System Analysis and Design Set 21

Questions 201 to 210

201.	Which of the following is a measure of the strength of association among objects? (a) Cohesion (b) Coupling (c) Corollary (d) Interaction (e) Collaboration.
202.	Which of the following represent a built-in extensibility mechanism of the UML? (a) Note (b) Meta model (c) Stereotype (d) Class (e) Model constraints.
203.	Which of the following is a combination of data and logic that represents some real world entity? (a) Relationship (b) Object (c) Attributes (d) Method (e) Class.
204.	The rules and semantics of the UML can be expressed in a form known as (a) Object modeling language (b) Object constraint language (c) Object specification language (d) Object control language (e) Object driven language.
205.	A diagram that shows the hierarchical relationship between the modules of a computer program is called (a) System flow chart (b) Design class diagram (c) Data flow diagram (d) Structure chart (e) E-R diagram.
206.	Polymorphism can be described as (a) Hiding many different implementations behind one interface (b) Inheritance (c) Aggregation and association (d) Generalization (e) Composition.
207.	What phrase best represents a generalization relationship? (a) “Is a part of” (b) “Is a kind of” (c) “Is a replica of” (d) “Is composed of” (e) “Is related of”.
208.	In use-case model, an actor represents (a) A role that a human, hardware device, or another system can play (b) The same user that can perform several acts (c) A physical user regardless of its role (d) A physical system or a hardware device together with its interfaces (e) All (a), (b), (c) and (d) above.
209.	Which of the following is the multiplicity notation that represents optional many? (a) 0..X (b) 1..X (c) 1..1 (d) 0..* (e) 1..*.
210.	How is composition represented in a class diagram? (a) A circle (b) A rounded rectangle (c) An ellipse (d) A solid diamond (e) A solid circle.

Answers

201.	b	Coupling is a measure of the strength of association among objects.
202.	c	Stereotype is a built-in extensibility mechanism of the UML.
203.	b	Object  is a combination of data and logic that represents some real world entity.
204.	b	The rules and semantics of the UML can be expressed in a form known as Object Constraint Language.
205.	d	A diagram that shows the hierarchical relationship between the modules of a computer program is called Structure Chart.
206.	A	Polymorphism can be described as hiding many different implementations behind one interface.
207.	B	“Is a kind of”  is the phrase best represents a generalization relationship.
208.	A	In use-case model, an actor represents a role that a human, hardware device, or another system can play.
209.	D	0..* is the multiplicity notation that represents optional many.
210.	D	Composition represented in a class diagram is a solid diamond.

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