Given the context and the choices, I would have to pick B and D as well.
The routing table recalculation isn't really a great answer either. Suppose
your links never go down, and once that last router is turned on and all the
SPF's have been done. This sucker would remain pretty quiet.
But... given that links do go down, routers go off line and back on, etc,
yes - routing table changes. So B
D is to me the answer of last resort, one of those things Cisco loves in
their tests. Let's look at the other answers:
More reachable errors. Huh? What is a "reachable" error?
Frequent adjacencies table updates - now this one has the ring of truth
about it.......
Excessive link state entries in the link state database.......this rings
true also
So of the two that ring true, which one is more correct? I would choose the
excessive link state entries because in my reading from various resources I
have seen expressed many times router capacity, memory requirements,
processing power. This last one falls into that category. I don't ever
recall reading about adjacency table updates, but I won't say it doesn't
happen. Show ip ospf neighbor does sho adjacencies. but you are adjacent to
only a small number of routers, no matter what the size of the network.
So, A and D
Test taking 101 - answering Cisco questions the Cisco way
Chuck
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Cthulu, CCIE Candidate
Sent: Tuesday, November 14, 2000 5:33 AM
To: [EMAIL PROTECTED]
Subject: Re: Single area with large number networks.
IMHO, B is the best answer as link failures in the area will cause
recalculations.
D is a possible answer; however, "excessive" is a subjective word: OSPF
will generate the number of LSAs necessary to build its tables and the
picture of the network: it will not go beyond the number needed to do so.
On the other hand, as a human, I may find a large number of LSAs
"excessive".
HTH,
Charles
D is kind of subjective, but it
> > 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
> > >
> > >
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