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Question :-

A network administrator is expanding part of the data center in a hospital network. Three new racks of equipment need to be added, with an HP Comware 5820 series switch at the top of each rack The Comware 5820 series switch needs to connect back to two core Comware 12500 switches using 10Gb connections. The distance between the three racks and the Comware 12500 switches is approximately 40 meters: however, the network administrator is concerned about electromagnetic and other types of interferences to electrical signals. Which solutions protect against interference and are cost-effective for this scenario? (Select two.)
10GBase-2R
10GBase-SR
10GBase-ER
10GBase-LX4
10GBase-T

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