Refer to the exhibit.
The link between Core-1 and Core-2 shown in the exhibit fails, and some users lose connectivity. What should the network administrator do to prevent this issue in a situation such as this?
A. Configure BPDU protection on all Core-2 ports.
B. Enable IP routing on Core-2.
C. Create routes to 10.1.10.0/24 and 10.1.11.0/24 through 10.1.1.3 on Core-2.
D. Extend VLANs 10 and 11 on all switch-to-switch links.
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I don’t see the issue.
In my opinion the network should work properly after failure (and STP rebuild).
However
A – BPDU protection on core switch doesn’t make sense.
B – Core-1 is default for all vlans, so we don’t need routing on Core2
C – Access-1 has probably no routing at all, so it doesn’t make sense
D – this option is at least good practice.