单项选择题 Refer to the exhibit. What mechanism should be used to increase the bandwidth availability and optimize the link usage throughout the network for voice traffic？（）

多项选择题 AutoQoSDiscoveryhasrunontheAcmeEntertainmentCompany’snetworkforseveraldaysandhasproducedthesuggestedpolicyshownintheexhibit.Acmewishesto1）allowmorebandwidthforbrowser-typetrafficbecauseitisthejobofmanyoftheiremployeestobebrowsingthewebasapartoftheirjob，and2）toallowgreaterbandwidthforfiletransfersbecausetheyexpectanupcomingsurgeinmovieuploadsanddownloads.Whichtwostatementswouldyoureplacetobestaccomplishthosegoalswithoutsacrificingvoicequality？（）

多项选择题 WhatarethreeconsiderationswhenchoosingtheQoSmodeltodeployinanetwork？（）