Which Cisco security solution offers protection against "day zero" attacks?
Cisco IOS IPS
Cisco IOS Firewall
Cisco Traffic Anomaly Detector
Cisco Adaptive Security Appliance
Cisco Security Agent
The Cisco Security Agent (CSA) software protects server and desktop endpoints from the latest threats caused by malicious network attacks. CSA can identify and prevent network attacks that are considered unknown or "Day Zero"-type threats. CSAs are packed with many features, including rewall capabilities, intrusion prevention, malicious mobile code protection, operating- system integrity assurance, and audit log consolidation. (Reference: CCDA Official Exam Certification Guide 3rd)