400-007: Cisco Certified Design ExpertDemo

Question

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Refer to the exhibit. ACME Mining has four data centers in Santiago, Cape Town, Mumbai, and Beijing, connected in a full mesh through a 400 Mb/s EVP-LAN. The company plans to deploy a new mission-critical application with these requirements:

Cluster heartbeat: 2 MB/s continuous (250 KB/s)
Cluster heartbeat maximum one-way latency: 100 ms

The following are the current ping-test results among the four data centers:

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Which pair of hosting data centers can host the new application?

A Mumbai and Beijing
B Cape Town and Mumbai
C Cape Town and Beijing
D Santiago and Mumbai
E Santiago and Beijing
F Santiago and Cape Town

Explanation

Cape Town and Mumbai meet the latency requirement because their measured round-trip ping times are 185 ms and 176 ms, corresponding to approximately 92.5 ms and 88 ms one-way. The required continuous heartbeat bandwidth is also well within the available 400 Mb/s link capacity.

400-007: Cisco Certified Design ExpertDemo

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