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QID: NA623 no explanation given
#1
Any help appreciated - I don't get why the answer isn't through the T1 link

[Image: 2exsi2h.jpg]
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#2
Link-state routing protocols use link bandwidth in the best route calculation and the route through T3 has a higher bandwidth available, so it has the least path cost.

T1 = 1.544 Mbps
FastEthernet = 100 Mbps.
T3 = aggregation of 28 T1 circuits = 44.736 Mbps
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#3
@ all: which answer is the correct answer from the options, please?
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