|
Author |
Message |
|
TAGS:
|
|
|
Senior Manager
Joined: 19 Feb 2004
Posts: 477
Location: Lungi
Followers: 1
Kudos [?]:
1
[0], given: 0
|
Biometric access-control systems-those using fingerprints, [#permalink]
 01 Apr 2004, 08:22
Question Stats:
0% (00:00) correct
100% (00:00) wrong based on 1 sessions
Biometric access-control systems-those using fingerprints,
voiceprints, etc., to regulate admittance to restricted areas-work by
degrees of similarity, not by identity. After all, even the same
finger will rarely leave exactly identical prints. Such systems can
be adjusted to minimize refusals of access to legitimate access-
seekers. Such adjustments, however, increase the likelihood of
admitting impostors.
Which of the following conclusions is most
strongly supported by the information above?
(A) If a biometric access-control system were made to work by
identity, it would not produce any correct admittance decisions.
(B) If a biometric access-control system reliable prevents impostors
from being admitted, it will sometimes turn away legitimate access
seekers.
(C) Biometric access-control systems are appropriate only in
situations in which admittance of impostors is less of a problem than
is mistaken refusal of access.
(D) Nonbiometric access-control systems-based, for example, on
numerical codes are less likely than biometric ones to admit
impostors.
(E) Anyone choosing an access-control system should base the choice
solely on the ratio of false refusals to false admittances.
|
|
|
|
|
|
|
Senior Manager
Joined: 05 Feb 2004
Posts: 417
Location: USA
Followers: 1
Kudos [?]:
1
[0], given: 0
|
B...........!!
|
|
|
|
|
|
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4441
Followers: 10
Kudos [?]:
81
[0], given: 0
|
Agree with B
_________________
Best Regards,
Paul
|
|
|
|
|
|
Manager
Joined: 27 Feb 2004
Posts: 245
Location: illinois
Followers: 1
Kudos [?]:
1
[0], given: 0
|
B for me here...
|
|
|
|
|
|
Director
Joined: 23 Aug 2003
Posts: 512
Location: In the middle of nowhere
Followers: 1
Kudos [?]:
7
[0], given: 0
|
B it is..
Vivek.
_________________
"Start By Doing What Is Necessary ,Then What Is Possible & Suddenly You Will Realise That You Are Doing The Impossible"
|
|
|
|
|
|
Senior Manager
Joined: 19 Feb 2004
Posts: 477
Location: Lungi
Followers: 1
Kudos [?]:
1
[0], given: 0
|
yes B
Because making the system fool proof might call for readjusting the system so as to make it comply with very stringent standards. Stringent standards would mean no margin for errors. But we know that the system works on the principle of similarity and not identity because " After all, even the same finger will rarely leave exactly identical prints". The system might reject even legitimate users in case of an increased deviation from pre-established standards for that particular user.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Moderators:
metallicafan, rajeevrks27, souvik101990, PTK, MacFauz, noboru, kissthegmat, carcass, willigetmylifeback, mikemcgarry, doe007, Vercules, Legendaddy, tuanquang269, RaviChandra, Marcab, Narenn
|
close
