单项选择题
A. The Pre-Block ACL is overwritten when a blockingaction is initiatied by the sensor
B. The blocking ACL entries generated by the sensor override the Pre-Block ACL entries
C. The Pre-Block ACL entries override the blocking ACL entries generated by the sensor
D. The Pre-Block ACL is replaced by the Post-Block ACL when a blocking actionis initiated bythe sensor
E. You can not configure a Pre-Block ACL when configuring IP Blockingon your sensor
多项选择题 WhichtwoIPmulticastaddressesbelongtothegrouprepresentedbytheMACaddressof0x01-00-5E-15-6A-2C？（）
单项选择题 AnetworkadministratorisusingaLANanalyzertotroubleshootOSPFrouterexchangemessagessenttoALLOSPFROUTERS.TowhatMACaddressarethesemessagessent？（）
单项选择题 AccordingtoRFC3180，whatisthecorrectGLOPaddressforAS456？（）