ISTQB CTAL-TTA Practice Test - Questions Answers, Page 16
List of questions
Question 151

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, has recently been released.
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 share the same web server.
The BestForFood system has been running live for several months, however the following significant non-functional defects have been recorded:
A) The layout and navigation of the BestForFood website was not considered by the users as consistent with BestForPensions and BestForMortgages
B) Soon after delivering the BestForFood system the performance of both BestForPensions and BestForMortgages noticeably slowed
C) The time taken to diagnose, repair and re-test production defects did not meet BestForFood service level agreements
D) BestForFood performance was adversely impacted by unexpected growth in data volumes
E) The time taken to install monthly builds into the production system exceeded agreed timescales.
Which TWO of these defects might have been prevented had portability testing and compatibility testing been employed?
Question 152

When planning and specifying security tests which of the following is NOT likely to be a useful part of the approach?
Question 153

The stakeholders in a new system want its mean time between failure to be three months or longer, with a mean time to repair the system of ten minutes or less when it does fail. When planning and specifying reliability tests to be performed before release, which ONE of the following is a factor that must be considered?
Question 154

A project to develop a new system has performance efficiency listed as a critical requirement. Which of the following describes how and when the Technical Test Analyst should FIRST be involved in performance test activities for the new system?
Question 155

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?
Question 156

A new application for planning journeys on public transport is being developed that will work on mobile devices. Why would you MOST likely include Compatibility testing in the test plan?
Question 157

You are a Technical Test Analyst preparing load test scripts. You have been invited to a technical review of the system's operational profile document produced by the business. The meeting is next week, during your preparation you notice that volumetric data covering projected transaction volumes will be held in a separate document that will not be available before the meeting. What would be the BEST course of action?
Question 158

The last release of a hotel booking website resulted in poor system performance when hotel searches reached peak volumes. To address these problems in the forthcoming release, changes to the system architecture are to be implemented as follows:
Change 1 - Provision of a single Internet service using multiple servers, rather than a single server, to maximize throughput and minimize response time during peak volumes
Change 2 - Prevention of unnecessary database calls for objects that were not immediately needed by the calling applications. Achieved by not automatically creating database connections at the start of processing, instead only just before the data is required.
The system architecture document has been drafted and as Technical Test Analyst you have been invited to participate in its review. Which of the following review checklist items is MOST likely to identify any defects in the proposed system architecture for Change 1?
Question 159

The last release of a hotel booking website resulted in poor system performance when hotel searches reached peak volumes. To address these problems in the forthcoming release, changes to the system architecture are to be implemented as follows:
Change 1 - Provision of a single Internet service using multiple servers, rather than a single server, to maximize throughput and minimize response time during peak volumes
Change 2 - Prevention of unnecessary database calls for objects that were not immediately needed by the calling applications. Achieved by not automatically creating database connections at the start of processing, instead only just before the data is required.
The system architecture document has been drafted and as Technical Test Analyst you have been invited to participate in its review. Which of the following review checklist items is MOST likely to identify any defects in the proposed system architecture for Change 2?
Question 160

A review of the following pseudo code is to be performed using a checklist:
Module Vowel Counter
Message: array of Characters
M, N: Integer
ACount, ECount, ICount, OCount, UCount: Integer
BEGIN
I=1
Read Nextchar
While Nextchar <> 'S'
DO
Message (I) = Nextchar
I = I+1
Read Nextchar
ENDWHILE
FOR M = 1 To I
DO
Print (Message(M))
IF Message (M) = 'E'
THEN
ECount = ECount + 1
ELSE
IF Message (M) = 'A'
THEN
ACount = ACount + 1
ELSE
IF Message (M) = 'I'
THEN
ICount = ICount + 1
ELSE
IF Message (M) = 'O'
THEN
OCount = OCount + 1
ELSE
IF Message (M) = 'U'
THEN
UCount = UCount + 1
ENDIF
ENDIF
ENDIF
ENDIF
ENDIF
ENDFOR
Print ('Message contains ' ACount + ECount + ICount + OCount + UCount ' vowels')
END
Which of the following checklist items would find code errors in this scenario?
A) Are all variables properly declared?
B) Are all loops, branches, and logic constructs complete, correct, and properly nested?
C) Are all cases covered in an IF-ELSEIF, including ELSE or DEFAULT clauses?
D) Are loop termination conditions obvious and invariably achievable?
E) Are there any redundant or unused variables?
Question