A. The signatures available are built into the IOS code.
B. Toupdate signatures youneed to install a new IOS image
C. To activate new signatures you download a new Signature DefiitionFile （SDF） from Cisco’s web site
D. Loading and enabling selected IPS signatures is user configurable
E. Cisco IOS onlyprovides Intrusion Detection functionality
F. Cisco IOS-IPS requires a network module installed in your router running sensor software

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