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ISQI ISTQB Certified Tester Advanced Level Test Analyst (CTAL-TA v4.0) Sample Questions:

1. The following decision table shows the rules for sending a package. Same day delivery will not be provided for big packages. All combinations of same day delivery and international destination have been removed as they are infeasible.

How many columns will the table have after all possible minimization has been performed?

A) 7
B) 9
C) 8
D) 10

2. You are working on a project to build a purchasing system. The main requirements for the system are that it shall:
* Allow users to enter details of items that they wish to have purchased and, from these details, create a purchase request.
* Take each purchase request through a workflow that will allow the requestor's line manager to approve the request, reject it or return it for clarification / modification.
* Forward approved requests to the Purchasing Department.
* Allow purchasers to find the best available supplier for each approved request and place the request on that supplier as a purchase order.
The solution is being developed according to the company's traditional V-model methodology. The requirements are clearly documented and include a business process model. Operational profiles have been created to guide performance testing.
Initial item entry will involve a check that each item entered exists on the master stock file and that the user is entitled to request it; this depends on user role and grade. Line manager authorization will be assisted by a recommendation made by the system according to relevant business rules, although the manager can override this recommendation. For approved requests, the workflow will continue to support the process through to placing of the purchase order.
Planning has begun for system testing and the Test Manager has asked you, the senior TA, to help with it.
What would be the MOST effective techniques for functional testing of this project?
a) Combinatorial testing
b) Random testing
c) CRUD testing
d) State transition testing
e) Scenario-based testing
f) Decision table testing
g) Exploratory testing

A) c, e and g
B) b, d and f
C) d, e and f
D) a, b and g

3. You are testing a program which calculates the best airspeed for optimal fuel economy of a new type of aero engine. The result depends on atmospheric pressure at the airplane's current height, the air temperature at the airplane's current height, and on the airplane's current fuel load. The best airspeed:
* decreases by 4 knots (nautical miles per hour) for every 5mb (millibar) decrease in atmospheric pressure,
* increases by 6 knots for every 1°C decrease in air temperature,
* increases by 1 knot for every 1,000kg decrease in fuel load.
You have a test case which predicts that at an atmospheric pressure of 1,000 mb, an air temperature of 10°C and a fuel load of 400,000kg, the optimal airspeed for an Airbus A380 is 600 knots.
Which test case would verify the metamorphic relation described in the three bullet points above?

A) Pressure 1050mb, temp. 9°C, fuel 350,000kg, optimal airspeed = 590 knots
B) Pressure 950mb, temp. 9°C, fuel 350,000kg, optimal airspeed = 616 knots
C) Pressure 950mb, temp. 11°C, fuel 400,000kg, optimal airspeed = 610 knots
D) Pressure 950mb, temp. 10°C, fuel 360,000kg, optimal airspeed = 620 knots

4. The test basis for your latest project contains the activity diagram that is shown below. The business architect has confirmed that this model has been reviewed and approved by the stakeholders.

Which of the following conclusions is correct?

A) The diagram may contain a defect but this cannot be confirmed until test cases have been designed from it
B) The diagram may contain a defect but this cannot be confirmed until the results of the tests created from it are known
C) The diagram is correct because it has been reviewed and approved by the stakeholders
D) The diagram contains at least one defect because it contains an internal inconsistency

5. You are assigned to an Agile team as a Test Analyst. In most ways, the team seems to be working well.
Iteration planning goes smoothly because the user stories are good quality. Most defects that are found by testing are fixed in the same iteration and those that do go live are not causing significant dissatisfaction amongst stakeholders. However, the team is unhappy because the Defect Removal Efficiency rate, measured for each iteration, is less than 80%.
What would be the MOST effective contribution by you as a TA, to improve the situation?

A) Participating in retrospectives
B) Reviewing requirements
C) Participating in root cause analysis
D) Defect data collection and evaluation

Solutions: