Refer to the exhibit.
A network architect has designed the topology shown in the exhibit. The Gigabit links between
distribution layer and the core uses OM3 grade multi-mode fiber between 100m and 150m long.
The solution is for an enterprise customer whose employees use mostly HTTP-based applications
and has medium utilization needs.
What should the network architect do to resolve a potential issue?
A.
Add more bandwidth between each pair of distribution layer switches
B.
Add more links between each modular switch at the access layer and its distribution layer
switch
C.
Replace the modular switches at the access layer with switches that support stacked meshing
D.
Remove the distribution layer since it is not needed in this environment
Explanation:
Correct answer is B
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Why B? Maybe C.
From study guide:
Access Layer
Oversubscription normally ranges between 2:1 and 24:1 rates, but it could be higher (like
48:1) in certain situations. In most cases, a 10:1 rate is enough
Distribution Layer
In this layer, the oversubscription rate between the access-distribution links and the
distribution-core link cannot be too large. A rate of 2:1 (but not much more) is usually
acceptable.
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