OK, I now think the right answer is B and D also. Jenny, Pamela, and Howard
have convinced me.
As Howard said, Answer C, "frequent adjacencies table recalculation" is
even more BS than Answer D, "excessive link-state entries in the link-state
table." There's no such thing as an adjacency table. There is a neighbor
table, but it doesn't get recalculated unless a directly-connected DR or
BDR goes down, which doesn't happen that often.
In Answer D, they probably just meant link-state database, which is another
term for "topology database," as Pamela pointed out. And Jenny and others
pointed out that as the number of networks in an area increases, the number
of LSAs increases, but the number of adjacencies each router has doesn't
necessarily increase. So we should be looking for a right answer that talks
about scaling links, not adjacencies. So D is right. B is also marginally
right. A is definitely wrong. C is probably wrong too.
Anyway, it's probably silly to be arguing over which answer is more
wrong! &;-) I think the only thing we can conclude is that you would not
have been able to find the answer by going to Cisco's search engine and
this discussion was very worthwhile.
Priscilla
> > > > > ----- Original Message -----
> > > > > From: "Ibrahim" <[EMAIL PROTECTED]>
> > > > > To: <[EMAIL PROTECTED]>
> > > > > Sent: Tuesday, November 14, 2000 11:52 PM
> > > > > Subject: Single area with large number networks.
> > > > >
> > > > >
> > > > > >
> > > > > > Hi, this question is really confuse me :
> > > > > > What are two possible problems that can occur when a single
> > > OSPF area
> > > > > > includes a large number of networks?
> > > > > > a. more reachable errors
> > > > > > b. frequent routing table recalculation
> > > > > > c. frequent adjacencies table recalculation
> > > > > > d. excessive link- state entries in the link- state table
> > > > > > The frequent routing table recalculation is true, but what
> > > > > about the other
> > > > > > one ?
> > > > > >
> > > > > > thanks,
> > > > > > Ibrahim
> > > > > >
> > > > > >
________________________
Priscilla Oppenheimer
http://www.priscilla.com
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