Q80.
b
Section
9-5 Security
Answer
Explanation
Fingerprint authentication is an authentication method that performs matching from either fingertip patterns or features used to identify between fingerprint patterns.
a): Iris authentication uses the pattern of circular lining that adjusts the contraction and dilation of the pupil.
c): Voiceprint authentication uses the wave pattern of voice data.
d): Retina authentication uses the pattern of capillary vessels at the back of the eyeball.
Q81.
d
Section
9-5 Security
Answer
Explanation
Firewall, the point of connection between company networks and the Internet, is equipped
with a packet filtering function that prevents unauthorized access.
Q82.
c
Section
9-1 Human interface
Answer
Explanation
Using images is an effective way to make the content of a Web page visually appealing, but if
high quality (large) images are used, the Web page can be slow to display when accessed
through slower mobile communications. Therefore, it is important to minimize the use of images in order to achieve operability that does not inconvenience users.
Q83.
a
Section
8-3 Software
Answer
Linux is an example of open source software in which the creator publishes the source code
over the Internet, allowing anyone to modify or redistribute the software without infringing
on copyrights.
Q84.
d
Section
9-1 Human interface
Answer
Information accessibility refers to removing barriers that obstruct the elderly and persons with
disabilities from using telecommunications equipment. Examples include the use of text-tospeech software to read information to persons with visual impairments, and enabling persons
with hand impairments to input information without using a mouse or keyboard.
a): Describes a ubiquitous computing environment.
b): Describes a teleworking environment.
c): Describes a mobile computing environment.
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