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CTFL_SYLL_4.0 · Question #168

You are testing a system that is used in motor vehicles to warn the driver of an obstacle when re- versing. Output is provided by a series of LED lights (green, yellow, and red), each illuminated…

The correct answer is D. Object is within 5 metres of the vehicle and the sensitivity mode is switched "on", resulting in no. Rule 5 in the decision table indicates that when the object is within 5 metres of the vehicle and the sensitivity mode is switched "on", no LED is lit. This matches the conditions and actions described in the decision table provided, ensuring that only the red LED is lit when…

Test Analysis and Design

Question

You are testing a system that is used in motor vehicles to warn the driver of an obstacle when re- versing. Output is provided by a series of LED lights (green, yellow, and red), each illuminated based on clearly defined conditions. The following summary describes the functionality:

  • Object within 10 metres, green LED lit.
  • Object within 5 metres, yellow LED lit.
  • Object within 1 metre, red LED lit.
  • Setting sensitivity mode to "ON" will result in only the red LED being lit when the object is within

1 metre. The following decision table describes the rules associated with the functioning of this proximity warning system:

Which intended functionality is tested by Rule 5 in the decision table?

Exhibit

CTFL_SYLL_4.0 question #168 exhibit

Options

  • AObject is within 5 metres of the vehicle and the sensitivity mode is switched "off", resulting in the
  • BObject is within 5 metres of the vehicle and the sensitivity mode is switched "on", resulting in the
  • CObject is within 5 metres of the vehicle and the sensitivity mode is switched "off", resulting in no
  • DObject is within 5 metres of the vehicle and the sensitivity mode is switched "on", resulting in no

How the community answered

(37 responses)
  • A
    14% (5)
  • B
    11% (4)
  • C
    5% (2)
  • D
    70% (26)

Explanation

Rule 5 in the decision table indicates that when the object is within 5 metres of the vehicle and the sensitivity mode is switched "on", no LED is lit. This matches the conditions and actions described in the decision table provided, ensuring that only the red LED is lit when the sensitivity mode is on and the object is within 1 metre, otherwise no LED is lit.

Topics

#decision table testing#conditions and actions#black-box techniques#test case derivation

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