Alfred is the Linux system administrator for a small network.
He thinks that the network is being compromised, so he installs a network-based
intrusion-detection system (IDS). By installing the IDS, what compromise is Alfred
making?

A.
Alfred’s network gateway will be compromised while the IDS is running.

B.
Alfred’s network may see a decrease in performance as a result of the IDS.

C.
Alfred’s proxy server will not function correctly while the IDS is running.

D.
Alfred’s network may be easier to navigate as a result of the IDS implementation.

Explanation:
The addition of any monitoring tool which has to stop and inspect
packets is going to add to the processing time, and deplete system resources. As a
result, there will be a decrease in performance.
Incorrect Answers:
A: IDS will only inspect packets, and not make any other changes to the normal flow ofthe data.
Therefore the IDS will not compromise the system. If a compromise is detected,then the flow will
change to notify of the intrusion and even take some action but thiswill not compromise the
gateway.
C: IDS will only inspect packets, and not make any other changes to the normal flow ofthe data.
Therefore the IDS will not affect the proxy server. If a compromise is detected,then the flow will

change to notify of the intrusion and even take some action but thiswill not prevent the proxy
server from functioning.
D: Navigation of the network should not change, and will not be any easier. It may beharder if
navigation of the network is identified by the IDS as a intrusion.