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1 | |
Which of the following is true? |
| | A) | Identifying what messages are passed between objects is a straightforward process. |
| | B) | Message passing is a metaphor used to describe object interaction. |
| | C) | Message passing is only concerned with query operations. |
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2 | |
Which of the following is true about boundary objects? |
| | A) | The identification and specification of boundary objects is purely a design activity. |
| | B) | The identification and specification of boundary objects is part of requirements specification. |
| | C) | The identification and specification of boundary objects is considered in both analysis and design but in different ways. |
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3 | |
Which is the correct UML definition of a collaboration? |
| | A) | A collaboration describes the messages between objects. |
| | B) | A collaboration describes objects that share functionality. |
| | C) | A collaboration describes the structure of instances playing roles in a behaviour and their relationships. |
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4 | |
An interaction sequence diagram drawn during analysis differs from one drawn during design which of the following ways? |
| | A) | It normally does not include design objects or detailed specifications of message signatures. |
| | B) | It does not include boundary objects. |
| | C) | It does not include control objects. |
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5 | |
On the following figure which symbol represents a process activation on a sequence diagram? <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::Fig. 9.5::/sites/dl/free/0077098641/41598/ch9_p5.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif">Fig. 9.5 (3.0K)</a>]]>
Fig. 9.5 |
| | A) | 1 |
| | B) | 2 |
| | C) | 3 |
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6 | |
Which of the labelled symbols in the following diagram represents a synchronous message? <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::Fig. 9.6::/sites/dl/free/0077098641/41598/ch9_p6.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif">Fig. 9.6 (2.0K)</a>]]>
Fig. 9.6 |
| | A) | 1 |
| | B) | 2 |
| | C) | 3 |
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7 | |
What is meant by the term ‘thread of control’ in the context of concurrent behaviour? |
| | A) | A thread of control is a weak part of the control system. |
| | B) | A thread of control is the mechanism that controls concurrent behaviour. |
| | C) | A thread of control is an execution pathway that may occur simultaneously with other execution pathways. |
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8 | |
Which of the following is an appropriate way of managing complex behaviour on an interaction sequence diagram? |
| | A) | A group of objects can be represented by a single lifeline. |
| | B) | Some messages are omitted to reduce the complexity. |
| | C) | Some objects are omitted from the diagram to reduce the complexity. |
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9 | |
Collaboration diagrams differ from interaction sequence diagrams in the following way? |
| | A) | Collaboration diagrams cannot show the design detail that can be shown on a sequence diagram. |
| | B) | Collaboration diagrams only show the collaboration and not the sequence in which the messages are sent. |
| | C) | Collaboration diagrams show the links between the objects. |
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10 | |
In a collaboration diagram one message has the sequence number 5.1.1. Which of the following sequence numbers indicates the message that must be the immediate successor? |
| | A) | A message with the sequence number 5.1.2. |
| | B) | A message with the sequence number 5.1.1.1. |
| | C) | A message with the sequence number 5.2.1. |
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11 | |
Which of the following is a disadvantage of collaboration diagrams? |
| | A) | A collaboration diagram can only be used during analysis. |
| | B) | A collaboration diagram cannot include guard conditions. |
| | C) | A collaboration diagram is difficult to read if there are many messages between two objects. |
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12 | |
An interaction diagram should be consistent with the associated class diagram in various ways. Which of the following statements is true? |
| | A) | It is always correct to show a message between two objects if there is an association between their classes. |
| | B) | The sending object must have the object reference of the receiving object before sending an object-scope message. |
| | C) | A message should not be shown between two objects if there is no association between their classes. |
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2002 A McGraw-Hill Online Learning Centre