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On Tue, 12 Jan 2010 09:13:01 +0000 Neil Stone wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 12/01/2010 09:06, Gordon Henderson wrote: > > On Tue, 12 Jan 2010, Neil Stone wrote: > > > >> -----BEGIN PGP SIGNED MESSAGE----- > >> Hash: SHA1 > >> > >> I was going through an online examy/trainingy thing this evening > >> and was presented with this.. > >> > >> In a star topology, what happens when a workstation loses its > >> physical connection to another device? > >> A) The ring is broken, so no devices can communicate > >> B) Only that workstation loses its ability to communicate > >> C) That workstation and the device it's connected to lose > >> communication with the rest of the network. > >> D) No devices can communicate because there are now two > >> unterminated network segments > >> > >> > >> I got it wrong with an answer of "C".. Can anyone explain to me > >> why this might be ?? > > > > I'd go B, but I think it's a crap question.. > > > > I suspect when they're talking 'star' and 'workstation' they mean > > switched Ethernet, so answer A is bogus, although I have built token > > ring networks that have physically appeared as a star back to a > > central hub - each 'leg' being a duplex cable and the hub could > > enabled a leg when the device on the leg sent a signal back to say > > it's was alive (actually by placing 5V on the wires to activate a > > relay in the hub!) That was *very* expensive token ring technology > > - it's no wonder it died a death. > > > > D is bogus because it's a star. > > > > C - Hm. In star, the only device it's connected to is the central > > hub/switch device, so talking about a device it's connected to, not > > mentioned in the question is what really makes me thing it's a bogus > > question. > > > > > >> PRN--PC----LAN----PC--PRN > >> > >> PRN--PC- -LAN----PC--PRN > >> > >> umm.. the printer and pc both loose network !! > > > > The question made no mention of a priner, so I'd not think about it > > for the answer.. > > > >> halp !! (or should I log a bug report ?) > > > > File a "this is a badly worded question" report... > > > > Gordon > > > > I would tend to agree.. CompTIA here I come.. Comptia Network+? Leave it well alone. You'll learn more about networks just doing the first semester of the CCNA syllabus, let alone the other 3. (But then, I'm biased as I'm a CCNA instructor). Grant. -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html