CTAL-TTA Practice Questions

Which of the following best describes the reason why poorly written code is usually more difficult to maintain than well written code?

You are defining the test approach for an Agile project release focused on significantly overhauling the user interface of a golf club's booking system. Additional features will allow more flexible bookings across three courses. These changes are driven by numerous customer complaints about the current system's confusing design and limited options. The release will consist of six two-week sprints.

Stakeholders have performed a risk assessment and consider the impact of system failure as high due to potential customer loss. A regression-averse strategy is recommended due to the extensive changes expected in screen design and functionality.

Which option below represents the BEST test approach for this release? Please use the following symbols consistently:

♦+ (highly recommended)

♦ (recommended)

o (neutral/optional)

• (not recommended)

- (not to be used)

SELECT ONE OPTION

Given the following pseudocode:

Program tax check

Integer: tax_rate

real: tax%

BEGIN

tax% := 0

GET (tax_rate)

WHILE tax_rate > 0 loop

IF tax_rate > 3 THEN

tax_rate := 3

ENDIF

tax% := tax% + (tax_rate / 10)

tax_rate := tax_rate - 1

ENDLOOP

IF tax% > 0.6 THEN

print ("tax rate is high")

ELSEIF tax% < 0.1 THEN

print ("tax rate is zero")

ELSE

print ("tax rate is low")

ENDIF

END tax check

If control flow analysis is performed on the pseudocode, which of the following results is MOST likely?

A project to replace your company's sales and merchandising system has begun. The old system is still in production but is poorly documented and expensive to maintain: changing it has often produced a large quantity of defects. The new version will be developed using modern techniques and technology.

Requirements include:

Loading sales data, sent electronically from the stores each evening, into a central database where it is then available for other applications.

Producing sales reports for the merchandisers, whose job is to manage stock levels in stores.

Predictions of future demand for each product, based on a combination of sales history and forecasting parameters.

Requirements 1 and 2 are satisfied by the existing system and will be rewritten with no significant changes. Requirement 3 is new: these forecasting reports will be run overnight, and users will request them by entering simple parameters online during the day.

The sales data are loaded in an overnight batch run. There have been problems at peak periods when this run has taken longer than scheduled, so that dependent jobs could not finish before the start of the working day.

As a Technical Test Analyst, you have been asked to contribute to the project's Master Test Plan. The concerns expressed by stakeholders during risk identification include the length of the batch job runs, ease of parameter entry for the users, unauthorized access to stored sales data, and limited time for testing. With these in mind, which TWO of the following quality characteristics sub-characteristics are likely to contain the highest levels of technical risk?

A) Operability.

B) Time behavior.

C) Interoperability.

D) Security.

E) Testability.

A unit test should be isolated Which option correctly describes the meaning of 'isolated' as a characteristic of a unit test?

SELECT ONE OPTION

Whenever it is run under the same conditions, it should produce the same results.

Listed below are some possible findings from static analysis of a component containing approximately 1,000 lines of code. Which combination suggests that the component does NOT need refactoring for better maintainability?

A) Low measure of coupling.

B) Low measure of cohesion.

C) Low measure of commenting.

D) Low measure of complexity.

E) High measure of coupling.

F) High measure of cohesion.

G) High measure of commenting.

H) High measure of complexity.

Which of the following elicitation techniques is BEST usedwhen questioning a large number of stakeholders specifically to obtain information for non-functional acceptance criteria?

SELECT ONE OPTION

The requirements specification of a product begins with this sentence:

"The xyz system will provide many new user functions. These must be easy for our operators to use and tolerant of user input errors. These new functions must also be easy to learn. Because of very high transaction rates and limited processing power, the software design must be very efficient. The system must be available as close to 24x7 as possible.

Which three ISO 25010 major quality characteristics should be tested for possible defects with this implementation?

You are responsible for the performance testing of a new web application. In particular, you are interested in determining if you have enough and the right type of servers to handle 10,000 concurrent users. Which is the primary consideration when you are selecting your performance testing tools?

A new application for planning journeys on public transport is being developed that will work on mobile devices. Why would you MOST likely include Portability testing in the test plan?