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Home > Archive > CCNP > August 2001 > question
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| szsincer 2001-08-21, 9:01 pm |
| There's a question bothering me.
Do you have some ideas? buddy.
In contrast to shared Ethernet, switched Ethernet on a Catalyst switch______ and_______.
(Choose two.)
a.provides greater access to bandwidtha. connects directly to end users or other switches
b. uses software to set up and maintain a filtering database
c. has fewer utilities, which makes management more difficult
d. is usually limited to a maximum of 16 ports and eight spanning treese. associates a MAC: source address with a set of ports for transmission | |
| depamo 2001-08-21, 9:30 pm |
| Well here goes my shot at this--
It will provide some degree of greater bandwidth to an end user since broadcasts are not taking up all the bandwidth if you are connected to a switch but you can connect to end terminals, other switches or hell, anything with an RJ-45 talking the right protocol such as a hub??
Uses software to setup and maintaina filtering database - MAC's are held in local NVRAM and comparison is done through a processor but if you are filtering for security or using dynamic vlan's, yes you have software on a server out there telling you what you need to know.
Utilities? Now that is a little weird, switches are so basic that their operation is trivial compared to a router, even with VTP, ISL and all the other jumbo.
As for the 8 ports, my switch has 24+2 and all can support spanning trees for the first 1024 vlans?? (that one I am guessing on). I know that it is much bigger then 8 spanning trees allowed. Depending on the type of spanning tree protocol you use, the cisco implementation has one spanning tree for each VLAN, IEEE standard uses one tree for all VLAN's.
From that, I gues that I would choose B depending on what in the hell they were talking about.
Where did you get this question?? | |
| szsincer 2001-08-21, 9:59 pm |
| I am prapering the 504, and my study partner gave the question, I don't know where the question come from. when I said my answer is ab, he said it's ad. so I didn't understand.
in my opinion, switch network isn't usually limited to a maximum of 16 ports, it could be 24 or 36 or 48. so d isn't right.switch network has utilities, which makes management more easier, like cisco work 2000. so c isn't right.
anyway, thanks a lot
I will do my best to praper the damn test. | |
| dave4791 2001-08-22, 12:23 am |
| I actually got a question pretty simlar on both switching and support exam , i put ab (if i remember correctly) . Got 965 on support so am pretty sure that i got it write ??? | |
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| A and B, I think.
C is not corrent. Catalyst switch has various management utilities.
D is not correct. It means bridge, not switch. | |
| muckfish 2001-08-23, 8:23 pm |
| Hi guys .....
I thought that switches run on ASICS whereas bridges utilise software based switching .... Pls clarify .... | |
| depamo 2001-08-24, 6:13 pm |
| ASICS is what you will find on a Layer 3 switch for doing the Light Stream or ROSM (route once, switch many) which in the end still requires a router (on a stick).
For Distribution layer switches they can do all the functions of a regular switch but can handle MLS within the broadcast domains so long as the traffic stays within the VLAN's that are defined. Once they move between VLAN's, that requires a Layer 3 device, either a RSM or an external router. Once the router switches the first packet and the settings are correct, the switch will program the ASIC to switch the rest of the matching traffic depending on how you have it defined. This is where the magic of MLS can save your Campus Network as switches operating in this mode can switch almost a factor of 10 times the traffic for the same price of a comparable router.
Some new routers from Lucent are supossed to be able to do all the router functions in ASICS now (not to mention this cool stuff with light specturm switching).
Oh yeah, my mistake on the number of Spanning Trees that a Catalyst switch can support, it can support a Spanning Tree for the first 64 VLAN's. | |
| mkhan 2001-08-25, 12:18 am |
| C & D seem to be a bogus Answer, probably A & B are correct!
Cheers | |
| szsincer 2001-08-26, 10:33 pm |
| Thank you all, guys |
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