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

1. You have been appointed to be a TA in the development of a road traffic control application, which will be installed at busy road junctions to control the operation of traffic signal lights according to sensors that detect traffic volume on the various approaches to the junction. The project is still in the early stages of test planning, but it is already clear that despite a tight schedule its safety-critical nature demands careful and thorough testing.
You have been asked to decide whether automated test design would deliver benefits. Which characteristic of automated test design is MOST important for the development of this system?

A) Testware can be generated in various output formats, e.g. for use by different tools
B) Less maintenance effort for the testware after the system has gone live
C) Creating the model will expose defects in the test basis early in the project
D) Testware generated by tools usually contains fewer mistakes than testware created manually

2. The following use case diagram shows the process of raising a Purchase Request (PR) and getting it authorized. Details are entered in batches; any that fail validation will be rejected and must be re-entered. The details will indicate whether the request is a normal one or an emergency one. Normal requests must be authorized by the department manager, who may refuse to do so. Emergency requests will be automatically authorized and reported to the manager.

The test strategy states that:
* all combinations of extensions and exceptions, as well as the main scenario, shall be tested
* loops shall get simple loop coverage where the maximum number of iterations for validation exceptions is 3 and the typical number is 2.
What is the minimum quantity of test cases that will be needed to obtain this coverage?

A) 4
B) 5
C) 6
D) 7

3. You are working on a project to replace an old sales and merchandising system with a new system that will be based on modern platforms. The old system is still in production but is poorly documented and expensive to maintain. The new version will be developed using modern technology. The main requirements for the system are that it shall:
* Load sales data, sent electronically from the stores each evening, into a central database.
* Produce actual sales reports for the merchandisers, whose job is to manage stock levels in stores.
* Produce sales forecast reports based on a combination of sales history and forecasting parameters. The parameters will be entered by the merchandisers into a browser-based front end and the reports will be produced overnight. The users will be able to see the reports next day, on screen or in print, by requesting this through the browser.
Requirements 1 and 2 are satisfied by the existing system and will be rewritten with no significant changes.
Requirement 3 is new and has been clearly specified.
The entry of forecasting parameters and of requests to see the reports will be low volume, but the Merchandising Manager is concerned about usability because the forecasting parameters are complex.
Which test charter would be BEST for the initial exploratory testing of requirement 3?

A) Explore the forecasting parameter entry features With their requirements specification To discover any usability issues
B) Explore the actual sales report production features With examples of the current reports To discover any adverse impact of requirement 3 on requirement 2
C) Explore the forecasting parameter entry features With their requirements specification To discover any performance issues
D) Explore the report request entry features With their requirements specification To discover any usability issues

4. A savings bank rewards its customers with a £100 bonus when they reach the age of 21, if they have held a savings account for more than 3 years and have at least £2,000 in the account at that time.
Assume that Age is measured in whole years, Account term in whole years, and Account balance to two decimal places, i.e., pounds and pence.
The intended rule is:
IF Age = 21 AND Account term > 3 years AND Account balance > = £2000.00 THEN Pay £100 bonus You have a suite of test cases with the following values:
* TC1 Age = 21, Account term = 3 years, Account balance = £2000.00
* TC2 Age = 20, Account term = 6 years, Account balance = £500.00
* TC3 Age = 20, Account term = 2 years, Account balance = £3000.00
Which of the following test cases should you add to the suite to achieve 100% Reliable domain coverage?

A) Age = 20, Account term = 4 years, Account balance = £2000.01
B) Age = 22, Account term = 4 years, Account balance = £2000.00
C) Age = 22, Account term = 4 years, Account balance = £1999.99
D) Age = 21, Account term = 3 years, Account balance = £1999.99

5. You are testing a program which should calculate the area of a trapezium and have decided to use metamorphic testing. The formula Area = (((a + b) / 2) * h) where a and b are the lengths of the two parallel sides, and h is the height when the parallel sides are horizontal.
Which ONE of the following would be an appropriate metamorphic relation?

A) If b increases by x then area increases by ((x * 2) / 3)%
B) If b increases by x% then h increases by ((x * 2) / 3)%
C) If b increases by x then h increases by ((x * 2) / 3)%
D) If b increases by x% then area increases by ((x * 2) / 3)%

Solutions: