Testing Written Test Questions

• 1 : With thorough testing it is possible to remove all defects from a program prior to delivery to the customer.
• a. True b. False
• The correct answer is b
• 2 : Which of the following are characteristics of testable software?
• a. observability b. simplicity c. stability d. all of the above
• The correct answer is 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
• The correct answer is 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
• The correct answer is 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
• The correct answer is e
• 6 : Program flow graphs are identical to program flowcharts.
• a. True b. False
• The correct answer is 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 programThe correct answer is 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
• The correct answer is 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
• The correct answer is 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
• The correct answer is 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
• The correct answer is 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
• The correct answer is d
• 13 : Graph-based testing methods can only be used for object-oriented systems
• a. True b. False
• The correct answer is 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
• The correct answer is a
• 15 : Boundary value analysis can only be used to do white-box testing.
• a. True b. False
• The correct answer is 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
• The correct answer is 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
• The correct answer is 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
• The correct answer is a
• 19 : Encapsulation of attributes and operations inside objects makes it easy to obtain object state information during testing.
• a. True b. False
• The correct answer is 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
• The correct answer is 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
• The correct answer is b
• 22 : Testing OO class operations is made more difficult by
• a. encapsulation b. inheritance c. polymorphism d. both b and c
• The correct answer is 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
• The correct answer is 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
• The correct answer is d
• 25 : Random order tests are conducted to exercise different class instance life histories.
• a. True b. False
• The correct answer is 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
• The correct answer is c
• 27 : Multiple class testing is too complex to be tested using random test cases.
• a. True b. False
• The correct answer is 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
• The correct answer is c
• 29 : Client/server architectures cannot be properly tested because network load is highly
• variable.
• a. True b. False
• The correct answer is b
• 30 : Real-time applications add a new and potentially difficult element to the testing mix
• a. performance b. reliability c. security d. time
• The correct answer is d