Alarms and notifications are generated by IDSs to inform users when attacks are detected. The most
common form of alarm is:

A.
Onscreen alert

B.
Email

C.
Pager

D.
Icq

Explanation:
Alarms and notifications are generated by IDSs to inform users when attacks are detected. Most
commercial IDSs allow users a great deal of latitude in determining how and when alarms are
generated and to whom they are displayed. The most common form of alarm is an onscreen alert or
popup window. This is displayed on the IDS console or on other systems as specified by the user
during the configuration of the IDS. The information provided in the alarm message varies widely,
ranging from a notification that an intrusion has taken place to extremely detailed messages
outlining the IP addresses of the source and target of the attack, the specific attack tool used to gain
access, and the outcome of the attack. Another set of options that are of utility to large or
distributed organizations are those involving remote notification of alarms or alerts. These allow
organizations to configure the IDS so that it sends alerts to cellular phones and pagers carried by
incident response teams or system security personnel.