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Home > Archive > alt.certification.network-plus > January 2003 > Quick question
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| Paul Womar 2002-11-25, 7:24 am |
| I'm taking a bit of online training for the Network+ and have come
across a question where I don't understand the question/answer or it is
wrong. The question is "What does a router do when it recieves a data
packet from another network segment?" and one of the answers that it
says is correct is "It strips the PPP frame encapsulation". As far as
I'm concerned then certain routers will take dialup connections but the
question is talking about normal LAN connections.
I asked one of their staff about this and they took a bit of convincing
before they'd accept it was a bit iffy and I'm not 100% sure they've
really "Passed on my comments" or whatever, anyone have any comments on
this?
--
-> The email address in this message *IS* Valid <-
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| MurliZee 2002-11-25, 1:24 pm |
| I hate it when you come across these questions. Either they don't provide
all the information or assume a configuration. I got a question on the
actual I-net+ exam about a three homed firewall, where the right answer
assumed that the third connection to the firewall is the DMZ.
So I called up comptia about it, and they said the other 3 answers can be
eliminated safely in any such questions. (???) I guess thats why they talk
about the best answer rather than the right answer.
"Paul Womar" <{$PW$}@womar.co.uk> wrote in message
news:1fm7fhe.1akj9un9ebg74N%{$PW$}@womar.co.uk...
> I'm taking a bit of online training for the Network+ and have come
> across a question where I don't understand the question/answer or it is
> wrong. The question is "What does a router do when it recieves a data
> packet from another network segment?" and one of the answers that it
> says is correct is "It strips the PPP frame encapsulation". As far as
> I'm concerned then certain routers will take dialup connections but the
> question is talking about normal LAN connections.
>
> I asked one of their staff about this and they took a bit of convincing
> before they'd accept it was a bit iffy and I'm not 100% sure they've
> really "Passed on my comments" or whatever, anyone have any comments on
> this?
>
> --
> -> The email address in this message *IS* Valid <-
| |
|
| Hi MurliZee,
Did you use a book to study for I-Net+? If so, which one, and would you
recommend it? Thanks,
V
p.s. Difficulty of the test relative to A+ or Net+?
| |
| Patrick Jacobs 2002-11-30, 7:24 am |
| In article <1fm7fhe.1akj9un9ebg74N%{$PW$}@womar.co.uk>,
{$PW$}@womar.co.uk (Paul Womar) wrote:
> I'm taking a bit of online training for the Network+ and have come
> across a question where I don't understand the question/answer or it is
> wrong. The question is "What does a router do when it recieves a data
> packet from another network segment?" and one of the answers that it
> says is correct is "It strips the PPP frame encapsulation". As far as
> I'm concerned then certain routers will take dialup connections but the
> question is talking about normal LAN connections.
>
> I asked one of their staff about this and they took a bit of convincing
> before they'd accept it was a bit iffy and I'm not 100% sure they've
> really "Passed on my comments" or whatever, anyone have any comments on
> this?
Why would you assume that the question is talking about LAN connections?
The question says "network segment". That could be refering to a Local
Area Network or a Wide Area Network. Local or Wide they are both
networks. The answer is correct for a Wide Area Network segment.
Pat Jacobs
--
Pat Jacobs, MCNE, CNI, CCNA, CCAI
My boss said to put a disclaimer on posts. That way everyone knows
these are my ideas and not my employers. So I did.
| |
| Paul Womar 2002-11-30, 8:24 am |
| Patrick Jacobs <psgj@NO.SPAM.mac.com> wrote:
> In article <1fm7fhe.1akj9un9ebg74N%{$PW$}@womar.co.uk>,
> {$PW$}@womar.co.uk (Paul Womar) wrote:
>
> > I'm taking a bit of online training for the Network+ and have come
> > across a question where I don't understand the question/answer or it is
> > wrong. The question is "What does a router do when it recieves a data
> > packet from another network segment?" and one of the answers that it
> > says is correct is "It strips the PPP frame encapsulation".
> Why would you assume that the question is talking about LAN connections?
Primarily because it doesn't say otherwise.
> The question says "network segment". That could be refering to a Local
> Area Network or a Wide Area Network. Local or Wide they are both
> networks. The answer is correct for a Wide Area Network segment.
But it would be incorrect if it were a LAN, so given that it doesn't
specify what type of network we are talking about and it asks what a
router DOES do and not what it MIGHT do then we need to assume some kind
of network to answer the question.
--
-> The email address in this message *IS* Valid <-
| |
| Patrick Jacobs 2002-12-02, 3:24 am |
| In article <1fmgr5z.160spe51okiaw8N%{$PW$}@womar.co.uk>,
{$PW$}@womar.co.uk (Paul Womar) wrote:
> Patrick Jacobs <psgj@NO.SPAM.mac.com> wrote:
>
> > In article <1fm7fhe.1akj9un9ebg74N%{$PW$}@womar.co.uk>,
> > {$PW$}@womar.co.uk (Paul Womar) wrote:
> >
> > > I'm taking a bit of online training for the Network+ and have come
> > > across a question where I don't understand the question/answer or it is
> > > wrong. The question is "What does a router do when it recieves a data
> > > packet from another network segment?" and one of the answers that it
> > > says is correct is "It strips the PPP frame encapsulation".
>
> > Why would you assume that the question is talking about LAN connections?
>
> Primarily because it doesn't say otherwise.
Using your same logic you should then assume that the question is
talking about a WAN connection, because it doesn't say otherwise. The
majority of routers are used to connect a WAN to something. The flaw in
your argument is that you are assuming. You have to consider all
possibilities which is either LAN connection or a WAN connection (notice
I used *OR* rather than "and").
>
> > The question says "network segment". That could be refering to a Local
> > Area Network or a Wide Area Network. Local or Wide they are both
> > networks. The answer is correct for a Wide Area Network segment.
>
> But it would be incorrect if it were a LAN, so given that it doesn't
> specify what type of network we are talking about and it asks what a
> router DOES do and not what it MIGHT do then we need to assume some kind
> of network to answer the question.
But since the question could be referring to a LAN connection or a WAN
connection you are not looking at all the possibilities. Yes it is
incorrect for a LAN, but it is correct for a (LAN or WAN). It is simple
logic. The "or" says it has to be correct for one or the other or both
for the answer to be true. The answer meets the *or* criteria hense
there is no problem with the question/answer. You shouldn't assume one
kind of network and exclude others; you should look at all of the
possibilities.
I'm talking from real-world experience learning the hard way. I've
spent hours beating my head against the wall working on a problem
because I assumed that problem had nothing to do with some part of the
network only to find out later that it did.
respectfully,
Pat Jacobs
--
Pat Jacobs, MCNE, CNI, CCNA, CCAI
My boss said to put a disclaimer on posts. That way everyone knows
these are my ideas and not my employers. So I did.
| |
| Roger Hill 2003-01-20, 10:24 pm |
| I agree with Patrick's statements, A router by it's very definition,
connects
smaller LAN's together to form a WAN.
r h
A+ , studying for N+
"Patrick Jacobs" <psgj@NO.SPAM.mac.com> wrote in message
news sgj-432FA8.04085402122002@nnrp06.earthlink.net...
> In article <1fmgr5z.160spe51okiaw8N%{$PW$}@womar.co.uk>,
> {$PW$}@womar.co.uk (Paul Womar) wrote:
>
> > Patrick Jacobs <psgj@NO.SPAM.mac.com> wrote:
> >
> > > In article <1fm7fhe.1akj9un9ebg74N%{$PW$}@womar.co.uk>,
> > > {$PW$}@womar.co.uk (Paul Womar) wrote:
> > >
> > > > I'm taking a bit of online training for the Network+ and have come
> > > > across a question where I don't understand the question/answer or it
is[co
lor=darkred]
> > > > wrong. The question is "What does a router do when it recieves a[/color]
data[
color=darkred]
> > > > packet from another network segment?" and one of the answers that it
> > > > says is correct is "It strips the PPP frame encapsulation".
> >
> > > Why would you assume that the question is talking about LAN[/color]
connections?
> >
> > Primarily because it doesn't say otherwise.
>
> Using your same logic you should then assume that the question is
> talking about a WAN connection, because it doesn't say otherwise. The
> majority of routers are used to connect a WAN to something. The flaw in
> your argument is that you are assuming. You have to consider all
> possibilities which is either LAN connection or a WAN connection (notice
> I used *OR* rather than "and").
>
> >
> > > The question says "network segment". That could be refering to a
Local
> > > Area Network or a Wide Area Network. Local or Wide they are both
> > > networks. The answer is correct for a Wide Area Network segment.
> >
> > But it would be incorrect if it were a LAN, so given that it doesn't
> > specify what type of network we are talking about and it asks what a
> > router DOES do and not what it MIGHT do then we need to assume some kind
> > of network to answer the question.
>
> But since the question could be referring to a LAN connection or a WAN
> connection you are not looking at all the possibilities. Yes it is
> incorrect for a LAN, but it is correct for a (LAN or WAN). It is simple
> logic. The "or" says it has to be correct for one or the other or both
> for the answer to be true. The answer meets the *or* criteria hense
> there is no problem with the question/answer. You shouldn't assume one
> kind of network and exclude others; you should look at all of the
> possibilities.
>
> I'm talking from real-world experience learning the hard way. I've
> spent hours beating my head against the wall working on a problem
> because I assumed that problem had nothing to do with some part of the
> network only to find out later that it did.
>
> respectfully,
>
> Pat Jacobs
>
> --
> Pat Jacobs, MCNE, CNI, CCNA, CCAI
>
> My boss said to put a disclaimer on posts. That way everyone knows
> these are my ideas and not my employers. So I did.
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