Question 1

Consider the following code fragment

If (a>b) and (b>c) then

b = (a+c)/2

endif

Assume that in the following options, each of the three numbers in parenthesis represent the inputs for a

test case, where the first number represents variable “a”, the second number represents variable “b”, and

the third number represents variable “c”.

Which of the following gives a set of test case inputs that achieves 100?cision coverage for this

fragment of code with the minimum number of test cases?

Options :

A : (5, 3, 2)

B : (5, 3, 2); (5, 4, 0)

C : (5, 4, 0); (4, 5, 0)

D : (4, 5, 0); (5, 4, 5)

Answer: C

Question 2

You have conducted static analysis on several new modules for an existing product. You are now executing test cases and are seeing inconsistent problems including crashes. Intermittent error messages are appearing. Despite all your best efforts, you are not able to find reproducible scenarios to force these errors. What problem in the code are you likely seeing?

Options :

A : Wild pointers

B : Poor error handling

C : Undefined variables

D : Instrumented code

Answer: A

Question 3

A component has been analysed during a risk-assessment and rated as highly critical. Which of the following white-box test techniques provides the highest level of coverage and could therefore be used to test this component?

Options :

A : Decision testing

B : Statement testing

C : Multiple condition testing

D : Modified condition/decision testing

Answer: D

Question 4

A new system is being built to handle the message handling of financial transactions - this system is critical to the organization's finances. The code includes loops and decisions with several multiple conditions. The nature of the system means that tests are quite time-consuming to execute. Which of the following would be the BEST white box testing option for the new software?

Options :

A : Multiple Condition coverage

B : MC/DC coverage

C : Decision coverage

D : Statement coverage

Answer: B

Question 5

If you are flying with an economy ticket, there is a possibility that you may get upgraded to business class,

especially if you hold a gold card in the airline’s frequent flier program. If you don’t hold a gold card, there is

a possibility that you will get ‘bumped’ off the flight if it is full and you check in late. This is shown in the

figure hereafter. Note that each box (i.e. statement) has been numbered.

Three tests have been run:

Test 1: Gold card holder who gets upgraded to business class

Test 2: Non-gold card holder who stays in economy

Test 3: A person who is bumped from the flight

What is the statement coverage of these three tests?

Options :

A : 60%

B : 70%

C : 80%

D : 90%

Answer: C

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