The arrow heads are missing for the include and extend associations. Which direction should the arrow point to for the extend association?

towards the extended association

both ends should have an arrow head

towards the extending association

Why are there two final nodes in this diagram?

the post-conditions for each will be different

so there will be two different classes for the Class Diagram later

you must always have at least two final nodes

it is a mistake, there should only be one

What is the relationship between an activity diagram and a use-case diagram?

a single use case can be processed into an activity diagram

the actors in a use case diagram become the activities in an activity diagram (it is no coincidence that the UML specification contains ACT ors and ACT ivities)

an activity diagram determines the sequence in which use cases are applied

the top and and bottom nodes in an activity diagram correspond respectively to the «include» and «extend» stereotypes of a use-case diagram

In what order will Passenger Boarding and Loading Luggage into Airplane be executed?

they can happen at the same time

Passenger Boarding first, then Loading Luggage into Airplane

Loading Luggage into Airplane first, then Passenger Boarding

What is NOT a problem with the activity diagram?

the number of attempts is not reduced each time

it could run into an infinite loop if the game ends in a tie

an activity has multiple connections into it, a merge node is preferred

In front of ‘amount’ in the Payment class is a minus sign (-). What is the meaning of this minus sign?

it indicates that ‘amount’ is private and is only accessible from the same class

it indicates that ‘amount’ is protected and is only accessible from the same class or sub-classes

it indicates that ‘amount’ is hidden and cannot be shown to the user of the class

it indicates that ‘amount’ is public and is accessible from any class

In UML, model elements such as ‘TakeOff()’, ‘Board()’, ‘CheckIn()’ are known by a variety of names. Which list of synonyms below best describes this type? ‘TakeOff ()’ is also called...

an attribute, technique or method

Is it possible for an ‘Aircraft’ to request takeoff clearance using RequestTakeoff() in the ‘Flight’ class?

yes, but only if they are linked to one or more flights

yes, but only if it is linked to exactly one flight

no, aircraft cannot access any of the flights methods as the Flights relationship is marked as private

no, because in normal airport operations this is done by the flight captain

How should the relationship between Monster and GameCharacter be interpreted?

a Monster is part of the collection of GameCharacters in the GameWorld

each GameCharacter uses attributes and/or methods of one or more Monsters

How many Trolls are in the GameWorld according to this model?

0 or more, indeterminate maximum

Both the Monster and the Troll class contain an ‘Attack’ method. What does this mean?

the Attack method in Troll most likely specifies specific behavior that overrides the more generic behavior in the Monster class.

this is a mistake in the diagram. Classes in this hierarchy cannot contain methods with the same name.

this is correct, the methods in the parent class always have to be duplicated in the model for child classes. The methods Move() and TakeDamage() are still missing in the Monster and Troll classes.

whenever the Attack method is called on a Troll, both the code from the Monster class and the Troll class will be executed.

Which of the following is true?

every composition is also an aggregation, and every aggregation is also an association

every association is also an aggregation, and every aggregation is also a composition

every aggregation is also an association, and every association is also a composition

every composition is also an association, and every association is also an aggregation

To how many aircrafts can a flight, according to this model, be linked?

between 1 and an unknown maximum

between 0 and an unknown maximum

How many methods and attributes does a ‘Passenger’ have?

2 methods; attributes cannot be determined

Who creates a Class Diagram?

the Designer together with the Developer

the Client together with the Designer

Why are two associations modelled between Flight and Airport? Choose the best answer:

a flight always has one point of departure and one point of arrival. Stopovers (intermediate landings) for the same flight are not visible in this system

an airport cannot be both point of departure and point of arrival for the same flight. This is prevented by modeling 2 separate associations

a flight can have any number of points of departure and any number of points of arrival before reaching its final destination. The two separate associations are there to ensure stopovers (intermediate landings) for the same flight are visible

an airport can handle only departing flight and one arriving flight at the same time. It is not possible for 2 flights to depart (or arrive) at the same time. This is prevented by modeling two associations

What is the purpose of a state diagram?

to gain an understanding of the life cycle of a class, allowing it to be refined

to model the sequence of communications (messages) between the various elements of a system

to further detail the object lifelines of a sequence diagram

to model states so that they can be converted to methods in the class diagram

While someone is looking at some device info, someone else might actually change the state of the device physically in the house (e.g. you are looking online at work to see if your lights at home are switched off, but while doing so, someone at your house actually switched them off). How can this be added?

by adding a self-transition (a transition from and to the same state) at OnOffDeviceInfo and OpenClosedDeviceInfo with ‘refresh()’

by adding a self-transition (a transition from and to the same state) at OnOffDeviceInfo and OpenClosedDeviceInfo with ‘[physicalUpdate = true]’

by adding a new state ‘PhysicalChange’ and some transitions from and to this state from OnOffDeviceInfo and OpenClosedDeviceInfo

by adding an action to the transition from DeviceList to OnOffDeviceInfo and OpenClosedDeviceInfo with ‘\OnPhysicalChange Refresh

UML Trial Exam 1

Authored by Naz Serdar

Information Technology (IT)

University

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40 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of Use-Case is Pay for Tour?

primary

tertiary

secondary

quadrary

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Can a tour be booked without an airplane ticket?

yes, because this is always an option

no, only a Travel Agent can do this

no, since this option is only possible when booking an airplane ticket

yes, because they are separate use-cases

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement about a use case diagram is true?

it depicts the relationships between classes in the system

it displays the interactions between users and the system

it describes the sequence of operations within the system

it demonstrates the system's internal structure

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

There are two different tours that can be booked: a ‘relax tour’ and an ‘adventure tour’.
What is the best method to add the two use-cases Book Relax Tour and Book Adventure Tour, to the diagram?

create a new Use-Case diagram for booking a tour and use a actor-UseCase association

use an inheritance association with Book a Tour

use an included association with Book a Tour

use an extended association with Book a Tour

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which Use-Case element is missing from the diagram?

system boundary

use-cases

multiplicity

pre- and post-conditions

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are valid post-conditions for this use-case description based on the step-by-step plan?

System displays error OR system displays message

System displays message

Credit card details are known

Credit card details are valid OR credit card details are invalid OR credit card details could not be validated

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should be at X?

Parties

Actors

Users

Secondary actors

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UML Trial Exam 1

What type of Use-Case is Pay for Tour?

Can a tour be booked without an airplane ticket?

Which statement about a use case diagram is true?

There are two different tours that can be booked: a ‘relax tour’ and an ‘adventure tour’.What is the best method to add the two use-cases Book Relax Tour and Book Adventure Tour, to the diagram?

Which Use-Case element is missing from the diagram?

What are valid post-conditions for this use-case description based on the step-by-step plan?

What should be at X?

The arrow heads are missing for the include and extend associations.Which direction should the arrow point to for the extend association?

What is the bottom black bar called?

Why are there two final nodes in this diagram?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Information Technology (IT)

There are two different tours that can be booked: a ‘relax tour’ and an ‘adventure tour’.
What is the best method to add the two use-cases Book Relax Tour and Book Adventure Tour, to the diagram?

The arrow heads are missing for the include and extend associations.
Which direction should the arrow point to for the extend association?