ISTQB Performance Tester Sample Questions

Mobile Application Testing, Foundation Level
Exam ID: A
Sample Exam – Answers
International
Software Testing
Qualifications Board
Version 1.1 Page 1 of 20 January 24, 2020
© International Software Testing Qualifications Board
ISTQB® Mobile Application Testing
Syllabus
Foundation Level
Exam ID: A
Version 1.1
International Software Testing Qualifications Board
Provided by International Software Quality Institute
(iSQI)
Release Date: January 24, 2020
Copyright Notice
This document may be copied in its entirety, or extracts made, if the source is acknowledged.

Exam ID: A
International
Software Testing
Legal
Copyright © 2019 International Software Testing Qualifications Board (hereinafter called
ISTQB®). All rights reserved.
The authors transfer the copyright to the International Software Testing Qualifications Board
(hereinafter called ISTQB®). The authors (as current copyright holders) and ISTQB® (as the
future copyright holder) have agreed to the following condition of use:
Any ISTQB® Member Board may translate this document.
Exam Working Group 2019
DocumentResponsibility
The ISTQB® Examination Working Group is responsible for this document.
Acknowledgements
This document was produced by a core team from the International Software Testing Qualifications Board
Mobile Application Testing Working Group: Vipul Kocher (chair), Piotr Wicherski (vice-chair), Angelina
Samaroo, Björn Lemke, Eran Kinsbruner, José Díaz, Lloyd Roden, Matthias Hamburg, Nils Röttger, Ralf
Pichler, Samuel Ouko, Tal Pe’er, Yaron Tsubery
The following persons participated in the reviewing, commenting or balloting of this syllabus: Graham Bath,
Jean-Baptiste Crouigneau, Florian Fieber, Chaonian Guo, Wim Decoutere, Attila Gyuri, Matthias Hamburg,
Meile Posthuma, Nishan Portoyan, Emilie Potin-Suau, Klaus Skafte, Michael Stahl, Chaobo Shang, Marco
Sogliani, Lucjan Stapp, Chris Van Bael, Paul Weymouth, Salinda Wickramasinghe, Minghui Xu

Exam ID: A
International
Software Testing
Revision History
Sample Exam – Answers Layout Template used: Version 1.6 Date: June 13, 2019
Version Date Remarks
1.0 May 3, 2019 ISTQB® Release
1.1 January 24, 2020 Layout corrections
Correction of questions: 16, 31, and 34

Exam ID: A
International
Software Testing
Table of Contents
Legal ................................................................................................................................................... 2
Document Responsibility.................................................................................................................... 2
Acknowledgements............................................................................................................................... 2
Revision History.................................................................................................................................... 3
Introduction .......................................................................................................................................... 5
Purpose of this document................................................................................................................... 5
Instructions ....................................................................................................................................... 5
Answer Key.......................................................................................................................................... 6
Answers ............................................................................................................................................... 7
1. .................................................................................................................................................. 7
2. .................................................................................................................................................. 7
3. .................................................................................................................................................. 7
4. .................................................................................................................................................. 8
5. .................................................................................................................................................. 8
6. .................................................................................................................................................. 9
7. .................................................................................................................................................. 9
8. .................................................................................................................................................. 9
9. .................................................................................................................................................. 9
10. .............................................................................................................................................. 10
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14 ............................................................................................................................................... 11
15 ............................................................................................................................................... 11
16 ............................................................................................................................................... 11
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27. .............................................................................................................................................. 15
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30. .............................................................................................................................................. 16
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34. .............................................................................................................................................. 17
35. .............................................................................................................................................. 18
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38. .............................................................................................................................................. 19
39. .............................................................................................................................................. 19
40. .............................................................................................................................................. 20

Exam ID: A
International
Software Testing
Introduction
Purpose of this document
The sample questions and answers and associated justifications in this sample exam set have been
created by a team of Subject Matter Experts and experienced question writers with the aim of assisting
ISTQB® Member Boards and Exam Boards in their question writing activities.
These questions cannot be used as-is in any official examination, but they should serve as guidance for
question writers. Given the wide variety of formats and subjects, these sample questions should offer many
ideas for the individual Member Boards on how to create good questions and appropriate answer sets for
their examinations.
Instructions
The answer set are organized in the following way:
 Learning Objective and K-level
 Answer Key with Learning Objective and K-level for each question
 Correct answer – including justification of the answers
 Questions are contained in a separate document

Exam ID: A
International
Software Testing
Answer Key
Question Number Correct Answer LO K-Level Points Question Number Correct Answer LO K-Level Points
1 c MAT-1.1.1 K2 1 21 d MAT-2.3.1 K2 1
2 b MAT-1.2.1 K2 1 22 a MAT-3.1.1 K3 1
3 a MAT-1.3.1 K1 1 23 a, b MAT-3.1.3 K2 1
4 c MAT-1.4.1 K2 1 24 a MAT-3.1.4 K1 1
5 b, c MAT-1.5.1 K2 1 25 c MAT-3.1.5 K3 1
6 b MAT-1.6.1 K3 1 26 c MAT-3.1.6 K1 1
7 a MAT-1.7.1 K2 1 27 b MAT-3.1.7 K2 1
8 c MAT-1.8.1 K2 1 28 a MAT-3.1.8 K2 1
9 a MAT 2.1.1 K2 1 29 b MAT-3.2.2 K2 1
10 c MAT-2.1.3 K2 1 30 d MAT-3.3.1 K1 1
11 d MAT-2.1.4 K1 1 31 c MAT-3.3.2 K2 1
12 a MAT-2.1.5 K1 1 32 d MAT-3.4.2 K2 1
13 b MAT-2.1.6 K2 1 33 d MAT-4.1.1 K1 1
14 d MAT-2.1.7 K3 1 34 b MAT-4.2.1 K1 1
15 c MAT-2.1.8 K3 1 35 c MAT-4.3.1 K2 1
16 c MAT 2.2.1 K3 1 36 b MAT-4.4.1 K2 1
17 a MAT-2.2.2 K2 1 37 c MAT-5.1.1 K2 1
18 c MAT-2.2.4 K2 1 38 b MAT-5.2.1 K2 1
19 d MAT-2.2.5 K1 1 39 d MAT-5.3.1 K1 1
20 a MAT-2.2.6 K1 1 40 b MAT-5.4.1 K2 1

Exam ID: A
International
Software Testing
Answers
Question Correct
Answer
Explanation / Rationale Learning
Objective
(LO)
K-level Number
of
Points
1. c a) Is not correct: Expected user base is not part of test strategy or
test plan.
b) Is not correct: Test levels, test cases and test data are derived
from the application, not from analytical data.
c) Is correct: As tests cannot be executed on all possible devices,
the selected device portfolio and prioritization should be based
on the devices and platforms most common found in the target
market. The information about most common devices and
platforms in the target market is provided by mobile analytics
data.
d) Is not correct: Application type and development model is not
selected within test strategy or test plan.
MAT-1.1.1 K2 1
2. b a) Is not correct: As the scenario does not include any hint
towards additional paid features.
b) Is correct: The data shown is publicly available, and thus it is
unlikely the user will pay to read the data in the app. However,
the user is used to seeing advertisements in news sites.
c) Is not correct: as it is a free-to-use app.
d) Is not correct: as no transactions are managed in this app
MAT-1.2.1 K2 1
3. a a) Is correct: Feature phones come with some apps installed, like
browsers, but user options to install additional apps are usually
limited to a small set of applications provided by the device
manufacturer
b) Is not correct: See justification in a).
c) Is not correct: See justification in a).
d) Is not correct: See justification in a).
MAT-1.3.1 K1 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
4. c a) Is not correct: Hybrid apps are less suitable than native apps,
since they require an additional layer to translate between web
technology content and the device runtime environment
b) Is not correct: Web apps do not utilize device features as well
as native apps
c) Is correct: The game is for one platform only and utilized many
device features, which can be best utilized by native apps.
d) Is not correct: as Android is a mobile OS not a Desktop OS.
MAT-1.4.1 K2 1
5. b, c a) Is not correct: Always connected is not necessary since user is
able to work offline. As the samples are sent out via physical
shipping, a delay between registration and arrival of samples is
present anyway
b) Is correct: Native app is appropriate since it is iOS and allows
user to work offline
c) Is correct: Store and forward model allows the user to register
even when he/she is offline while doing so
d) Is not correct: Cellular data is not the most important
consideration since the user is able to work offline. As the
samples are sent out via physical shipping, a delay between
registration and arrival of samples is present anyway
e) Is not correct: Web app will require constant connectivity to
operate
MAT-1.5.1 K2 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
6. b a) Is not correct: as remote device access service brings no
advantage for single platform user base.
b) Is correct: as the user bases is single platform and app is low
risk.
c) Is not correct: as maximum coverage does not go together with
low risk.
d) Is not correct: as testing should not be based on simulated
devices alone.
MAT-1.6.1 K3 1
7. a a) Is correct: Mobile apps are usually started via tapping in the
GUI. Thus, the user has no option to provide additional
parameters during startup of the app.
MAT-1.7.1 K2 1
8. c a) Is not correct: as it is a project risk.
b) Is not correct: as crowd testing has no impact on maintenance
cost per platform.
c) Is correct: as the crowd has a lot of different devices.
d) Is not correct: as good reviews are not a risk.
MAT-1.8.1 K2 1
9. a a) Is correct: As mentioned in the text, the SUT is a native app
and common native apps can work without an internet
connection. Thus, testing the WLAN module should have the
lowest priority in comparison to the tests of the other hardware
features.
MAT-2.1.1 K2 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
10. c a) Is not correct: as drop in CPU frequency is used to reduce
power consumption.
b) Is not correct: as shutting down parts of the system is used to
reduce power consumption.
c) Is correct: as apps are not de-installed due to overheating.
d) Is not correct: as malfunctioning can occur.
MAT-2.1.3 K2 1
11. d a) Is not correct: GPS signal belongs to input sensors.
b) Is not correct: Gyroscope belongs to input sensors.
c) Is not correct: Motion sensor belongs to input sensors.
d) Is correct: This scenario is not testing an input sensor.
MAT-2.1.4 K1 1
12. a a) Is correct: This is the best answer, because it lists only
scenarios covering different input methods.
b) Is not correct: Printing the content of a screen is testing of an
output and not an input method.
c) Is not correct: Sending an SMS to a friend is also testing of an
output method.
d) Is not correct: Using a TV remote app is testing an output and
not an input method.
MAT-2.1.5 K1 1
13. b a) Is not correct: Testing security aspects is not done while
testing for correct screen orientation.
b) Is correct: The list contains only aspects that are mentioned in
the syllabus for screen orientation change.
c) Is not correct: Performance testing is not done while testing for
correct screen orientation.
d) Is not correct: Testing for WLAN interrupts is not done while
testing for correct screen orientation.
MAT-2.1.6 K2 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
14 d a) Is not correct: Statement i Is not correct: because the software
has been implemented as a mobile-web application.
b) Is not correct: as statements i and iv are fault tolerance for
user-initiated interrupts.
c) Is not correct: Statement iv is not a user-initiated interrupt.
d) Is correct: Statements ii, iii and v are all user-initiated
interrupts.
MAT-2.1.7 K3 1
15 c a) Is not correct: There is no hint in the text that the users have
experienced performance problems.
b) Is not correct: There is nothing mentioned in the text that users
are complaining about the malfunctioning of the scanning
feature.
c) Is correct: This is the most important test to be performed,
because missing or incorrect access permissions may be a
possible root cause for the fixed problem.
d) Is not correct: The users are able to install the update of the
app successfully, as stated in the text.
MAT-2.1.8 K3 1
16 c a) Is not correct: See justification in c).
b) Is not correct: See justification in c).
c) Is correct: Statements i, ii and v are functional tests, as
mentioned in the text. Statements iii and iv are non-functional
tests. Additionally, their execution makes no sense in this
context.
d) Is not correct: See justification in c).
MAT-2.2.1 K3 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
17. a a) Is correct: According to the syllabus, testing the force-touch
functionality is an example that is in the context of testing
quick-access links.
b) Is not correct: This approach does not focus on testing failure-
free working of quick-access links. Instead it focuses on
browser bookmarks
c) Is not correct: This approach does not focus on testing failure-
free working of quick-access links. Instead it focuses on
interactions with device hardware
d) Is not correct: This approach does not focus on testing failure-
free working of quick-access links. Instead it focuses on links
pointing to resources not available.
MAT-2.2.2 K2 1
18. c a) Is not correct: As performance is important for any app.
b) Is not correct: As testing the utilization of device features is
important.
c) Is correct: As a native app does not use various browsers.
d) Is not correct: As the app should be compatible with the
various devices of the users.
MAT-2.2.4 K2 1
19. d a) Is not correct: Testing for security issues is not primarily the
focus of verifying interoperability with different OS versions.
d) Is correct: Testing for backward compatibility focuses on
verifying correct interoperability with different OS versions, as
stated as example in the syllabus.
MAT-2.2.5 K1 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
20. a a) Is correct: This is an accurate test goal for testing the SUT for
co-existence with other installed applications on the device.
b) Is not correct: This is not a valid test goal in the context of
testing for co-existence of the SUT to other applications.
c) Is not correct: See justification in b).
d) Is not correct: See justification in b).
MAT-2.2.6 K1 1
21. d a) Is not correct: According to the syllabus, this answer contains
an appropriate aspect for performing connectivity tests.
d) Is correct: To plug in a power supply via USB does not focus
on connectivity, but it can be used as a suitable scenario for
interrupt testing.
MAT-2.3.1 K2 1
22. a a) Is correct: Exe is an executable file format for Windows only. It
won’t work on Android.
b) Is not correct: Connecting the device to a PC and running
installation commands can be used for installation testing on
Android devices.
c) Is not correct: Installation from the Google Play Beta Program
will work on Android devices.
d) Is not correct: This scenario can also be used for installation
testing on Android devices.
MAT-3.1.1 K3 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
23. a, b a) Is correct: Code injection is a security related concern
b) Is correct: Data encryption at transfer is a security related
concern
c) Is not correct: Since an app not responding after interruption is
more of an operational than a security concern
d) Is not correct: Rendering issues are not directly security-
related
e) Is not correct: Overlap of screen elements on small screens is
not directly a security concern
MAT-3.1.3 K2 1
24. a a) Is correct: Only an instrumented build can provide exact
chronometric numbers on how long a processing step within
the app actually lasted. A stop watch is not sufficient in the
range of milliseconds. Also, it does not allow differentiation
between the time taken by the app, by the backend and time
for network communication.
b) Is not correct: Server-side performance is not app performance
c) Is not correct: Emulator/Simulator can never provide correct
app performance
MAT-3.1.4 K1 1
25. c a) Is not correct: Because this step is to be performed.
b) Is not correct: Because this step is to be performed.
c) Is correct: Because this step is NOT to be performed.
d) Is not correct: Because this step is to be performed.
MAT-3.1.5 K3 1
26. c a) Is not correct: As per syllabus and glossary.
b) Is not correct: As per syllabus and glossary.
c) Is correct: As per syllabus and glossary.
d) Is not correct: As per syllabus and glossary.
MAT-3.1.6 K1 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
27. b a) Is not correct: See justification in b).
b) Is correct: When doing internationalization testing, we want to
see that all strings are sourced from a resource. Thus, if the
app does not show the pseudo-strings and instead shows real
language, it is not sourced from the pseudo-string resource.
c) Is not correct: See justification in b).
d) Is not correct: See justification in b).
MAT-3.1.7 K2 1
28. a a) Is correct: The syllabus states that accessibility testing “is
performed to determine the ease by which users with differing
needs can use a component or system”
MAT-3.1.8 K2 1
29. b a) Is not correct: Archiving testware is a test closure activity,
which is done after post-release testing.
b) Is correct: When the app is available in the application store it
must be tested that it can be installed from there, and works as
in the build that was tested.
c) Is not correct: Application store approval testing should be
done prior to submission.
MAT-3.2.2 K2 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
30. d a) Is not correct: As the question does not provide any
information about risks and all sessions have the same time
frame, not a time frame adjusted according to risk.
b) Is not correct: As no delegation of responsibilities is
happening.
c) Is not correct: As no performance testing is done in the
scenario.
d) Is correct: The team lead uses Session-Based Test
Management, as testing is divided into 1h sessions, each with
a defined focus.
MAT-3.3.1 K1 1
31. c a) Is not correct. Field testing is not only limited to cloud-
solutions.
b) Is not correct. Field testing is not only limited to device labs. It
should also be performed in the real world.
c) Is correct: Tours are used to explore an application and to
understand how it works. In this context it is very effective for
field testing.
d) Is not correct: Using a test automation tool is not suitable in the
context of exploratory testing with respect to field testing.
MAT-3.3.2 K2 1
32. d a) Is not correct: This statement is simply wrong.
b) Is not correct: This statement is simply wrong.
c) Is not correct: This statement is simply wrong.
d) Is correct: Market and device fragmentation, as well as user
expectations with regard to usability, and the variability of
usage scenarios give test conditions which can only be tested
manually.
MAT-3.4.2 K2 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
33. d a) Is not correct: Visual Studio IDE is not used for developing
apps for iOS.
b) Is not correct: Xcode IDE is used for developing apps for iOS,
but Universal Studio IDE is not used for developing apps for
Android.
c) Is not correct: Xcode IDE is not used for developing apps for
Android.
d) Is correct: Referring to the examples given at the syllabus, for
Android app development Android Studio may be used and for
iOS app development Xcode may be used.
MAT-4.1.1 K1 1
34. b a) Is not correct: Taking screenshots can be utilized by an SDK
and is listed in the examples of chapter 4.2.
b) Is correct: According to chapter 4.2 the task of designing test
cases is not mentioned in the examples that can be supported
by tools as part of SDKs.
c) Is not correct: Pushing random events to the application can
be utilized by an SDK and is listed in the examples of chapter
4.2.
d) Is not correct: Creating virtual devices can be utilized by an
SDK and is listed in the examples of chapter 4.2.
MAT-4.2.1 K1 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
35. c a) Is not correct: See justification in c).
b) Is not correct: See justification in c).
c) Is correct: It is possible to have a simulator representing the
server side, and the application installed on the AVD emulator
to better utilize the earlier test environment (all on one PC). In
addition, having the tester advising the developer on an
environment is good, as is simulating the server side for basic
functionality testing as an alternative if the server side has
problems or if requested to be utilized by the testing team on
early test stages
d) Is not correct: See justification in c).
MAT-4.3.1 K2 1
36. b a) Is not correct: See justification in b).
b) Is correct: The on-premise lab main advantage is to enable
specific tests for sensors, battery, and unique-device related
feature or tech part, especially if it’s done by the device
manufacturer – in that case Samsung. The question is targeted
to check if the examinee knows how to distinguish between the
labs by leveraging the lab’s advantages.
MAT-4.4.1 K2 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
37. c a) Is not correct: An agent-based testing approach is best used
for executing mobile web applications, whereas device-based
testing is best used for all types of mobile applications.
b) Is not correct: Agent-based approaches utilize the User-Agent
string sent by the browser to spoof a particular browser on a
particular device and device-based approaches execute on the
actual gadget.
c) Is correct: It is the mobile apps that are tested using general
web application tools, whereas native apps are best tested
using specific tools.
d) Is not correct: The agent-based approach mimics the browser,
whereas the device-based approach runs on the actual
browser.
MAT-5.1.1 K2 1
38. b a) Is not correct: Object based scripting requires manual
scripting not needed in Image/OCR scripting.
b) Is correct: Object based scripting is the most reliable method of
authoring test automation code.
c) Is not correct: Maintenance effort and authoring challenges
relating to of Image/OCR are higher with app changes that
affect the baseline images.
d) Is not correct: Image/OCR is the less reliable method.
MAT-5.2.1 K2 1
39. d a) Is not correct: It is important to consider testers skill set when
evaluating the tools.
b) Is not correct: It is important to consider automation
requirements and complexities.
c) Is not correct: This is an important consideration.
d) Is correct: It is not a major consideration to make consideration
for independent operation.
MAT-5.3.1 K1 1

Exam ID: A
International
Software Testing
Question Correct
Answer
Objective
(LO)
K-level Number
of
Points
40. b a) Is not correct: Remote test labs are best for advanced stages
with full lab setup.
b) Is correct: Testing against a local device lab is the approach
that would typically serve small range of devices for earlier
stages of the app testing.
c) Is not correct: Remote test labs usually have a wide variety of
devices.
d) Is not correct: Remote test labs are usually stable for large
scale tests.
MAT-5.4.1 K2 1

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