ISTQB CTAL-TTA Practice Test - Questions Answers, Page 15

Consider the simplified logic below for crediting money to a bank account.

Receive money and account number to be credited

IF account number is valid

IF customer account is active

Store current account balance as oldBalance

Credit money to account

IF oldBalance < zero

IF balance now >= zero

Set message 'Overdraft cleared'

ELSE

Set message 'A/c overdrawn'

ENDIF

ELSE

Set message = 'You have more money'

ENDIF

IF account holder is VIP customer

Send message by email to customer

ENDIF

ELSE

Set message 'A/c inactive'

Send message by email to supervisor

ENDIF

ELSE

Add 1 to count of invalid inputs

ENDIF

What percentage of decision testing coverage has been achieved by the following suite of test cases?

Test Case A - Account number valid, account is active, oldBalance = -100, balance now = +200, not a VIP customer

Test Case B - Account number valid, account is active, oldBalance = -100, balance now = -50, is a VIP customer

Which of the following statements about Application Programming Interface (API) testing is TRUE?

Below is pseudo-code which calculates a customer's cruise credits based on past cruise history:

PROGRAM CALC CRUISE CREDITS (CUST_ID)

COUNT_CRUISES, CRUISE_CREDITS, LOYALTY_RATING: INTEGER

CRUISE_LENGTH, CRUISE_ACCOM_TYPE: VAR

LOYALTY_RATING = 0

COUNT_CRUISES = 0

CRUISE_LENGTH = 0

CRUISE_ACCOM_TYPE = 0

BEGIN

READ CUSTOMER'S CRUISE HISTORY TO OBTAIN COUNT OF CRUISES

READ CRUISE_HISTORY (CUST_ID)

WHILE COUNT_CRUISES != -1 DO

READ CUSTOMER'S NEXT CRUISE

READ NEXT_CRUISE

IF CRUISE_ACCOM_TYPE = 3 THEN

CRUISE_CREDITS = CRUISE_CREDITS + 5

ELSE

IF CRUISE_ACCOM_TYPE = 2 THEN

CRUISE_CREDITS = CRUISE_CREDITS + 3

ELSE

CRUISE_CREDITS = CRUISE_CREDITS + 2

ENDIF

ENDIF

COUNT_CRUISES = COUNT_CRUISES - 1

ENDWHILE

LOYALTY_RATING = CRUISE_CREDITS / COUNT_CRUISES

WRITE ('CRUISE CREDIT TOTAL IS:')

WRITE (CRUISE_CREDITS)

END PROGRAM CALC CRUISE CREDITS

The variable Cruise_Length (line 3) results in which type of data flow anomaly?

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.

You have run static analysis tools against four large, complex code components (A, B, C, and D) with the following measures reported:

(Insert Table 1)

You must decide which component should be selected FIRST for applying maintainability improvements. The combination of Cohesion and Coupling is regarded as the MOST important factor, v/ith the number of repeated code sections as the next important factor.

Which component should you select?

Below is pseudo-code which calculates a customer's cruise credits based on past cruise history:

PROGRAM CALC CRUISE CREDITS (CUST_ID) COUNT_CRUISES, CRUISE_CREDITS, LOYALTY_RATING: INTEGER CRUISE_LENGTH, CRUISE_ACCOM_TYPE: VAR

LOYALTY_RATING = 0

COUNT_CRUISES = 0

CRUISE_LENGTH = 0

CRUISE_ACCOM_TYPE = 0

BEGIN

READ CUSTOMER'S CRUISE HISTORY TO OBTAIN COUNT OF CRUISES

READ CRUISE_HISTORY (CUST_ID)

WHILE COUNT_CRUISES != -1 DO

READ CUSTOMER'S NEXT CRUISE

READ NEXT_CRUISE

IF CRUISE_ACCOM_TYPE = 3 THEN

CRUISE_CREDITS = CRUISE_CREDITS + 5

ELSE

IF CRUISE_ACCOM_TYPE = 2 THEN

CRUISE_CREDITS = CRUISE_CREDITS + 3

ELSE

CRUISE_CREDITS = CRUISE_CREDITS + 2

ENDIF

ENDIF

COUNT_CRUISES = COUNT_CRUISES - 1

ENDWHILE

LOYALTY_RATING = CRUISE_CREDITS / COUNT_CRUISES

WRITE ('CRUISE CREDIT TOTAL IS:')

WRITE (CRUISE_CREDITS)

END PROGRAM CALC CRUISE CREDITS

The code contains data flow anomalies on lines 14 and 27. Which examples of data flow anomalies can be found on these lines?

Consider the following statements regarding Performance Efficiency Testing:

A) Static Analysis tools can analyze code to identify performance bottlenecks

B) Code reviews are an effective way of detecting performance issues

C) Scalability and Load testing are usually performed during the System test level

D) Performance test execution cannot begin until a production-like environment is available

Which TWO of these statements are TRUE?

Which TWO of the following statements about Maintainability testing are TRUE?

A) It should start as soon as the draft design documents are available for review

B) An application can be considered maintainable when static analysis and code review defects have been fixed

C) It tests the regression impact of software or environmental changes to an operational system

D) It can be performed during Operational Acceptance Testing by multiple departments

E) It can be performed during User Acceptance Testing to ensure business processes can be maintained

BestFor Incorporated is a rapidly growing online financial services company that offers guidance to its customers on a range of financial products. Its first website, BestForMortgages, was launched two years ago, shortly followed by BestForPensions. The popularity of both sites has driven the company to expand its offerings into other sectors and a third website, BestForFood, is currently under development.

The first two websites have proven to be functionally robust but suffered from performance issues due to:

Underestimation of concurrent user access at peak times in its original operational profiles

Data volumes rapidly growing beyond expectations on a single database shared by both sites.

All three websites will share the same web server.

In consideration of the problems encountered with the first two websites, which TWO of the following types of testing should be performed on the BestForFood website to see whether similar defects exist?

A) Load Testing

B) Stress Testing

C) Scalability testing

D) Portability Testing

E) Recoverability testing