Certified Tester Advanced Level - Test Analyst V3.1 v7.0 (CTAL-TA)

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Total 99 questions

Supercar -
Supercar is an online vehicle sales website specializing in single manufacturers Sports Utility Vehicles (SUVs) and saloons. A vehicle has two key elements, power unit and body style. The manufacturer offers three choices of power unit: petrol, diesel and hybrid. There are 3 main body styles: Saloon, Hatchback and
SUV. SUVs only come as petrol and diesel options. Hybrid is available for Hatchback only. The site will allow an order to be processed if the chosen vehicle configurations are in stock, otherwise a message will be displayed asking the user to try again later.
Based on the specification the following classification tree has been developed:

Based on the "Supercar" classification tree the following positive test cases have been created:

Which test case is needed to complete the set?

  • A. Power Unit: Hybrid, Body Style: Saloon
  • B. Power Unit: Diesel, Body Style: Hatchback
  • C. Power Unit: Petrol, Body Style: Saloon
  • D. Power Unit: Hybrid, Body Style: Hatchback


Answer : D

Tax system -
A tax system needs to be updated due to new legislation. For a person with a salary of less than 20.000 and who is married, the tax needs to be re-calculated. If the person also has more than two and less than five children, an additional 10% reduction is applicable.
How many cases are required to test the "Tax system" specification using a decision table which is not collapsed?

  • A. 2
  • B. 4
  • C. 6
  • D. 8


Answer : D

Tax system -
A tax system needs to be updated due to new legislation. For a person with a salary of less than 20.000 and who is married, the tax needs to be re-calculated. If the person also has more than two and less than five children, an additional 10% reduction is applicable.
How many input classes can be distinguished when applying equivalence partitioning to the "Tax System" specification?

  • A. 5
  • B. 6
  • C. 7
  • D. 8


Answer : B

Tax system -
A tax system needs to be updated due to new legislation. For a person with a salary of less than 20.000 and who is married, the tax needs to be re-calculated. If the person also has more than two and less than five children, an additional 10% reduction is applicable.
Applying equivalence partitioning to the "Tax System" specification, which of the following set of equivalence classes is most effective in testing the processing the number of children?

  • A. 2, 4 and 6 children
  • B. 2, 4 and 5 children
  • C. 1, 3 and 6 children
  • D. 3, 4 and 6 children


Answer : B

Consider the following decision table,

How many cases are left when this decision table is collapsed?

  • A. 2
  • B. 3
  • C. 4
  • D. 5


Answer : C

A temperature unit holds the temperature between 10 degrees Celcius and 10 degrees Celcius. If the temperature drops below 10 or rises above 10 then an alarm rings. Boundary Value Analysis tests are drawn up using the approach of two test cases per boundary. The temperatures to be tested are:

  • A. 11, 10, -11, -10
  • B. 11, 10, 9, -11, -10, -9
  • C. 11, 9, -9, -11
  • D. 10, 9, -9, -10


Answer : A

For a tax system the earnings 4.000 are tax free, the following 1.500 are charged at 10%, the following 28.000 at 20% and the remainder above 40%. All values are rounded to 1.
What test case could result from a boundary value analysis?

  • A. 1500
  • B. 33501
  • C. 4499
  • D. 28001


Answer : B

A specification states: "If the fossil is Jurassic in origin then it must be catalogued under Mesozoic post Triassic and cross referred to politic limestone.
If it is a tooth, then it must be catalogued under Dental remains. If the fossil is both Jurassic in origin and a tooth it will be catalogued under Mesozoic post Triassic and cross referred to politic limestone only. "
The tester analyses this for decision table testing and finds the following conditions and actions:

C1: Jurassic -

C2: tooth -
A1: Catalogue as Mesozoic post Triassic
A2: Cross refer to politic limestone

A3: Catalogue as -

Dental remains -
How many test cases will a collapsed decision table have?

  • A. 2
  • B. 3
  • C. 4
  • D. 6


Answer : B

A route calculation for a car navigation system has been developed using the following state table:

How many test cases are needed to achieve 0-switch coverage?

  • A. 3
  • B. 6
  • C. 7
  • D. 12


Answer : B

How many invalid test cases can be identified from the "Route Calculation" state table provided?
You may assume all actions are different and independent.

  • A. 6
  • B. 8
  • C. 102
  • D. 12


Answer : A

Apart from state transition testing, which other specification-based technique would you additionally choose to test the interfaces between components of "Route
Calculation" and thus typically find different types of defects?

Identify the MOST likely technique from the following list.

  • A. Equivalence Partitioning
  • B. Use Case Testing
  • C. Orthogonal Arrays
  • D. Decision Testing


Answer : A

A diamond retailer is introducing a new stock taking system. Each diamond is assigned a character that represents the colour. The valid domain for the character ranges from D to Z. The colour is then graded using the following scale:

Which of the following test sets will provide the best equivalence partitioning coverage?

  • A. D, F, G, H, K, M, N, P, T, Z
  • B. D, G, K, N, S
  • C. A, E, H, L, P, T, §
  • D. E, H, L, M, U, €


Answer : C

Analyzing the requirement, "The system shall allow cash advances of at least 200 Euros for all supported credit cards. The correct list of credit cards is American
Express, Diners, VISA, Mastercard and Eurocard." There are arguments to be made for several test design techniques.
Which of the following test design techniques is LEAST likely to be used for identifying test cases for the requirement?

  • A. Boundary value analysis
  • B. Equivalence Partitioning
  • C. Classification Tree Method
  • D. State Transition Testing


Answer : D

For an ATM banking project introduced earlier, "When the user first inserts a valid credit card type, the system considers the user to be in an unauthenticated state. When requesting a cash advance, the user must be in an authenticated state. The user authenticates by entering the proper PIN code. When authenticating the user, the system shall allow the user to enter their PIN code up to three times before failing the authentication and rejecting the card. On the first and second try, the system shall prompt the user to re-enter the PIN code."
Suppose you are concerned that, depending on the exact number of invalid PIN codes entered, the system might behave improperly. Which of the following test design techniques is specifically targeted at such failures?

  • A. Equivalence Partitioning extended by boundary value analysis
  • B. Pairwise Testing with orthogonal arrays
  • C. State Transition Testing using 1-switch coverage
  • D. Classification Tree Method


Answer : C

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

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


Answer : B

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Total 99 questions