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| AnalogKid 2001-05-21, 8:44 pm |
| Scored 816 and felt I was done after the first 30 questions. Got hammered in Bridging/Switching, Network Management, and Network Protocols and scored 60% or less in those. I got 100% on Routing and WAN protocols. EE55 was right on for the commands and the easy questions. There were quite a few where I was just sitting there staring at the screen wondering what in the heck they were asking for and/or which right or what seemed wrong answer to choose. Anyhow, needless to say I am very p!$$ed right now. | |
| CiscoKid 2001-05-21, 9:39 pm |
| I'm sorry to hear that you didn't pass. You only missed it by 3 questions. I know when I took mine I felt the same way. I kept track of the questions I knew I was going to miss. When I got to 9 I started to sweat big-time. When 11 rolled around I started to panic. But when you retest I'm positive you will pass it. Good Luck!!! | |
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| AnalogKid,
Try to shake it off. Take a couple of days off, hit the areas that you need to review, and then go knock it down. Good luck! | |
| Trouble Man 2001-05-21, 11:07 pm |
| Don't worry, you'll get it this time.
What study materials are you using? You might consider a new source. I had transcender and Sybex and they hit you pretty hard in the areas you mentioned that you had problems with. I cannot comment on Exam Essentials, because I only went through their demo tests once. | |
| dougla2 2001-05-22, 12:36 am |
| 'Cause I have been following along your same lines of study and thought that I was ready. I wish someone could cut through the BS and say with some certainty which practice tests really cover what you need to know. I have been trying all the demos, just scored 100 on the Boson but bombed big time with the Transcender. Got 3 semesters netacad, Todd and Dummies digested but not entirely memorized. I feel like a decent practice test is all I need, but the Transcender demo just didn't ask questions that looked familiar. If the cheet sheets have really got the actual questions, I am tempted, even though the idea is abhorrent. The thing is, travel to the test center and the cost of the exam pressures me to succeed, perhaps enough to cross the line and buy those questions. Any guidance in selecting the best testing practice would be appreciated, not just by me but by all the folks like Analog here who just missed his cert, maybe because he had the misfortune to draw the test with the obscure stuff, the same stuff that is easy to look up when you need it, but not used enough to be top-of-mind. Now I'll encapslate my little diatribe in a connectionless protocol frame and throw it up to the board. Any more advice Analog? | |
| AnalogKid 2001-05-22, 9:52 am |
| I used Sybex Virtual lab which is ok for practising the commands and seeing how it looks, Transcender 1.0a, EE55, and the ICND book. My advice is if you are doing well on the Practise tests, go through your books and read all the fine print. I am sure the answers I missed are in my book somewhere. I wish I could post some examples of the questions that threw me for a loop so I can see where I went wrong, but I only had to agree not to about 5 times before and after the test. | |
| AnalogKid 2001-05-22, 12:06 pm |
| Is there any way to ask questions about the questions without violating the agreement? Although I am finding a few of the answers some aren't explained well enough in the book. | |
| Trouble Man 2001-05-22, 12:15 pm |
| I think it's alright as long as you don't ask the "exact" same question with the "exact" same answer. What do you think all those practice exams you pay for do. They take braindumps, reword them, and then feed them to you.
Ask away!! | |
| AnalogKid 2001-05-22, 12:20 pm |
| Ok then, Can someone please explain broadcast addresses for a Class B address with a class C subnet mask.
EX 173.3.5.160 255.255.255.224 | |
| vr2zjw 2001-05-22, 12:34 pm |
| Time for some subnet calculation.
5 bit mask let for the host mean 32 host address space. The address start from 173.3.5.160 to 173.3.5.191. So the broadcast is
173.3.5.191
Agree?
Put it in binary for the last octet
Address: 101|00000
mask: 111|00000 | |
| Trouble Man 2001-05-22, 12:38 pm |
| Easy one.
A really quick formula for finding out what your first subnet is 256-(subnet mask). So your first network would be 256-224, which is 32. So now you know all your networks are going to be multiples of 32 with 30 hosts a piece. Here are your subnets:
It starts at 172.3.1.32 by multiples of 32 until 172.3.1.192 then it would go to 172.3.2.0 172.3.2.32 until 172.3.2.192 and so on. When you get to 173.3.5.0 it goes:
173.3.5.32 173.3.5.64 173.3.5.96 173.3.5.128 173.3.5.160 173.3.5.192
I stopped there, because that's all you need. So your address is on subnet 173.3.5.160 and the next is 173.3.5.192, so the broadcast address is 173.3.5.191.
I gotta leave for a few hours, so somebody else will have to pick it up if you need more explanation. | |
| Trouble Man 2001-05-22, 2:46 pm |
| Whoa, hold on.
I was in a hurry when I answered that. Now I'm back home. I left some info incomplete. First the subnets start at 172.3.0.32 and so on until 172.3.0.224 then 173.3.1.0 then 173.1.32 and so on in multiples of 32 until 173.3.1.224 then 173.3.2.0 and so on all the way until 173.3.255.192 as the last subnet.
If you were confused about a Class B having what looks like a Class C subnet. All that happened is that it kept borrowing host bits all the way until the fourth octet. So 11 bits were stolen from the hosts to make more subnets.
I gave the right answer before but an incomplete explanation. If you need a more in depth post about this let me know. | |
| AnalogKid 2001-05-22, 3:48 pm |
| Ok I am getting it now, I was figuring it out wrong for some reason. Is ICMP connection-oriented? I had couple of Qs on ICMP that were a far cry from "ICMP are for error and control messages". I know about echo and echo reply but what else? My book says "the other functions are beyond the scope of this book" but I got hit beyond the scope.
Thanks for letting me pick your brains. As I said before, read the fine print. There are some questions that are coming from one small sentence in the ICND book. | |
| Trouble Man 2001-05-22, 4:02 pm |
| To be connection-oriented, a protocol must establish a connection before data is past. In other words A says "Hey, you there?" then B says "Yeah, I'm here," then A says "I'm gonna send you something," then B says "Go ahead," then data is sent, then A says "I'm finished," then the connection is tore down.
The technical term for establishing connection-oriented communication is "Synchronize, Negotiate Connection, Synchronize, Acknowledge, Connection Established, Data Transfer." That's testable by the way.
When a host sends out ICMP it just sends it out without checking to see if the other end is there first (think ping). What it finds on its way there it sends back to you.
So you can see that ICMP isn't connection-oriented.
Hope that helped. | |
| AnalogKid 2001-05-22, 4:17 pm |
| Thats what I thought. I wish I remeberd what the other options were, they didn't seem right either. Two of the answers I knew right away and had no clue on the 3rd. I may have gotten this Q right since I didn't choose that one...LOL | |
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| I noticed that you have your N+ how did that compare to the CCNA exam?
Has it made a difference in your current salary?
Does your employeer pay for you to get certified or are you doing it on your own?
I have been getting ready to sit for the CCNA, but I figured to test my skills I could knock the N+ out of the way. Let me know what you think. | |
| AnalogKid 2001-05-22, 5:15 pm |
| It doesn't even compare. CCNA is much more in depth. I smoked the N+ exam and am having a hard time with this. I do recommend you getting your N+ before you even try the CCNA. That will get you the basics of networking then you can go more in depth with the routing and switching of the CCNA.
As for my salary, I just got my first networking job a few weeks ago. I left my very stable job of 10 years and took a small paycut, but the hands on experience is better than any cert you can get. They even let me study when we are slow like I am now. I don't think they will pay for my future studies but there are enough resourses out there where I can study on my own and pick the brains of our IT guys when I just don't get something. Neither of our IT guys have any router experience and we only have one Cisco 2600 here. What I am hopeing is when I am up for a review and a raise they will see how hard I am working at learning all I can and give me a little boost up the pay scale. | |
| AnalogKid 2001-05-22, 5:41 pm |
| Just for the sake of knowing, if asked what rate the standard ethernet configuration efficiency for a half-duplex transmission is, would I say 50 or 60% ?? | |
| chunder 2001-05-22, 5:54 pm |
| just going out on a limb here, but, unless there's some wacky trick to how it's configured, i'd say 50%. half = 50%. but who knows... it's probably one of them wack things... will research it later. | |
| Trouble Man 2001-05-22, 5:58 pm |
| It's actually a little less than 50% because of collisions and broadcasts. By the way, know what happens during a collision for the test. If you need to know I'll give the "book" answer. | |
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| study where you know u screwed up. then go and take it again | |
| AnalogKid 2001-05-23, 9:22 am |
| The book answer is 50-60% but I think I saw them both.  | |
| chunder 2001-05-23, 9:52 am |
| quote:
The book answer is 50-60% but I think I saw them both.
indeed. page 165 (Cisco Press: ICND). so, you are hinting that this may be a testable situation? or would it be more like, Full-Duplex is 100% efficient whereas Half-Duplex is 50-60%? |
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