[Year 12 IT Apps] Exam Revision Crossword
Daniel Stanley
Daniel.Stanley at flinders.vic.edu.au
Mon Oct 22 09:06:58 EST 2007
Good morning all,
I have uploaded this crossword to the VITTA resources site.
Hope you find it useful,
Daniel
http://www.vitta.org.au/resources/
Daniel Stanley
IT Co-ordinator for
Carrum Downs Campus
Flinders Christian Community College
e: daniel.stanley at flinders.vic.edu.au
w: 03 97850000
m: 0423960800
f: 03 97735710
________________________________
From: itapps-bounces at edulists.com.au
[mailto:itapps-bounces at edulists.com.au] On Behalf Of Daniel Stanley
Sent: Wednesday, 17 October 2007 9:57 AM
To: Year 12 IT Applications Teachers' Mailing List
Subject: [Year 12 IT Apps] Exam Revision Crossword
Hi all,
Find attached a hot potatoes crossword I built focussing on the
key terms for the exam. My kids were getting a bit sick of past exam
papers and me talking at them.
Feel free to use. I have attached the solution as well for your
reference.
If there are any glaringly horrible errors please let me know.
Kind regards,
Daniel Stanley
IT Co-ordinator for
Carrum Downs Campus
Flinders Christian Community College
e: daniel.stanley at flinders.vic.edu.au
w: 03 97850000
m: 0423960800
f: 03 97735710
"Two roads diverged in a wood and I,
I took the one less travelled by,
And that has made all the difference."
The Road not Taken - Robert Frost
________________________________
From: itapps-bounces at edulists.com.au
[mailto:itapps-bounces at edulists.com.au] On Behalf Of Kent Beveridge
Sent: Tuesday, 16 October 2007 10:40 AM
To: Year 12 IT Applications Teachers' Mailing List
Subject: RE: [Year 12 IT Apps] Modems and Routers
thread..
Kevork,
Just thinking back to the days of VAX and DG machines
when multiplexing was all the go! PC's dont seem to need tha
KB.
Kent Beveridge,
I.T. co-ordinator
St. Brigids Catholic Sec. College
Horsham
email.. kbeveridge at stbc.vic.edu.au
|<3|\|7 b3\/3r1D93 ? ;-)
Wishes and Eggs, one you make and one you break! A bit
like promises.....
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You must not disclose or use the information in this email if you are
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________________________________
From: itapps-bounces at edulists.com.au on behalf of Kevork
Krozian
Sent: Tue 10/16/2007 9:18 AM
To: Year 12 IT Applications Teachers' Mailing List
Subject: Re: [Year 12 IT Apps] Modems and Routers
thread..
Hi Kent,
A multiplexor at the exchange ( DSLAM) is simply an
aggregation device for multiple DSL input lines from customers.
Were you thinking of some other multiplexor ?
Regards
Kevork
>>> "Kent Beveridge" <kbeveridge at stbc.vic.edu.au>
15/10/2007 4:36 pm >>>
Scuse my ignorance, but where would a multiplexor fit
here, or wouldnt it? Yep, I know its not the question, but now I just
got curious!
This conversation thread is actually an interesting one
given all our different perspectives/backgrounds.
Kent Beveridge,
I.T. co-ordinator
St. Brigids Catholic Sec. College
Horsham
email.. kbeveridge at stbc.vic.edu.au
|<3|\|7 b3\/3r1D93 ? ;-)
Wishes and Eggs, one you make and one you break! A bit
like promises.....
"This email and any attachments may be confidential.
You must not disclose or use the information in this email if you are
not the intended recipient. If you have received this email in error,
please notify us immediately and delete the email and all copies. The
School does not guarantee that this email is virus or error free. The
attached files are provided and my only be used on the basis that the
user assumes all responsibility for any loss, damage or consequence
resulting directly or indirectly from the use of the attached files,
whether caused by the negligence of the sender or not. The content and
opinions in this email are not necessarily those of the School."
________________________________
From: itapps-bounces at edulists.com.au on behalf of Kevork
Krozian
Sent: Mon 10/15/2007 3:09 PM
To: Year 12 IT Applications Teachers' Mailing List
Subject: Re: [Year 12 IT Apps] VITTA ITA exam 2 - my
ideas of errata
Hi Mark and Russell,
I would add a few more cents here to the discussion.
The primary role of a router is " path determination and
switching"
meaning it decides which interface an incoming packet
has to be sent out
and how to transfer
- switch - the packet to that outbound interface.
Various modules
within routers ( eg. ADSL module, WAN modules ) can be
used to provide
connectivity to a WAN without a modem. Also, routers can
provide
security functions through firewall services, that is
not their primary
role.
So, a router connects LANs to either other LANs or WANs
- it is a
connectivity device for different networks. Compare with
a switch which
is a connectivity device for devices WITHIN a network.
Broadband modems ( DSL and cable modems ) use complex
waveforms to
carry digital data ( http://en.wikipedia.org/wiki/Modem
) therefore
still modulate/demodulate and therefore are analog in
nature. The term
broadband refers to the ability to carry multiple
signals ( voice, data,
TV ) as opposed to baseband which carries one type of
signal.
A DSLAM ( Digital Subscriber Line Access Multiplexer )
is found at the
exchange which allows aggregation of incoming ADSL
signals to connect to
the digital network (internet ) backbone. So, despite
the publicity an
ADSL digital service is only digital up to the DSLAM
after which it is
analog up to the customer premises. That is still better
than dial up no
doubt.
Cable modems act like a bridge between a customer's LAN
and the coax
cable network of the provider though they can provide
higher layer
functions such as routing and other tasks
http://en.wikipedia.org/wiki/Cable_modem . The point is
there is no
sign of fibre optic media here.
As in past years, to all readers, Cisco Networking
Academy ( a VET
subject ) is the way to go if you wish to formally learn
more about this
fascinating area of IT.
Best Wishes
Kevork
>>> Russell Edwards
<edwards.russell.t at edumail.vic.gov.au> 15/10/2007
2:22 pm >>>
Hi Mark, I agree with most of what you have said, just a
couple of
minor points
On 15/10/2007, at 1:36 PM, Mark Kelly wrote:
> Question 1
> Which of the following enables several LANS to connect
over a WAN?
> Suggested answer: D. Router.
>
> A router protects a LAN from the outside world, but
its role is not
> principally to enable communications. I suspect the
best answer
> would be a modem.
The primary role of the router is indeed to enable
communications
between two or more networks. It may include a firewall
of some sort
(=protection from the outside world) but need not. A
modem is not
necessary as you may have a data link that doesn't
require modulation/
demodulation-- though you'd be hard pressed to find one
that could
offer distances that classify as "wide area"!
> Question 3
> Which type of backup uses two sets of backup media and
backs up the
> most recent changes on the second media?
> Suggested answer: B. Differential.
>
> This can*t be right., The question is very odd. Two
sets of
> backup media? From
http://www.backuptool.com/incremental%
> 20backup.htm...
I suppose what they're getting at is that incremental
backups might
use more than twos set of media. But in fact, the terms
are about
_what_ you backup, _when_ -- not _where_ you put the
data (i.e.
media).
> A modem is, for most people today, a digital device
for ADSL or
> cable internet that has no modulation or demodulation
happening!
> The question should have referred to analogue modems
if it wanted
> this answer.
No, ADSL and cable are still analog modems. ADSL goes
over copper
line just as dialup, simply using a much higher (analog)
bandwidth
than plain dialup and avoiding the voice band. Cable
modems (afaik)
use an optic fibre data link so again this is a modem,
as a carrier
wave (in this case a light wave) is modulated to
transport data.
Even wireless, 3G or satellite internet will rely on a
pair of modems
(with an electromagnetic wave as a carrier) as part of
the link, even
though the term isn't usually used in reference to them.
cheers
Russell Edwards
Whittlesea Secondary College
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