These controls can be used to investigate what happen after the fact. Your
IDS may collect information on where the attack came from, what port was use, and other details that could be used in the investigation steps.
"Preventative control" is incorrect. Preventative controls preclude events or actions that might compromise a system or cause a policy violation. An intrusion prevention system would be an example of a preventative control.
"Recovery control" is incorrect. Recover controls include processes used to return the system to a secure state after the occurrence of a security incident. Backups and redundant components are examples of recovery controls.
"Directive controls" is incorrect. Directive controls are administrative instruments such as policies, procedures, guidelines, and aggreements. An acceptable use policy is an example of a directive control.
References:
CBK, pp. 646 - 647

EAL 1 : functionally tested EAL 2 : structurally tested EAL 3 : methodically tested and checked EAL 4 : methodically designed, tested and reviewed EAL 5 : semifomally designed and tested
EAL 6 : semifomally verified design and tested
EAL 7 : fomally verified design and tested.
Source: Common Criteria Version 2.1, Part 2 page 53 through 67.
Additional source:
HARRIS, Shon, All-In-One CISSP Certification Exam Guide, 3rd Edition, McGraw-Hill/Osborne,
2005, page 312.

Explanation/Reference:
Explanation:
A common problem when using vibration detection devices for perimeter control is false alarms. For example, someone could lean on the fence and trigger an alarm.
Perimeter Intrusion Detection and Assessment System (PIDAS) is a type of fencing that has sensors located on the wire mesh and at the base of the fence. It is used to detect if someone attempts to cut or climb the fence. It has a passive cable vibration sensor that sets off an alarm if an intrusion is detected.
PIDAS is very sensitive and can cause many false alarms.
Incorrect Answers:
B: Vibration detection devices for perimeter control are not commonly defeated by electronic means.
Therefore, this answer is incorrect.
C: Signal amplitude being affected by weather conditions is not common problem when using vibration detection devices for perimeter control. Therefore, this answer is incorrect.
D: It is not true that vibration detection devices for perimeter control must be buried below the frost line.
Therefore, this answer is incorrect.
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 487