Which of the following is the most reliable authentication device?
A.
Variable callback system
B.
Smart Card system
C.
Fixed callback system
D.
Combination of variable and fixed callback system.
Explanation:
The smart card, an intelligent token, is a credit card sized plastic card embedded
with an integrated circuit chip. It provides not only memory capacity, but computational capabilityas well. The self-containment of smart card makes it resistant to attack as it does not need to
depend upon potentially vulnerable external resources. Because of this characteristic, smart cards
are often used in different applications which require strong security protection and authentication.
Option B is the most correct option, this is because Callback systems are not considered very
reliable in the CISSP examination, Smart cards can also provide 2 mode authentication.
“Caller ID and callback options are great, but they are usually not practical because they require
users to call in from a static phone number each time they access the network. Most users are
accessing the network remotely because they are on the road and moving from place to place.”
Pg. 428 Shon Harris: All-In-One CISSP Certification Guide.
Another strange question. What does a smart card have to do with call back systems? Call backs apply to faxing and analog systems. Smart cards are for identification.
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