ISC Exam Questions

An attack that can be perpetrated against a remote user’s callback access control is:

An attack that can be perpetrated against a remote user’s callback access control is:

A.
Redialing.

B.
Call forwarding.

C.
A maintenance hook.

D.
A Trojan horse.

Explanation:
The correct answer is Call forwarding. A cracker can have a person’s call forwarded to another
number to foil the callback system. Answer “A Trojan horse” is incorrect because it is an example of
malicious code embedded in useful code. Answer “A maintenance hook” is incorrect because it
might enable bypassing controls of a system through a means used for debugging or maintenance.
Answer Redialing is incorrect because it is a distracter.