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SOFTWARE TESTING QUESTIONS...., Multiple Choice Question with
Answer........
1 : With thorough testing it is possible to remove all defects from a
program prior to delivery to the customer.
a. True
b. False
ANSWER : b
2 : Which of the following are characteristics of testable software ?
a. observability
b. simplicity
c. stability
d. all of the above
ANSWER : d
3 : The testing technique that requires devising test cases to demonstrate
that each program function is operational is called
a. black-box testing
b. glass-box testing
c. grey-box testing
d. white-box testing
ANSWER : a
4 : The testing technique that requires devising test cases to exercise the
internal logic of a software module is called
a. behavioral testing
b. black-box testing
c. grey-box testing
d. white-box testing
ANSWER : d
5 : What types of errors are missed by black-box testing and can be uncovered
by white-box testing ?
a. behavioral errors
b. logic errors
c. performance errors
d. typographical errors
e. both b and d
ANSWER : e
6 : Program flow graphs are identical to program flowcharts.
a. True
b. False
ANSWER
: b
7 : The cyclomatic complexity metric provides the designer with information
regarding the number of
a. cycles in the program
b. errors in the program
c. independent logic paths in the program
d. statements in the program
ANSWER : c
8 : The cyclomatic complexity of a program can be computed directly from a
PDL representation of an algorithm without drawing a program flow graph.
a. True
b. False
ANSWER : a
9 : Condition testing is a control structure testing technique where the
criteria used to design test cases is that they
a. rely on basis path testing
b. exercise the logical conditions in a program module
c. select test paths based on the locations and uses of variables
d. focus on testing the validity of loop constructs
ANSWER
: b
10 : Data flow testing is a control structure testing technique where the
criteria used to design test cases is that they
a. rely on basis path testing
b. exercise the logical conditions in a program module
c. select test paths based on the locations and uses of variables
d. focus on testing the validity of loop constructs
ANSWER : c
11 : Loop testing is a control structure testing technique where the criteria
used to design test cases is that they
a. rely basis path testing
b. exercise the logical conditions in a program module
c. select test paths based on the locations and uses of variables
d. focus on testing the validity of loop constructs
ANSWER : d
12 : Black-box testing attempts to find errors in which of the following
categories
a. incorrect or missing functions
b. interface errors
c. performance errors
d. all of the above
e. none of the above
ANSWER : d
13 : Graph-based testing methods can only be used for object-oriented systems
a. True
b. False
ANSWER : b
14 : Equivalence testing divides the input domain into classes of data from
which test cases can be derived to reduce the total number of test cases that
must be developed.
a. True
b. False
ANSWER : a
15 : Boundary value analysis can only be used to do white-box testing.
a. True
b. False
ANSWER : b
16 : Comparison testing is typically done to test two competing products as part
of customer market analysis prior to product release.
a. True
b. False
ANSWER : b
17 : Orthogonal array testing enables the test designer to maximize the
coverage of the test cases devised for relatively small input domains.
a. True
b. False
ANSWER : a
18 : Test case design "in the small" for OO software is driven by the
algorithmic detail of
the individual operations.
a. True
b. False
ANSWER : a
19 : Encapsulation of attributes and operations inside objects makes it easy to
obtain object state information during testing.
a. True
b. False
ANSWER
: b
20 : Use-cases can provide useful input into the design of black-box and
state-based tests of OO software.
a. True
b. False
ANSWER
: a
21 : Fault-based testing is best reserved for
a. conventional software testing
b. operations and classes that are critical or suspect
c. use-case validation
d. white-box testing of operator algorithms
ANSWER : b
22 : Testing OO class operations is made more difficult by
a. encapsulation
b. inheritance
c. polymorphism
d. both b and c
ANSWER : d
23 : Scenario-based testing
a. concentrates on actor and software interaction
b. misses errors in specifications
c. misses errors in subsystem interactions
d. both a and b
ANSWER : a
24 : Deep structure testing is not designed to
a. examine object behaviors
b. exercise communication mechanisms
c. exercise object dependencies
d. exercise structure observable by the user
ANSWER : d
25 : Random order tests are conducted to exercise different class instance
life histories.
a. True
b. False
ANSWER : a
26 : Which of these techniques is not useful for partition testing at the
class level
a. attribute-based partitioning
b. category-based partitioning
c. equivalence class partitioning
d. state-based partitioning
ANSWER
: c
27 : Multiple class testing is too complex to be tested using random test
cases.
a. True
b. False
ANSWER
: b
28 : Tests derived from behavioral class models should be based on the
a. data flow diagram
b. object-relation diagram
c. state diagram
d. use-case diagram
ANSWER
: c
29 : Client/server architectures cannot be properly tested because network load
is highly variable.
a. True
b. False
ANSWER : b
30 : Real-time applications add a new and potentially difficult element to
the testing mix
a. performance
b. reliability
c. security
d. time
ANSWER : d
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