Question 1

Which of the following statements describing the consequences of specifying test conditions at a detailed level is NOT true?

Options :

A : In an environment where the test basis is continuously changing, it is recommended to specify test conditions at a detailed level in order to achieve a better maintainability

B : The specification of test conditions at a detailed level can be effective when no formal requirements or other development work products are available

C : The specification of test conditions at a detailed level can require the implementation of an adequate level of formality across the team

D : For system testing, the specification of test conditions at a detailed level, carried out early in the project as soon as the test basis is established, can contribute to defect prevention

Answer: A

Question 2

Assume you have some data related to confirmation testing during system testing of a past project.

In that project 240 bug reports have been opened once, 80 were opened twice, 10 were opened three times

and no bug reports have been opened more than three times.

You estimate that a bug report, which has failed its confirmation test, costs, on average, 3 person-hours.

Which of the following statements correctly describe the value of these confirmatory testing activities based

on cost of quality?

Options :

A : 300 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

B : 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of external failure

C : 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

D : 300 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of detection

Answer: A

Question 3

Which of the following information would you expect to be the most useful to perform a defect clustering analysis?

Options :

A : The trend in the lag time from defect reporting to resolution

B : The defect component information

C : The lifecycle phase in which the defect has been introduced

D : The defect removal efficiency information

Answer: B

Question 4

Assume you are the Test Manager in charge of independent testing for avionics applications.

You are in charge of testing for a project to implement three different CSCI (Computer Software

Configuration Item):

- a BOOT-X CSCI that must be certified at level B of the DO-178B standard

- a DIAG-X CSCI that must be certified at level C of the DO-178B standard

- a DRIV-X CSCI that must be certified at level A of the DO-178B standard

These are three different software modules written in C language to run on a specific hardware platform.

You have been asked to select a single code coverage tool to perform the mandatory code coverage

measurements, in order to meet the structural coverage criteria prescribed by the DO-178B standard. This

tool must be qualified as a verification tool under DO-178B.

Since there are significant budget constraints to purchase this tool, you are evaluating an open-source tool

that is able to provide different types of code coverage. This tool meets perfectly your technical needs in

terms of the programming language and the specific hardware platform (it supports also the specific Ccompiler).

The source code of the tool is available.

Your team could easily customize the tool to meet the project needs. This tool is not qualified as a

verification tool under the DO-178B.

Which of the following are the three main concerns related to that open-source tool selection?

Options :

A : Does the tool support all the types of code coverage required from the three levels A, B, C of the DO178B standard?

B : Does the tool have a good general usability?

C : What are the costs to qualify the tool as a verification tool under the DO-178B?

D : Is the installation procedure of the tool easy?

E : Does the tool require a system with more than 4GB of RAM memory?

F : Is the licensing scheme of the tool compatible with the confidentiality needs of the avionics company?

Answer: A,C

Question 5

Which of the following answers describes a factor that may reduce the effort spent when using distributed test teams without negatively affecting system quality?

Options :

A : Difficulties in communication between the distributed test teams due to time zone differences

B : With several distributed test teams, every team assumes that some test conditions are covered by other teams but actually no one covers them

C : With several distributed test teams, two or more teams assume some test conditions are covered by their team and their team alone. But all of the teams actually cover them

D : With several distributed test teams, all of the distributed test teams use a single unified test dashboard

Answer: D

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