Tag: usability

Questions Related to usability

Which of the following is most likely to cause a problem with an unprotected hard disk drive?
technology usability

  1. A magnetic field from a large speaker

  2. X-ray from a nearby monitor

  3. Solar Winds

  4. RFI from a nearby TV

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Correct Option: A

Which is not a reason why compressed air is preferred over vacuuming for cleaning dust from a circuit board? Choose one:
technology usability

  1. Compressed air can generally provide greater cleaning power

  2. Compressed air is less likely to cause ESD damage

  3. Compressed air is less likely to spread dust

  4. None of the above

Show answer
Correct Option: C
Explanation:

To answer this question, the user needs to know the advantages of using compressed air over vacuuming for cleaning dust from a circuit board.

Option A: This option is a valid reason why compressed air is preferred over vacuuming. Compressed air is generally more powerful and can remove more dust and debris than a vacuum.

Option B: This option is also a valid reason why compressed air is preferred over vacuuming. Vacuuming can generate static electricity, which can damage sensitive electronic components. Compressed air is less likely to cause ESD damage.

Option C: This option is incorrect. Vacuuming is more likely to spread dust around the circuit board, while compressed air blows the dust away from the board.

Option D: This option is incorrect. Options A and B are both valid reasons why compressed air is preferred over vacuuming.

Therefore, the answer is: C

What do you use to check for line surges?
technology usability

  1. Polarity tester

  2. LAN analyzer

  3. Line analyzer

  4. Breakout box

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Correct Option: C

Which of the following statements are true? Choose one:
technology usability

  1. When not being used, a 5-1/4" disk should be kept in its protective sleeve

  2. A hard drive should be protected from high magnetic fields

  3. A surge suppresser can help to protect a computer installation from high voltage spikes

  4. When cleaning PC boards, blowing dust away is preferred over vacuuming

  5. All of the above

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Correct Option: E

Which of the following should be used to clean the external plastic cabinets of computers and their peripherals?

technology usability

  1. Acetone

  2. All purpose spray cleaner

  3. Damp cloth with a mild detergent

  4. Wet cloth with a mild detergent

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Correct Option: C

As the system becomes more defined, usability evaluation techniques:
technology usability

  1. Remain the same

  2. Become progressively simpler

  3. Become more complex

  4. None

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Correct Option: C

When is it best to start obtaining user input during a product development?
technology usability

  1. Requirement gathering

  2. Prototyping

  3. Task analysis

  4. Testing

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Correct Option: A

What is most important when developing easy-to-use products?
technology usability

  1. Understanding the users and their tasks

  2. Following the standard guidelines

  3. Making interfaces as consistent as possible

  4. Internal Quality Checking

Show answer
Correct Option: A
Explanation:

To develop easy-to-use products, it is important to understand the users and their tasks.

Option A is the correct answer. Understanding the users and their tasks helps to design products that are intuitive, easy to use, and meet the users' needs. This involves conducting user research, usability testing, and user feedback to ensure the product is user-centered and functional.

Option B, following standard guidelines, is also important, but it is not the most important factor. Standard guidelines provide a framework for designing interfaces, but they do not always consider the unique needs and preferences of the users.

Option C, making interfaces as consistent as possible, is also important, but it is not the most important factor. Consistency helps to make the product predictable and familiar to the users, but it is not enough to make the product easy to use.

Option D, Internal Quality Checking, is not related to making products easy to use. Internal quality checking is important for ensuring the quality of the product, but it does not guarantee that the product is easy to use.

Therefore, the correct answer is: A. Understanding the users and their tasks.

Usability testing for a Web site can be performed with:
technology usability

  1. Hand-drawn designs

  2. Illustrations of navigational controls

  3. Detailed screen designs

  4. All of the above

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Correct Option: D

An Expert Review is:
technology usability

  1. Difficult to perform

  2. Relatively quick to do

  3. Based on one standard set of guidelines

  4. Representative of real users

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Correct Option: B