IREB Questions And Answers


Exam Name: IREB Certified Professional for Requirements Engineering

Updated: 2020-10-29

Q & A: 76

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Question No : 1

Requirements elicitation: Your company has received a customer contract to develop a system for the scheduling of the customer¡¯s delivery vans. It is your task to identify the requirements for this scheduling system. You have arranged appointments for interviews with three key members of the customer¡¯s staff, and are now preparing interview questions.
Which of the questions below are appropriate interview questions for the requirements elicitation? (2 Points)
A. What are the most important technical terms for the application and how are they defined?
B. If the delivery deadline is not met, is a contract penalty to be paid?
C. What data quantities / data rates are to be processed?
D. When is the installation of the completed system to be started?
Answer: C

Question No : 2

For an interview, you have prepared a use case diagram for the system to be specified. You decide to talk through a use case in detail with the stakeholder. You receive very useful feedback which must now be documented.
Which of the following means of expression is least suitable to document the details of a single use case? (1 Point)
A. State diagram
B. Activity diagram
C. Natural language
D. Context diagram
E. Class diagram
Answer: D

Question No : 3

Which two statements are correct with regard to the introduction of a requirements engineering tool? (2 Points)
A. The introduction of a tool defines the future requirements engineering approach
B. Risks associated with the introduction can be identified through a pilot operation
C. The requirements engineering processes must be clearly defined before introduction
D. The license costs are generally the greatest cost block relating to the introduction of a requirements engineering tool
Answer: C,D

Question No : 4

You are to create a requirements specification for an internet banking software. The system shall perform bank credit transfers and therefore receives from the user, among other information, the bank identification code and the name of the bank. Now things have changed so that only the bank identification code must be entered by the user and the bank name is no longer required.
On which part of your documentation do you most likely have to work in order to incorporate this change? (2 Points)
A. Nowhere, since this is a detail for the architecture.
B. In the chapter in which the states of the system are described.
C. As a change in the goals has been communicated, the goals in the specification must be updated.
D. If it is about inputs and outputs of the system, this changehas to be worked into the context diagram.
E. You have to adjust the class model and/or the data model, which describe the structure of the system¡¯s input and output data.
Answer: C,D

Question No : 5

As a requirements engineer, you deal with a diverse range of requirements. A template for natural language functional requirements can help you to formulate different forms of system activities in a more precise way.
Which two kinds of system activities are among those supported? (1 Point)
A. User interaction
B. Technical requirement
C. Quality requirements
D. Independent system activity
E. System requirement
Answer: A,D

Question No : 6

You have to elicit requirements for a sales software that shall operate worldwide. In the initial elicitation of requirements, participants from all 30 branches should be involved. Project management has decided that for the documentation of the initial requirements a wiki system is to be used.
Which of the following statements is most likely correct? (1 answer)
Remark: A wiki system is a web-based system that allows several people to work on one document collaboratively. The respective revisions are visible for all people involved. A prominent example of a wiki system is the online encyclopedia Wikipedia.
A. The approach makes no sense as a wiki system is no requirements management tool.
B. The approach makes sense as all people involved can collaboratively write down and comment on the initial requirements.
C. The approach makes no sense as the initial requirements analysis has to be performed by a requirements engineer in form of interviews.
D. The approach makes sense as wiki systems provides a history (of the modifications made).
Answer: B

Question No : 7

You are assigned to carry out and document a system and context delimitation for a software system that is to be developed.
What diagram is least suited for the representation of the delimitation? (1 Point)
A. Class diagram
B. Use case diagram
C. Statediagram
D. Context diagram with data flows
Answer: C

Question No : 8

In order to document a door system for a underground railway system, the following activity diagram has been modelled. You reconcile this diagram with your notes.
Which two of the following notes were not represented in the diagram? (1 Point)
Your notes:
A. Double pressing of the door button countermands the currently running action.
B. The tread is pulled in once the door is closed.
C. The light-emitting diode is deactivated at the end of the process.
D. If the door is open, it is subsequently closed.
E. If the door is closed, it is subsequently opened.
Answer: A,C

Question No : 9

Which two aspects have to be most likely taken into consideration in the choice of suitable elicitation techniques for an administrative software system? (2 answers)
A. Availability of the stakeholders
B. Age of the stakeholders
C. Project deadlines and budget
D. Tools applied
E. Business the system is to be applied in
Answer: AC

Question No : 10

Assess the following statements about the natural language documentation of requirements in terms of being applicable or not applicable. (2 Points)


Question No : 11

You model invoices and invoice items with a UML class diagram. The total amount of an invoice is calculated by summing up all individual invoice items. This means that an invoice showing 5 article prices contains 5 invoice items.
What model element most accurately describes the relationship between invoice and invoice items? (1 Point)
A. Composition
B. Aggregation
C. Generalisation
D. Association
Answer: A

Question No : 12

The following state diagram is to be found in a requirements specification for an order management system.
Which of the following requirements is consistent with the diagram and which are not? (2 Points)


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