Graham et.al, 2008, Foundations of Software Testing ISTQB Certification. Chapter 04 Test Design Techniques. QA

TEST DESIGN
TECHNIQUES
Sample Questions

Question 1
In which document described in IEEE 829 would you
find instructions for the steps to be taken for a test
including set-up, logging, environment and
measurement?
A. Test plan
B. Test design specification
C. Test case specification
D. Test procedure specification

Question 2
With a highly experienced tester with a good business
background, which approach to defining test procedures
would be effective and most efficient for a project under
severe time pressure?
A. A high-level outline of the test conditions and general
steps to take.
B. Every step in the test spelled out in detail.
C. A high-level outline of the test conditions with the steps to
take discussed in detail with another experienced tester.
D. Detailed documentation of all test cases and careful
records of each step taken in the testing.

Question 3
1) Print modified customer record.
2) Change customer address: house number
and street name.
3) Capture and print the on-screen error
message.
4) Change customer address: postal code.
5) Confirm existing customer is on the
database by opening that record.
6) Close the customer record and close the
database.
7) Try to add a new customer with no details
at all.
A. 5, 4, 2, 1, 3, 7, 6
B. 4, 2, 5, 1, 6, 7, 3
C. 5, 4, 2, 1, 7, 3, 6
D. 5, 1, 2, 3, 4, 7, 6
Put the test cases that implement the
following test conditions into the best
order for the test execution schedule, for
a test that is checking modifications of
customers on a database.

Question 4
Why are both specification-based and structure-
based testing techniques useful?
A. They find different types of defect.
B. Using more techniques is always better.
C. Both find the same types of defect.
D. Because specifications tend to be unstructured.

Question 5
What is a key characteristic of structure-based testing
techniques?
A. They are mainly used to assess the structure of a
specification.
B. They are used both to measure coverage and to
design tests to increase coverage.
C. They are based on the skills and experience of the
tester.
D. They use a formal or informal model of the
software or component.

Question 6
Which of the following would be an example of decision-
table testing for a financial application applied at the
system-test level?
A. A table containing rules for combinations of inputs to
two fields on a screen.
B. A table containing rules for interfaces between
components.
C. A table containing rules for mortgage applications.
D. A table containing rules for chess.

Question 7
Which of the following could be a coverage
measure for state transition testing?
V All states have been reached.
W The response time for each
transaction is adequate.
X Every transition has been exercised. Y
All boundaries have been exercised.
Z Specific sequences of transitions have
been exercised.
A. X, Y and Z
B. V, X, Y and Z
C. W, X and Y
D. V, X and Z

Question 8
Postal rates for 'light letters' are 25p up to 10g, 35p
up to 50g plus an extra 10p for each additional 25g up
to 100g.
Which test inputs (in grams) would be selected using
equivalence partitioning?
A. 8, 42, 82,102
B. 4, 15, 65, 92, 159
C. 10, 50, 75, 100
D. 5, 20, 40, 60, 80

Question 9
Which of the following
could be used to assess the
coverage achieved for
specification- based (black-
box) test techniques?
V Decision outcomes
exercised
W Partitions exercised
X Boundaries exercised
Y State transitions
exercised
Z Statements exercised
A. V, W, Y or Z
B. W, X or Y
C. V, X or Z
D. W, X, Y or Z

Question 10
Which of the following structure- based test design
technique would be most likely to be applied to?
1) Boundaries between mortgage interest
rate bands.
2) An invalid transition between two
different arrears’ statuses.
3) The business process flow for mortgage
approval.
4) Control flow of the program to calculate
repayments.
A. 2, 3 and 4
B. 2 and 4
C. 3 and 4
D. 1, 2 and 3

Question 11
Use case testing is useful for which of the following?
P Designing acceptance tests with users or
customers.
Q Making sure that the mainstream business
processes are tested.
R Finding defects in the interaction between
components.
S Identifying the maximum and minimum values for
every input field.
T Identifying the percentage of statements exercised
by a sets of tests.
A. P, Q and R
B. Q, S and T
C. P, Q and S
D. R, S and T

Question 12
Which of the following statements about the relationship
between statement coverage and decision coverage is
correct?
A. 100% decision coverage is achieved if statement
coverage is greater than 90%.
B. 100% statement coverage is achieved if decision
coverage is greater than 90%.
C. 100% decision coverage always means 100%
statement coverage.
D. 100% statement coverage always means 100%
decision coverage.

Question 13
If you are flying with an economy ticket, there is a possibility
that you may get upgraded to business class, especially if you
hold a gold card in the airline's frequent flier program. If you
don't hold a gold card, there is a possibility that you will get
'bumped' off the flight if it is full and you check in late. This is
shown in Figure 4.5. Note that each box (i.e. statement) has
been numbered.
Three tests have been run:
Test 1: Gold card holder who gets upgraded to business class
Test 2: Non-gold card holder who stays in economy
Test 3: A person who is bumped from the flight

Graham et.al, 2008, Foundations of Software Testing ISTQB Certification. Chapter 04 Test Design Techniques. QA

What is the statement coverage of these three tests?
A. 60%
B. 70%
C. 80%
D. 90%

Question 14
Why are error guessing and exploratory testing good to
do?
A. They can find defects missed by specification- based
and structure-based techniques.
B. They don't require any training to be as effective as
formal techniques.
C. They can be used most effectively when there are
good specifications.
D. They will ensure that all of the code or system is
tested.

Question 15
How do experience-based techniques differ from specification-
based techniques?
A. They depend on the tester's understanding of the way the
system is structured rather than on a documented record
of what the system should do.
B. They depend on having older testers rather than younger
testers.
C. They depend on a documented record of what the system
should do rather than on an individual's personal view.
D. They depend on an individual's personal view rather than
on a documented record of what the system should do.

Question 16
When choosing which technique to use in a given
situation, which factors should be taken into account?
U previous experience of types of defects found in
this or similar systems
V the existing knowledge of the testers
W regulatory standards that apply
X the type of test execution tool that will be used
Y the documentation available
Z previous experience in the development language
A. V, W, Y and Z
B. U, V, W and Y
C. U, X and Y
D. V, W and Y

Question 17
Given the state diagram in Figure 4.6, which test case
is the minimum series of valid transitions to cover
every state?
A. SS-S1-S2-S4-S1-S3-ES
B. SS-S1-S2-S3-S4-ES
C. SS-S1-S2-S4-S1-S3-S4-S1-S3-ES
D. SS-S1-S4-S2-S1-S3-ES

Graham et.al, 2008, Foundations of Software Testing ISTQB Certification. Chapter 04 Test Design Techniques. QA

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