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| Section | Objectives |
|---|---|
| Software Defect Prevention | - Supporting Phase Containment - Mitigating Recurrence of Defects - Defect Prevention Practices |
| The Tasks of the Test Analyst in the Test Process | - Involvement in Test Activities - Testing in the Software Development Lifecycle - Tasks Related to Work Products |
| The Tasks of the Test Analyst in Risk-Based Testing | - Risk Control - Risk Analysis |
| Testing Quality Characteristics | - Compatibility Testing - Functional Testing - Flexibility Testing - Usability Testing |
| Test Analysis and Test Design | - Data-Based Test Techniques - Experience-based Testing - Behavior-Based Test Techniques - Rule-Based Test Techniques |
>> CTAL-TA_V4.0 New Learning Materials <<
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NEW QUESTION # 24
A pricing system for determining the postage cost of a company's letters examines two input variables, representing the length L of the envelope in centimeters and the weight W of the letter in grams. Envelopes can only have three lengths: 15 cm Small, 20 cm Standard, and 25 cm Large.
For standard length envelopes, 20 cm, a premium postage rate is applied if the weight is equal to or greater than 50 grams. This is represented as:
IF L = 20 AND W > = 50 THEN RETURN Cost "Premium rate"
Which set of test points, each represented as variables L, W , achieves 100% simplified domain coverage for the Standard letter postage cost domain?
Answer: D
Explanation:
The correct answer is B . Simplified domain coverage requires boundary-focused ON and OFF points. CTAL- TA v4.0 states that for borders defined by < , #, > , or #, simplified domain coverage requires one ON and one OFF point. For an equality border, it requires one ON point and two OFF points on different sides of the border, with OFF points as close as possible according to the given precision.
The premium Standard-letter domain is defined by L = 20 and W > = 50 . For the W > = 50 border, (20,50) is the ON point because 50 is included, and (20,49) is the closest OFF point. For the L = 20 equality border, (20,50) also serves as the ON point, while (15,60) and (25,60) are OFF points on the two available sides of the Standard envelope length, because envelope lengths are restricted to 15, 20, and 25 cm.
Option A includes unnecessary extra points and does not represent the minimal required simplified coverage set. Option C uses 19 and 21, which are invalid envelope lengths. Option D misses the closest OFF point for the inclusive weight boundary because it uses 51 instead of 49. Reference: CTAL-TA v4.0, Section 3.1.1 Domain Testing , simplified domain coverage.
NEW QUESTION # 25
You are testing the functional correctness of an application which allows the driver of a car to control if the air that enters the passenger compartment is fresh or recycled. The car may be ordered in various configurations:
* Engine Size, can be: 1500cc, 1900cc, 2200cc, 2500cc
* Gearbox type, can be: automatic, manual 5-speed, manual 6-speed
* Cruise control, can be: yes or no
* Electric sunroof, can be: yes or no
It is expected that the most popular configuration will have a 1900cc engine and a manual 5-speed gearbox with cruise control and no electric sunroof. In order to achieve full BASE CHOICE coverage, how many configurations must be tested?
Answer: A
Explanation:
The correct answer is D . CTAL-TA v4.0 defines base choice coverage as a combinatorial coverage criterion where a base value is selected for each parameter, forming one base coverage item. Then, additional coverage items are created by replacing one base value at a time with each non-base value while all other parameters remain at their base values.
The base configuration is explicitly given: 1900cc engine , manual 5-speed gearbox , cruise control = yes , and electric sunroof = no . That gives the first test configuration. Then each non-base value must be tested once while the other values remain fixed at the base configuration. Engine Size has four values, so there are 3 non-base engine values: 1500cc, 2200cc, and 2500cc. Gearbox type has three values, so there are 2 non-base gearbox values: automatic and manual 6-speed. Cruise control has one non-base value: no. Electric sunroof has one non-base value: yes.
Total configurations = 1 base + 3 + 2 + 1 + 1 = 8 . Option A , 48, is exhaustive testing: 4 ร 3 ร 2 ร 2. Options B and C do not match the base choice formula. Reference: CTAL-TA v4.0, Section 3.1.2 Combinatorial Testing .
NEW QUESTION # 26
You are working on a project to build a purchasing system. The main requirements for the system are that it shall:
* Allow users to enter details of items that they wish to have purchased and, from these details, create a purchase request.
* Take each purchase request through a workflow that will allow the requestor's line manager to approve the request, reject it or return it for clarification / modification.
* Forward approved requests to the Purchasing Department.
* Allow purchasers to find the best available supplier for each approved request and place the request on that supplier as a purchase order.
The solution is being developed according to the company's traditional V-model methodology. The requirements are clearly documented and include a business process model. Operational profiles have been created to guide performance testing.
Initial item entry will involve a check that each item entered exists on the master stock file and that the user is entitled to request it; this depends on user role and grade. Line manager authorization will be assisted by a recommendation made by the system according to relevant business rules, although the manager can override this recommendation. For approved requests, the workflow will continue to support the process through to placing of the purchase order.
Planning has begun for system testing and the Test Manager has asked you, the senior TA, to help with it.
What would be the MOST effective techniques for functional testing of this project?
a) Combinatorial testing
b) Random testing
c) CRUD testing
d) State transition testing
e) Scenario-based testing
f) Decision table testing
g) Exploratory testing
Answer: D
Explanation:
The correct answer is D because the scenario gives three strong test-basis signals: a workflow, a business process model, and business rules. CTAL-TA v4.0 classifies relevant black-box techniques into data-based, behavior-based, and rule-based techniques, and explicitly includes state transition testing, scenario-based testing, and decision table testing within Chapter 3 test analysis and design. It also requires the Test Analyst to select appropriate techniques for a given situation.
State transition testing fits the purchase request workflow because requests move between states such as created, approved, rejected, returned for clarification, forwarded, and converted to purchase order. CTAL-TA states that behavior-based techniques derive tests from state-dependent or dynamic behavior. Scenario-based testing fits because the requirements include a business process model and end-to-end purchasing flows.
CTAL-TA states that scenario-based testing evaluates behavior in realistic workflows and may use activity diagrams, use cases, flowcharts, or BPMN models. Decision table testing fits because entitlement checks and manager recommendations are driven by business rules involving role, grade, and authorization logic. Rule- based techniques verify stateless business-rule behavior.
Combinatorial testing may help with input combinations, but it is not the best overall functional set here.
Random and exploratory testing are weak choices because the requirements are clear and formal.
NEW QUESTION # 27
A simple DVD player is described in the following state transition diagram:
States shown in the diagram:
All round trips are feasible, even those that do not start at OFF. How many test cases will be needed for complete round-trip coverage?
Answer: B
Explanation:
The correct answer is B , because complete round-trip coverage requires every feasible round trip in the state model to be covered, not only those that start from the initial OFF state. CTAL-TA v4.0 explicitly includes state transition testing with N-switch and round-trip coverage as the focus of its state transition topic. A round trip is a path that starts and ends in the same state, normally without repeating an intermediate state.
The feasible round trips are:
* OFF # PLAY # OFF
* PLAY # OFF # PLAY
* OFF # REC # OFF
* REC # OFF # REC
* REC # REC PAUSE # REC
* REC PAUSE # REC # REC PAUSE
* PLAY # PLAY PAUSE # PLAY
* PLAY PAUSE # PLAY # PLAY PAUSE
* OFF # REC # REC PAUSE # OFF
* REC # REC PAUSE # OFF # REC
* REC PAUSE # OFF # REC # REC PAUSE
That gives 11 round trips. The warning in the question is important: if only OFF-starting round trips were counted, the answer would be too low. Option A overcounts by adding a non-modeled or duplicate round trip.
Options C and D miss feasible non-OFF-starting round trips. Reference: CTAL-TA v4.0, Section 3.2.2 State Transition Testing , round-trip coverage.
NEW QUESTION # 28
A Customer Relationship Management (CRM) system will be developed for a company that runs a chain of hotels. These are some of the requirements relating to staff in the call center.
* R1. High. An operator shall be able to find and see the details of a customer's booking. The data that may be used for the search include customer name, customer registration number (in the company's loyalty enrolment scheme) and booking reference.
* R2. High. An operator shall be able to amend a customer's booking. The data that may be amended include check-in and check-out dates, hotel, room type and tariff (with / without breakfast).
* R3. High. Before a booking amendment is accepted, the system shall display to the operator any difference in price with respect to the original booking. The operator shall confirm that the customer accepts the revised price and then the system shall record the accepted amendment.
* R4. Medium. Details of the amended booking shall be sent to the customer (see requirements for original customer booking for details).
* R5. High. Details of the extra amount payable shall be sent to the billing system for customer invoicing (see requirements for invoicing of the original customer booking for details).
You have been asked to review these requirements using this checklist:
* Specific - does each requirement deal with only a single aspect of the solution?
* Clear - is each requirement expressed in an unambiguous way with no possibility of interpretation or uncertainty about its meaning?
* Complete - does the set of requirements cover all of the stakeholders' reasonable needs?
* Unique - does each requirement address something that no other requirement also covers?
Assume that the other requirements referred to by R4 and R5 have been reviewed with a satisfactory outcome.
Considering these five requirements, to which checklist items would you answer 'No'?
Answer: D
Explanation:
The correct answer is D . The two checklist items that should be answered No are Clear and Complete .
CTAL-TA v4.0 places requirements review and defect prevention under the Test Analyst's static testing responsibilities. It also identifies perspective-based reading and checklist-based review as techniques for finding defects in the test basis before test design and execution. The official sample-answer material confirms that checklist items should support detection of defects such as ambiguity, incompleteness, and inconsistency, rather than merely restating requirements.
The requirements are not fully clear because several phrases leave room for interpretation. For example, R1 says customer name may be used for searching, but it does not clarify what happens if multiple bookings match. R3 says "any difference in price" and "original booking," which may be ambiguous if multiple amendments occur. The requirements are also not fully complete because R5 only addresses an "extra amount payable." It does not cover the reasonable business case where the amendment reduces the price and a refund, credit, or billing adjustment is needed.
The requirements are broadly specific enough for this review because each requirement addresses a distinct call-center function. They are also unique because no requirement duplicates another: search, amend, price confirmation, customer notification, and billing interface are separate concerns. Reference: CTAL-TA v4.0, Software Defect Prevention , reviews, checklist-based review, and perspective-based reading.
NEW QUESTION # 29
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