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352-001 · Question #697
352-001 Question #697: Real Exam Question with Answer & Explanation
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Design Considerations
Question
Refer to the exhibit. ACME Mining has four data centers in Santiago, Cape Town, Mumbai, and Beijing. They are full-mesh connected via a 400 Mb/s EVP-LAN. A 1-TB file transfer occurs daily via FTP between the Santiago and Mumbai data centers. When testing, this data transfer took an "unexpected and outrageous" 6 hours, with an average transfer rate of 47 KB/s. The network team provided this information: - LAN bandwidth usage was below 5% at both data centers during transfer. - WAN bandwidth usage was between 20-30% at both data centers during transfer. - The only QoS on WAN is 200 Kb/s strict priority configured for other types of traffic. - There is no QoS on LAN. - The ping RTT average between data centers is 378 milliseconds. Which action improves the file transfer rate?
Exhibit
Options
- AClassify the FTP transfer and use the strict priority queue on the WAN
- BUse TFTP instead of FTP
- CApply WAN optimization techniques at both data centers
- DUse SFTP instead of FTP
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Topics
#WAN optimization#FTP throughput#QoS#TCP performance