Why is Testing Necessary

In what way can testing be part of Quality Assurance(QA)?

• It ensures that requirements are detailed enough

• Testing reduces the risk of poor software quality

• It ensures that standards in the organization are followed

• It measures the quality of software in terms of number of executed test cases

Which one of the statements below describes the most common situation for a failure discovered during testing or in production?

• The product crashed when the user selected an option in a dialog box

• The wrong version of a compiled source code file was included in the build

• The computation algorithm used the wrong input variables

• The developer misinterpreted the requirement for the algorithm

Which of the following is an example of a failure in a car cruise control system?

• The developer of the system forgot to rename variables after a cut-and-paste operation

• Unnecessary code that sounds an alarm when reversing was included in the system

• The system stops maintaining a set speed when the radio volume is increased or decreased

• The design specification for the system wrongly states speeds

Which of the following is a defect rather than a root cause in a fitness tracker?

• Because the author of the requirements was unfamiliar with the domain of fitness training, he therefore wrongly assumed that users wanted heartbeat in beats per hour

• The tester of the smartphone interface had not been trained in state transition testing, so missed a major defect

• An incorrect configuration variable implemented for the GPS function could cause location problems during daylight saving times

• Because the designer had never worked on wearable devices before, she as designer of the user interface therefore misunderstood the effects of reflected sunlight

A phone ringing momentarily distracts a programmer, causing the programmer to improperly program the logic that checks the upper boundary of an input variable. Later, during system testing, a tester notices that this input field accepts invalid input values. The improperly coded logic for the upper boundary check is:

• The root cause

• The failure

• The error

• The defect

A tester participated in a discussion about proposed database structure. The tester identified a potential performance problem related to certain common user searches. This possible problem was explained to the development team. Which of the following is a testing contribution to success that BEST matches this situation?

• Enabling required tests to be identified at an early stage

• Ensuring processes are carried out properly

• Reducing the risk of fundamental design defects

• Reducing the risk of untestable functionality

Match the keyword terms to the correct definitions:

I. Something incorrect in a work product

II. A person’s mistake

III. An event where the system does NOT perform correctly

• I. is a defect, II. is an error, III. is a failure

• I. is an error, II. is a defect, III. is a failure

• I. is a failure, II. is an error, III. is a defect

• I. is a defect, II. is a failure, III. is an error

Which of the following could be a root cause of a defect in financial software in which an incorrect interest rate is calculated?

• Insufficient funds were available to pay the interest rate calculated

• Insufficient calculations of compound interest were included

• Insufficient training was given to the developers concerning compound interest calculation rules

• d) Inaccurate calculators were used to calculate the expected results

What is NOT a reason for testing?

• To enable developers to code as quickly as possible

• To reduce the risk of failures in operation

• To contribute to the quality of the components or systems

• To meet any applicable contractual or legal requirements

Which statement about quality assurance is true?

• Quality assurance and testing are the same

• Quality assurance includes both testing and root cause analysis

• Testing is actually a quality control activity rather than a quality assurance activity

• Quality assurance does not apply to testing