BITS WILP Object Oriented Analysis and Design Quiz-3 2017-H1

BITS WILP Object Oriented Analysis and Design Quiz-3 2017-H1

Question 1

F2183:How to change our design to reuse instances of those small objects and use memory efficiently?

Select one:

a. Use Decorator

b. Use Flyweight

c. Use Facade

d. Use Adapter

Feedback

The correct answer is: Use Flyweight

Question 2

F2200:Which of following are either structural or creaor design patterns?

Select one:

a. Decorator

b. All the given choices

c. Facade

d. Decorator and Facade

e. Singleton

Feedback

The correct answer is: All the given choices

Question 3

F2110:Which of the following is false?

Select one:

a. Dependencies limit reusability

b. Cyclic dependencies of packages allows reusability

c. A Class (Package) cannot be reused without reusing the Class (Package) on which it depends

d. A Dependency between Packages indicates (a Class(es) in ) one Package in some way relies on (a Class(es) in ) the other Package

Feedback

The correct answer is: Cyclic dependencies of packages allows reusability

Question 4

F2155: Which of the following is NOT creational design pattern?

Select one:

a. Factroy Method

b. SIngleton

c. String builder

d. Abstract Factory

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The correct answer is: String builder

Question 5

F2107a:Which of the following statements are true?

Select one:

a. Derived associations and attributes can be found in class diagrams only.

b. Within a specification perspective, derived associations and attributes indicate an implementation option e.g. optimization and performance considerations.

c. Within a specification perspective, derived associations and attributes indicate a constraint between values.

d. All the given choices

Feedback

The correct answer is: Within a specification perspective, derived associations and attributes indicate a constraint between values.

Question 6

F2135:Higher coupling can lead to:

Select one:

a. More obstacles to code reuse

b. More difficulty in understanding

c. All the given choices

d. Changes propagating excessively

Feedback

The correct answer is: All the given choices

Question 7

F2149: Law of Demeter states that

Select one:

a. Don’t talk to strangers

b. Principle of Least Knowledge

c. Write shy codes

d. Only talk to your immediate friends

e. All the given choices

f. Minimize coupling

Feedback

The correct answer is: All the given choices

Question 8

F2154:Which of the following statements are true for Singleton pattern?

Select one:

a. Both A and B

b. Define a protected method, "getInstance()", of the class that returns the singleton.

c. A only

d. Exactly one instance of a class is allowed, it is a singleton. Objects need a global and single point of access.

Feedback

The correct answer is: Both A and B

Question 9

F2175: Which of following is NOT component of Factory Method pattern?

Select one:

a. Concrete Product

b. Product

c. Concrete Creator

d. Concrete Strategy

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The correct answer is: Concrete Strategy

Question 10

F2143:Which is one of the simplest of the principles, and the one of the hardest to get right?

Select one:

a. ISP

b. DIP

c. SRP

d. OCP

Feedback

The correct answer is: SRP

Question 11

F2194:Allow an object to alter its behavior when its internal state changes. The object will appear to change its class.

Select one:

a. Adapter

b. Interpreter

c. Composite

d. State

Feedback

The correct answer is: State

Question 12

F2185:_____ pattern decouple an from its implementation so that independently abstraction implementation the two can vary independently.

Select one:

a. Composite

b. Bridge

c. Decorator

d. Adapter

Feedback

The correct answer is: Bridge

Question 13

F2165: GoF patterns can be classified as

Select one:

a. All the given choices

b. Structural

c. Creational

d. Behavioural

Feedback

The correct answer is: All the given choices

Question 14

F2103a:Which statements are true about Class Diagrams?

Select one:

a. class but not the other way round.

b. From the conceptual perspective, associations represent conceptual relationships between classes

c. Naming role is optional. If missing, it is named after the source class

d. Within the specification perspective, associations represent methods.

e. Multiplicities are normally 0, 1, *. It does not support for a range number e.g. 2-4

f. From the conceptual perspective, associations have no arrow heads meaning that they are non-directional

Feedback

The correct answer is: From the conceptual perspective, associations represent conceptual relationships between classes

Question 15

F2177:What is TRUE about composite pattern?

Select one:

a. B: Composite lets clients treat individual objects and compositions of objects uniformly.

b. A: Compose objects into tree structures to represent part-whole hierarchies.

c. B only

d. A and B

Feedback

The correct answer is: A and B

Question 16

F2133:Which of the following pattern generally is key to loose coupling and high cohesion?

Select one:

a. High Cohesion

b. Low Coupling

c. Creator

d. Information Expert

Feedback

The correct answer is: Information Expert

Question 17

F2158:Use _______ to build, step-by-step, complex objects

Select one:

a. Builder

b. Abstracct Factory

c. Factory Method

d. Fabrication

Feedback

The correct answer is: Builder

Question 18

F2134:Which pattern is to be used to support low dependency, low change impact, and increased reuse?

Select one:

a. Fabrication

b. Low Coupling

c. Cohesion

d. Expert

Feedback

The correct answer is: Low Coupling

Question 19

F2120:Which of following is NOT UML keyword?

Select one:

a. Unique

b. propertyString

c. Ordered

d. List

Feedback

The correct answer is: propertyString

Question 20

F2112:Which of the following statement is true? The contents of a Package can be :

Select one:

a. another Package diagram

b. a list of classes

c. class diagram

d. All the given choices

Feedback

The correct answer is: All the given choices

Question 21

F2157:________ provide an interface for creating families of related or dependent objects without specifying their concrete classes.

Select one:

a. Singleton

b. Fabrication

c. Abstracct Factory

d. Factory Method

Feedback

The correct answer is: Abstracct Factory

Question 22

F2102a:Package diagrams are designed for:

Select one:

a. reducing dependency

b. depicting the overall structure of a system

c. All the given choices

d. assisting deployment

Feedback

The correct answer is: depicting the overall structure of a system

Question 23

F2141:What is main benifit of Indirection?

Select one:

a. More number of small classes

b. Higher copuling

c. Lower coupling

d. Lower cohesion

Feedback

The correct answer is: Lower coupling

Question 24

F2181:Which of the following is NOT true about Facade?

Select one:

a. Provide a unified interface to a set of interfaces in a subsystem.

b. Facade defines a higher-level interface that makes the subsystem easier to use

c. It decreases coupling

d. It increases copuling

Feedback

The correct answer is: It increases copuling

Question 25

F2102:Package diagrams are designed for:

Select one:

a. All the given choices

b. Organizing a large project into components

c. reducing dependency

d. assisting deployment

Feedback

The correct answer is: Organizing a large project into components