Which of the following statements is true about Multi-Layer Intrusion Detection Systems (mIDSs)?

Which of the following statements is true about Multi-Layer Intrusion Detection Systems
(mIDSs)?

A.
Decreases consumed employee time and increases system uptime

B.
Increases detection and reaction time

C.
Increases response time

D.
Both a and c

Explanation:

Reference:
http://www.symantec.com/connect/articles/multi-layer-intrusion-detectionsystems(economic
advantages, first para)