Refer to the exhibit. What is the effect on the trust boundary of configuring the command mls qos trust cos on the switch port that is connected to the IP phone？（）
A. Effectively the trust boundary has been moved to the IP phone.
B. RTP will be used to negotiate aCoS value based upon bandwidth utilization on the link.
C. The switch is rewriting packets it receives from the IP phone and determining theCoS value.
D. The switch will no longer tag incoming voice packets and will trust the distribution layer switch to set theCo
E. The host is now establishing theCoS value and has effectively become the trust boundary.
查看答案
Whichofthefollowingstatementsdescribethecharacteristicoflinkstateroutingprotocols?（）
A. Theexchangeofanadvertisementistriggeredbyachangeinthenetwork.
B. Allroutersexchangeroutingtableswitheachotherinamultipointnetwork.
C. Packetsareroutedbasedupontheshortestpathtothedestination.
D. Pathsarechosendependingonthecostefficiencyfactor.
EveryrouterinanOSPFareaiscapableofrepresentingtheentirenetworktopology.
F. OnlythedesignatedrouterinanOSPFareacanrepresenttheentirenetworktopology.
YouarethenetworkadministratorforThenetworkconsistsofa singleDNSdomainnamed. YoureplaceaUNIXserverwithaWindowsServer2003computernamed TestKing1. TestKing1istheDNSserverandstartauthority(SOA)fortestking.com.AUNIX servernamedTestKing2isthemailserverfortestking.com. YoureceivereportsthatInternetuserscannotsende-mailtothetestking.com domain.Thehostaddressesareshowninthefollowingwindow. YouneedtoensurethatInternetuserscansende-mailtothetestking.comdomain. Whatshouldyoudo?（）
Addan_smtpservicelocator(SRV)DNSrecordforTestKing2.
B. Addamailexchange(MX)DNSrecordforTestKing2.
C. Addanalias(CNAME)recordformail.testking.com.
D. EnabletheSMTPserviceonTestKing1.
Refer to the exhibit. Which three statements are true about the voice VLAN configuration of the Catalyst switch？ （）
A. The packet priority received from a device that is connected to the phone will be unmodified.
B. The packet priority received from a device that is connected to the phone will be overridden.
C. Incoming CoS values in packets from the connected phone will be left unmodified.
D. Packets without aCoS value that is set by the phone will be set to a value of 5.
E. Incoming CoS values in packets from the connected phone will be reset to a value of 5.
F. Packets without aCoS value that is set by the phone will be set to the default CoS value.
在开放发展政策下，作为中共党员，应该做到（）。
A. 加强党性修养
B. 提高自身的能力
C. 更好地去善于“引进来”
D. 敢于“走出去”
微信支付 
支付宝支付