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ISTQB Certified Tester Advanced Level Technical Test Analyst Sample Questions:

1. 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?

A) Defining the replaceability requirements
B) Configuring a production-like test environment
C) Determining the target availability for the system
D) Monitoring reliability in production

2. Given the following pseudo code for a program to solve quadratic equations:
program Quadratic Formula
integer: a, b, c, d
floating point: r1, r2
READ (a)
READ (b)
READ (c)
d := (b * b) - (4 * a * c)
IF d < 0 THEN
PRINT ("Imaginary Roots")
ELSE
r1 := (-b + sqrt(d)) / (2 * a)
r2 := (-b - sqrt(d)) / (2 * a)
PRINT ("first root is: " r1)
PRINT ("second root is: " r2)
ENDIF
END program Quadratic_Formula
Which of the following checklist items is MOST likely to indicate a problem in this program?

A) Does the code avoid comparing floating point numbers for equality?
B) Are all variables properly defined with meaningful, consistent and clear names?
C) Are there any redundant or unused variables?
D) Are divisors tested for zero or noise?

3. Which option below BEST explains the value of a test charter in exploratory testing"5 SELECT ONE OPTION

A) it provides bi-directional traceability to aspects of the epic or story under test
B) It provides a way to prevent a test session's timebox from being exceeded
C) It provides guidance for the tester at the beginning of a test session
D) It provides expected test outcomes against which defects, if found, can be reported.

4. What BEST describes how tools can support the practice of Model-Based Testing (MBT)?

A) MBT tools can generate test cases using a model of the system under test, but they cannot reduce the very large number of possible paths that can be generated in the model
B) MBT tools can help by generating a model of the system under test, based on the test results derived from both systematic and experience-based testing techniques
C) MBT tools can be used to generate large sets of distinct execution threads which can be saved and used as test cases
D) MBT tools can generate different levels of load on the system under test simulating predefined usage models for trial system

5. 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?

A) c and e
B) a and d
C) a and b
D) b and c

Solutions: