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14. Question 14 Company XYZ is a defense contractor. They need to make sure that only authorized people enter their facilities. They have decided to

14. Question 14

Company XYZ is a defense contractor. They need to make sure that only authorized people enter their facilities. They have decided to install a new biometric authentication station outside the gate that protects the parking lot. Employees will need to authenticate in order to be let in. Answer questions 14-20 about Company XYZ.

How should the security system be designed?

The designer should sit at the gate during the busiest time of morning and evening and watch people come in and out

The designer should choose the biometric authentication mechanism that has the most support in her preferred programming language

The designer should look for which biometric authentication systems are easiest to implement

The designer should rely on her own experience entering the gate to decide which authentication scheme will work best.

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Question 15

1 point

15. Question 15

If someone tries to authenticate and they are not recognized, the system designer is considering adding a delay before they can try to authenticate again. Which is the best delay?

10 minutes

2 hours

No Delay

10 seconds

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Question 16

1 point

16. Question 16

A survey shows that a surprisingly large percentage (25%) of employees ride motorcycles to work, the standard protective gear of helmets, leather jackets, and gloves. Which of the following would be a poor biometric tool based on this fact?

Voice recognition

Face recognition

Free gestures

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Question 17

1 point

17. Question 17

The designer has decided to use a free gesture system to authenticate people, but the hardware for a gesture-detection system that is weatherproof is very expensive. As she is eating lunch in her office, she is contemplating the next step. What should she do?

Her lunch's pizza box is about the size of the gesture reading hardware. She should paint the box and position it at the gate where the real tool would go, and then ask people to pretend to authenticate as they come in so she can get information about the process. If people don't like it, she can revise the design

She should make the system work on her computer with hardware she has and test it in her lab. If it works there, she should buy the expensive system and implement it at the gate.

She should buy the hardware and implement the system, followed up by training for employees who have trouble. Since she is a designer and security expert, she knows that this system is the best way to go.

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Question 18

1 point

18. Question 18

The free gesture system is implemented, and all employees have stopped by the IT office to teach the system what their authenticating gesture is by entering it on a touch screen in the office. A couple weeks later, people who drive SUVs start complaining that they sometimes need to enter their gesture 4 or 5 times because it is not recognized (probably because they are making it from an odd angle their cars are high up above the device where they enter their gesture). What type of usability problem is this?

User Preference

Memorability

Efficiency

Speed

Learnability

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Question 19

1 point

19. Question 19

What is a good solution for the SUV drivers?

SUV drivers should, instead, be required to type in a password on a touch screen at the gate (similar to an ATM touchscreen)

When they teach the system what their authenticating gesture is, they should do it from their car rather than in the IT office so there is a better match between their "true" gesture and what they enter when they drive in

Nothing the SUV drivers need to learn to work with the system

SUV drivers should be given additional training on how to properly enter a gesture

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Question 20

1 point

20. Question 20

After a while, the IT office complains to the designer that people keep coming in having forgotten their gestures. This is a problem because traffic backs up when a person can't remember the gesture, it takes a lot of time to reset the gesture, and people are trying to get around the system by closely following the person in front of them through the open gate. The designer decides that from now on, when people create new gestures, it should be the person's normal signature. Which usability aspect does this improve?

User Preference

Efficiency

Learnability

Speed

Memorability

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Question 21

1 point

21. Question 21

Answer questions 21-24 about Company 123.

Company 123 is creating a social network designed to compete with Facebook. They begin by copying Facebook's interface exactly, except they change the name and make it green instead of blue. How does this help usability?

It doesn't

It is faster

It lets users rely on existing mental models

It is less taxing on memory

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Question 22

1 point

22. Question 22

Company 123 writes a privacy policy that is written in easy-to-read language at an 6th grade reading level and is exactly 1 page long when printed and that covers all the major points of their privacy mainly, that no data is ever shared except with people the user lists in their own privacy settings. Which of these five pitfalls does their policy avoid:

Emphasizing configuration over action

Lacking coarse-grained control.

Obscuring actual information flow.

Inhibiting established practice.

Obscuring potential information flow.

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Question 23

1 point

23. Question 23

Is a 12-year old in 7th grade able to give informed consent to this policy?

Yes

No

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Question 24

1 point

24. Question 24

A designer at Company 123 is considering changing their login interface so the password box shows the last character typed for 1 second before changing it to the standard star or dot that prevents over the shoulder attacks. They hope this will help people spot when they have made a typo as they enter their password. How should she determine if this is a good change to make?

Show both versions to all the designers at Company 123 and have them choose which is the best

Run an A/B test and see which version has fewer failed logins

Run a full usability study on the site with new and old version of the login system,

Show users both versions and ask them to vote

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Question 25

1 point

25. Question 25

True or false: error messages should limit technical detail in favor of plain language.

True

False

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