Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 25 May 2017, 05:15

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Biometric access-control systems-those using fingerprints,

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Senior Manager
Joined: 19 Feb 2004
Posts: 413
Location: Lungi
Followers: 1

Kudos [?]: 30 [0], given: 0

Biometric access-control systems-those using fingerprints,  [#permalink]

### Show Tags

01 Apr 2004, 08:22
00:00

Difficulty:

(N/A)

Question Stats:

63% (02:18) correct 38% (00:46) wrong based on 20 sessions

### HideShow timer Statistics

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: 19 Feb 2004
Posts: 413
Location: Lungi
Followers: 1

Kudos [?]: 30 [0], given: 0

### Show Tags

02 Apr 2004, 05:37
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.
02 Apr 2004, 05:37
Similar topics Replies Last post
Similar
Topics:
Has anyone use this book and was this book useful? Any 0 08 Dec 2007, 11:41
DNA fingerprinting is a recently-introduced biochemical 4 01 Dec 2007, 01:08
Organization president: The stationery and envelopes used in 3 09 Oct 2007, 10:18
The usefulness of lie detectors cannot be overestimated. 8 13 Sep 2007, 18:40
The following problem deals with using additional 13 09 Aug 2007, 02:49
Display posts from previous: Sort by

# Biometric access-control systems-those using fingerprints,

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.