ISTQB CTAL-TA 問題集

質問 1：
Which of the following descriptions is an example of the use of defect taxonomies?
Number of correct answers: 1
A. Running tests with the aim of finding as many defects as possible
B. Using a list of known defect types to penetrate the security of computer systems
C. Grouping defects found in execution by functional areas
D. Following a defect management process through testing
正解：B

質問 2：
Which ONE of the following test tools would MOST likely be used as part of test design?
A. Dynamic analysis tools.
B. Comparison tools.
C. Coverage tools.
D. Classification tree tools.
正解：D

質問 3：
When applying for health insurance from Health4You, applicants are categorised according to their age, sex, the number of units of alcohol they consume in an average week, Body Mass Index (BMI), whether in full-time work and whether a smoker.
Insurance is offered and the premium is calculated according to the following rules:
Insurance cover is NOT given to those aged 70 or more, or below 18.
Those who consume on average more than 14 units of alcohol a week have an additional premium of £25 per month.
Those with a BMI greater than 35 are NOT given insurance cover.
Smokers have an additional premium of £20 per month.
Those in full-time employment have a premium reduction of £20 per month.
How many test cases are required to give full coverage for the above rules when using a decision table that excludes rules containing infeasible combinations of condition values?
A. 160.
B. 48.
C. 128.
D. 96.
正解：D

質問 4：
You are working as a tester on a project to develop a point-of-sales system for grocery stores.
Which of the following is a product risk that could be identified for such a system?
A. Delivery of an incomplete test release to the first cycle of system test
B. Failure to accept allowed credit cards
C. The arrival of a more reliable competing product on the market
D. An excessively high number of defect fixes fail during re-testing
正解：B

質問 5：
Study the "Supercar" classification tree, which of the following statements is correct?

A. Order information is missing
B. The classification tree is correct and complete
C. The options for "in stock" are missing
D. The error message is missing
正解：C

質問 6：
You are applying pairwise testing and using orthogonal arrays. The following steps are all part of the process to be followed.
i) Determine the number of choices for each variable
ii) Map the test problem onto the orthogonal array
iii) Construct the test cases
iv) Identify the variables
v) Locate an appropriate orthogonal array
What is the correct order of the above mentioned process steps?
A. iv, i, iii, v, ii
B. i, ii, iv, v, iii
C. iv, ii, v, iii, i
D. iv, i, v, ii, iii
正解：D

質問 7：
You work for a company who are pioneers in smart energy technology. One of their core products is their energy monitor in-home display device, used to display current and historic energy consumption data to many thousands of customers. It has been designed to integrate with their other smart-home products, including domestic lighting control systems via their HomeHub.
The company is to launch a new application for smartphones and tablets that will allow its customers to view their energy readings remotely and to view their daily budget usage based on seasonal historic data. The application must also support customers with disabilities.
The application is being delivered using a hybrid mix of agile and V-model methodologies over three iterations:
Iteration 1 - Development of the new application to work on the IOS operating system only.
Iteration 2 - Enhancement to the application to also work on the Android operating system.
Iteration 3 - Enhancement to the application to provide daily budget usage.
The test manager has provided you with a list of high-level test conditions and has asked you, as Test Analyst, to select the test conditions that address functional suitability, portability, usability and accessibility for Iteration 1 only.
Which TWO of the following test conditions should you select?
a. The application will accept voice recognition commands made via IOS devices.
b. The application is both learnable and operable for customers when used on Android devices.
c. There is no loss or corruption of data transmitted between the energy monitor and other smart- home products.
d. The daily budget usage is accurately calculated from seasonal historic data running on Android.
e. The application can be installed on all currently supported versions of IOS for all supported smartphones and tablets.
A. a, e.
B. a, b.
C. c, e.
D. b, d.
正解：A

質問 8：
A software component for a game application calculates a player's trophy level based on the following three input parameter values and their associated rules:
Time to Complete Game - Maximum 180 seconds. If the input value exceeds this amount, then the component outputs error message TIME1 Points Earned - minimum 5 to a maximum of 25. If the input value is outside this range the component outputs error message EM1 Level of Difficulty - from 1 to a maximum of 4. If the input value is outside this range the component outputs error message EM2 Assuming there are no error messages, a total score is then calculated by the component as (Points Earned * Level of Difficulty) The trophy levels are:
Blue - total score equal to or less than 40
Silver - total score > 40
Gold - total score > 70
Diamond - total score > 80
Platinum - total score > 90
The component then outputs the correct trophy level
Applying the Equivalence Partition test design technique to this component and assuming that each error message and each trophy level represents a separate output partition, what percentage of the total output partitions have been exercised by the following suite of test cases?
Player 1 - Points earned 25, level of difficulty 2, time 60 seconds.
Player 2 - Points earned 20, level of difficulty 3, time 120 seconds.
Player 3 - Points earned 30, level of difficulty 1, time 200 seconds.
A. 40%
B. 20%
C. 12.5%
D. 25%
正解：D

質問 9：
While identifying scenario's for the use case "copy A4 - A4" for a new copier, the following scenario's were identified:
Basic scenario: single side to single side
Deviations: single side to double side, copy of a set, copy using the automatic document feeder Failures: no paper in paper tray, paper jam, out of staples During interviews with both development and end-users it has been established that the failure scenarios can occur during the basic scenario and during each of the deviations.
How many test cases will be needed to achieve full coverage both for valid and invalid situations?
A. 10
B. 12
C. 16
D. 20
正解：C