appears on the exam. Traditionally, it has been more about recognition of the proper command to type rather than typing the proper command.
As a way to practice, I would make sure that I know when to use a command and what command to use in context.
Cordially,
Ronnie Wong
Host, ITProTV

Can I just add I disagree.
Ronnie's explanations of IP and subnetting were excellent.
Also if you give the Cisco ones a watch you will see he understands the networking field very well and personally I think he gets the balance right for the target audience.

Alexander,
David is right on in his description! Let me add a little more detail as to you question!
Firewall placement is dependent on how you want to configure the network. Typically, more often today, you can replace the router with the firewall if your local area network has only one path in and one path out of your network. So you may see something like this order:
LAN ------switch-----firewall------ISP (Notice how the firewall separates the trusted network (LAN) from the untrusted (ISP-"Internet").
In your example, you could do several different configurations...but we'll only do a couple...
Each switch could represent a LAN in your network and connect to a port on the firewall, then the firewall is
a direct firewall between the Internet and each of the 5 separate switches.
Switches can be essentially uplinked between all the switches, then only one of the switches is connected to
the firewall. The firewall is then connected to the ISP.
The key to understanding the placement is that the firewall normally will be the only path between the inside of your network to outside of your network and all traffic must flow through it and not be able to bypass it.
Cordially,
Ronnie Wong
Host, ITProTV

I only used ITPro.TV for my Network+.
For the Project+, I also read the book by Sybex.
For the Healthcare IT Technician I just sat for it.
Don explaining IP and Subnetting was instrumental.

I figured it was above my need to know at this point, but when I see a discrepancy....The only dumb question is the one not asked.
Thanks again.

Steven,
Thanks for writing in. At the A+ level, they don't really distinguish too much between LGA and BGA. The exam objectives specifically mention LGA whereas I probably called it BGA from the older iteration of the exam. Thanks for pointing that out!
Cordially,
Ronnie Wong
Host, ITProTV

Thank you for responding back Don; it all makes sense. :)

Cool Thanks Ronnie

Hi Ronnie
Thanks for the quick reply, I kept going over it in my head thinking man I must have it wrong.
Have a great day
Michael

Romona,
I will put it on the list as a request..but we're not planning it yet. Our schedule, now that we've put out the core of our courses is really based on demand! So...if there's a high demand we'll probably do it!
Cordially,
Ronnie Wong
Host, ITProTV

Brian,
You're correct, it's Classless Inter-Domain Routing. Sometimes, we talk faster than we should. Right now, were going back through the entirety of the A+ episodes to make sure they are up to date and hopefully will correct these errors that exists...probably at the same time making other errors. Thanks for helping us out!
Cordially,
Ronnie Wong
Host, ITProTV

Hi,
I was about to ask for the same things. Thanks!

Ok that's great. I'd presume the thinking behind supplying PCIe x1 cards with 'Gigabit' would be to keep production and ultimately retails costs down, knowing the typical home/small office network wouldn't often push the upper bandwidth limits.
Anyway thanks for the quick response, onwards to USB...!

Thanks Don,
nope i was missing the fancy { . couldn't see it on the edge of my console tv! thanks for getting back to me so soon.
-chris

Gary,
The CSMA/CA on a wireless doesn't prevent collisions...I know strange,right. In a wireless, when two devices send out the jamming signal simultaneously, they will hear each other's jamming and do the default behavior--both computers will stop trying to send a jam and wait a random period of time before trying to send a jam again indicating it's readiness to transmit. So no ACK is needed.
Now, even though an ACK is not required before two computers try to resend. In a wireless scenario, transmission collisions are minimized because every transmission requires an ACK. When the sending device doesn't receive an ACK, it will re-transmit the last transmission again. This is because no ACK indicates a failure in the transmission.
Cordially,
Ronnie Wong
Host, ITProTV

Hi Ronnie...you guys are amazing, it's late on Saturday here in Europe, and I get near
instant replies, here as well as email from Tim.
Anyway, thanks, your answer was really helpful.I intend to take A+ end of September and look
forward to seeing the new material.We also (like you) have only satellite internet, so streaming is
probably out, depending on the weather!