单项选择题
What is high availability？（）
A. redundant infrastructure B. clustering of computer systems C. reduced MTBF D. continuous operation of computing systems
单项选择题 WhatisthepurposeofIGMPinamulticastimplementation？（）
单项选择题 Whichcontentnetworkingdeviceallowsbandwidthconfigurationsettingssothatstreaming contentwillnotinterferewithothernetworktraffic？（）
单项选择题 WhichtechnologyallowscentralizedstorageservicestobesharedacrossdifferentVSANs？（）
