CS504 Solved Grand Quiz Spring 2021

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CS504 SOLVED MCQs

Modules with high cohesion and low coupling can be treated and analysed as

• White boxes
• black boxes
• grey boxes
• none of these

While establishing the services for an object, the following fundamental questions should be asked:

• Why does the system need this object anyway?
• What useful questions can it answer?
• What useful action can it perform?
• All of the given options.

—————is a role that each actor plays in the system under consideration.

• An act
• A participant
• A function
• None of the given

Any Engineering approach must be founded on organizational commitment to —————.

• Cost
• Scheduling
• Quality
• Performance

Return values in synchronous massages are:

• Compulsory
• May not used when response is obvious
• Not used at all
• Represented by solid lines

According to Caper Jhones analysis of project activities, coding only has ——- affect part in system development.

• 13-14%
• 36-40%
• 50-60%
• 70-80%

Normally a system is more easy to modify if its modules have

• High coupling and high cohesion
• High coupling and low cohesion
• Low coupling and high cohesion
• Low coupling and Low cohesion

In multi-threaded or multiprocessing applications where different execution threads may pass information to one another by sending —————————to each other.

• Interrupt calls
• Synchronous messages
• Asynchronous messages
• System Calls

Which of the following is not among the four layers of the object-oriented pyramid?

• The subsystem layers
• The class and object layer
• The abstract layer
• The message layers

System models include:

• User business processes
• User activities for conducting the business process
• Processes that need to be automated
• All of the given options

In the architecture trade-off analysis method the architectural style should be described using the

• Data flow view
• Module view
• Process view
• All of the given

—————- is concerned with decomposing the system into interacting sub-systems.

1. System structuring

• Control Modelling
• Molecular Decomposition
• None of the given

A use case represents:

• A class, its attributes and operations
• An operation’s interface and signature
• The role a user plays when interacting with the system
• The system’s functionality for a particular purpose

External entity may be:

• Source of input data only
• Source of input data and destination of results
• Destination of results
• Repository of data

The process of utilizing our knowledge of computer science in effective production of

———————–.

1. Chemical Engineering
2. Electrical Engineering
3. Computer Engineering
4. System Engineering

Coupling is a measure of ————- of a component.

• Independence
• Dependence
• Aggregation
• Composition

—————— has become a standard notation for object-oriented system modelling:

• UML
• C++
• OCL(Object Constraint Language)
• None of the given option

An arrow in data flow diagram represents:

• Direction of flow of data
• Processing of data
• External agent
• Internal Agent

——————- diagrams does not capture control flow information, it just shows the flow of data in a system.

• Sequence
• Data Flow
• Activity
• Class

In ————- the analyst determines the source of requirements and where do these requirements consume:

• Data flow analysis
• Source and sink analysis
• Down parsing
• Up parsing

Data cannot flow from one external entity to other external entity because:

• It will get corrupted
• It is not allowed in DFD
• An external entity has no mechanism to read or write
• Both are outside the context of the system

In the functional design, the structure of the system resolves around:

• Objects
• Properties
• Functions
• All of the given options

————— is one of the techniques to document domain knowledge

• State transition diagram
• Feasibility matrix
• System matrix
• None of the given options

In case of —————– approach , decomposition of a problem revolves around data.

• Object-Oriented
• Action-Oriented
• Event-Oriented
• Process-Oriented

The —————– relationship is a kind of a generalization specialization relationship:

• Bit-Byte
• Uses
• Binary
• Extends

Which statement is not true about system software?

• Change request has direct impact on software
• Passes through a constant process of evolution
• Change requests have direct impact in the form of defects
• None of the given

Strong cohesion implies that:

• All parts of a component have a close logical relationship with each other
• All parts of a component don’t have a close relationship with each other
• Component is dynamic in nature
• Component is static in nature

The intent of Object-Oriented Analysis(OOA) is to define:

• All classes
• Relationships among classes
• Behaviour of classes
• All of the given options

Requirement engineering focuses on —————– aspect of the software development process.

• Both what and how
• What
• How
• Why and how

—————— relationship is concerned with classes, not with class instantiates.

• Association
• Inheritance
• Aggregation
• Composition

Which of the following statements are true in context of the object model deviation through the Coad methodology?

1. A place is also a contains

• Every container needs to be a place
• Same person may play different times in the system.
• A only
• A and b
• A and c
• All of the given

The goal of ———- is to translate the customer’s desire for a set of defined capabilities into a working product.

• Electrical engineering
• Product engineering
• Hardware engineering
• Mechanical engineering

In case of a ——- message, the called routine that handles the message is completed before the caller resumes execution.

• Synchronous
• Asynchronous
• Bidirectional
• A only

1. B only
2. C only
3. All of the given

In multiprocessing applications, different execution threads may pass information to one another by sending ——- to each other.

• Interrupt calls
• Synchronous messages
• Asynchronous messages
• System calls

A car is made up of a body, three or four wheels, a steering mechanism, a breaking mechanism, and a power engine”

The above statement is example of:

• Whole-part relationship
• Inheritance
• Specialization
• Generalization

To help separate an object’s external behaviour from its implementation, the technique used is called ——-

• Generalization
• Association
• Composition
• Abstraction

Sequences of messages can be present in:

• Use case diagram
• Sequence diagram
• Collaboration diagram
• a only
• b only
• c only
• b and c

Which of the following strategies lead to good software design:

• Separation of concerns
• Modularity
• Divide-and-conquer
• All of the given options

Data flow model:

• Captures the flow of data in a system
• Helps in developing an understanding of system’s functionality
• Describes data origination, transformations and consumption in a system
• All of the given options

——- requirements are often called product features.

• Functional
• Non-functional
• Developer
• User

In the functional design, the structure of the system revolves around.

• Objects
• Properties
• Functions
• All of the given option

The first step in any OOA process model is to

• Build an object-relationship model.
• Define collaborations between objects.
• Elicit customer requirements
• Select a representation language

The —— relationship is kind of a generalization specialization relationship.

• Bit-byte
• Uses
• Binary
• Extends

Regarding data flow model, which of the following statement(s) is true:

• It captures the transformation of data between processes/functions of a system
• Processes on a data flow can operate in parallel
• Only those processes are represented which we need to automate
• All of the given option

————— is an extremely powerful technique for dealing with complexity.

• Aggregation
• Abstraction
• Inheritance
• Association

In “point of sale system”. the term “payment” represents

• Actor
• Participant
• Transaction
• Container

The architecture components for product engineering are

• Data, hardware, software, people
• Data, documentation, hardware, software
• Data, hardware, software, procedures
• Documentation, hardware, people, procedures

An object model encompasses the principle(s) of

• Abstraction
• Encapsulation
• Hierarchy or inheritance
• All of the given option

Prototyping is used when there is ———– regarding requirements.

• Uncertainty
• Confirmation
• Conflict
• Consensus

In ——- phase of software development, requirement analyst focuses on possible design of the proposed solution.

• Maintenance
• Development
• Definition
• Vision

At which stage of software development loop, results are delivered?

• Problem definition
• Solution integration
• Technical development
• Status quo

A class will be cohesive if:

• Class does not implement complex interfaces
• Class does not have complex methods
• If most of the methods do not use most of the data members most of the time
• If most of the methods use most of the data members most of the time.

A DFD is normally levelled (adding more levels of abstraction) as

• It is a good idea in design
• It is recommended by many experts
• It is easy to do it
• It is easier to read and understand a number of smaller DFDs than one large DFD

Identify the true statement(s)

• An attribute that may have a number of values should be replaced by a new class and an object connection
• An attribute that varies over time, e.g. price of an item, should be replaced by an additional class with an affective data and value
• Replace “yes/no” type attribute with “status” type attributes for flexibility
• All of given option

———— Is a technique in which we construct a model of an entity based upon its essential characteristics and ignore the inessential details.

• Inheritance
• Polymorphism
• Aggregation
• Abstraction

A structure is a manner of an organization which expresses a —— strong organization within the problem domain.

• Semantically
• Syntactically
• Graphically
• None of the given

An object model of a system captures the —— structure of a system.

• Static
• Dynamic
• Iterative
• Hierarchical

To determine the architectural style or combination of styles that best fits the proposed system, requirements engineering is used to uncover

• Algorithmic complexity
• Characteristics and constraints
• Control and data
• Design patterns

Which statement is not according to the software engineering principles? Software engineering is a(n) _________

• Balancing act
• Disciplined approach
• Unsystematic approach
• Quantifiable approach

In abbot’s textual analysis technique, different part of speech is identified within the text of the specification and these part are modelled using different ______

• Event
• Process
• Operations
• Components

Quantitative methods for assessing the quality of proposed architectural designs are readily available.

• True
• False

In order to determine the role and responsibilities of the identified objects, we need to consider which of the following step(s):

1. Who I am?

• What I know?
• Who I know?
• What I do?
• A only
• A and b
• B ,c and D
• All of the given

In object oriented design _____ layer contains the details that enable each object to communicates with its collaborators.

• Subsystem
• Responsibility
• Message
• Object

In sequence diagram, the boxes denote:

• Objects (or classes)
• Messages, sent from one object to other
• Life-time of objects
• None of the given option

In “ railway tickit reservation system” the roles such as enquiry. Reservation and ticketing and cancellation are to be performed by the user called:

• Passenger
• System analyst
• System developer
• System designer

Class responsibilities are defined by _______

1. Its attributes only
2. Its collaborators
3. Its operations only
4. Both its attributes and operations

Requirement engineering mainly deals with the _____ of the system

• Vision phase
• Definition phase
• Development phase
• Maintenance phase

In UML based object oriented model of a system, a composition relation between two objects is shown by a ______ sign on the whole side of a relation line.

• An unfilled diamond
• A filled diamond
• A half diamond
• A dot

_______ analysis educates the analyst on business domain complexity and shows a way to deal with it.

• Domain
• Use case
• Object collaboration
• None of the given options

In this case of _____ intra component linkages are stronger while inter component linkages are weak.

• High cohesion
• Low coupling
• Low cohesion
• High coupling

An architectural style encompasses which of the following elements?

• Constraints
• Set of components
• Semantic models
• All of the given

In software engineering paradigm, any engineering approach must be founded on organizational commitment to _____

• Cost
• Scheduling
• Quality
• Performance

Identify the true statement:

• Normally object oriented design is more maintainable than functional oriented.
• Software with functional oriented design does not fulfil non functional requirements.
• Object oriented design can not implement “separation of concerns” strategy
• Function oriented design does not lead to an efficient product

A process in data flow diagram (DFD) represents

• Flow of data
• Transformation of data
• Storage of data
• An external agent

A maintainable design is a design , which supports

• Change
• Debugging
• Adding new features
• All of the given

Whole part structure is also called _______

• Generalization
• Aggregation
• Specialization
• Association

_______ are kind of umbrella activities that are used to smoothly and successfully perform the construction activities.

• Design activities
• Management activities
• Testing activities
• Maintenance activities

When you encounter both transform flow in the same DFD the flow is partitioned and the appropriate mapping technique is used on each part of the DFD.

• True
• False

Software architecture must address ————– requirements of a software system.

• Functional
• Non-functional
• User Interface Requirements
• Both functional and non-functional.

To construct a system model the engineer should consider one of the following restraining factors.

• Assumptions and constraints
• Budget and expenses
• Data objects and operations
• Schedule and milestones

A cohesive class is one which emphasizes on ———— unit of functionality.

• Single
• Multiple
• Static
• None

The best way to conduct a requirement validation review is to

• Examine the system model for errors
• have the customer look over the requirements
• Send them to the design team and see if they have any concerns
• Use a checklist of the questions to examine each requirement

Defining the services of an object means:

• What it does?
• What it knows?
• Who knows it?

Which one of the following is the external quality of a software product?

• Correctness
• Concision
• Cohesion
• Low coupling

In Data Flow Diagram, the entity or system, outside the boundary of this system is called:

• Process
• Data flow
• External agent
• Data store

GUI stands for:

• Genaric user Interface
• Graphical user interface
• Genaric user interaction
• Graphical user interaction

Specialization means:

• Calling the same method with the object of child object
• Hiding the data
• Creating new subclasses for an existing class
• None of the given options

In a use case diagram, an ellipse signifies a(n):

• Actor
• Class
• Use case
• System boundary

Software development is a step-by-step process, and in ——— phase of software development Business objective of an organization get cleared

• Maintenance
• Development
• Definition
• Vision

If you try to make software more user-friendly then the ——— may suffer.

• Reliability
• Software
• Efficiency
• Cost

In object-oriented design, the structure of the system revolves around.

• Objects
• Properties
• Methods
• All of the given option

In ——– relationship, a class shares the structure and behaviour defined in another class:

• Aggregation
• Composition
• Inheritance
• Uses

In Object Oriented Design, combining the services offered by an object with the attributes they work on, results in:

• Lower coupling and strong cohesion
• Lower cohesion and strong coupling
• Increased likelihood of reuse
• Decrease the modularity of the system
• A only
• B and c only
• A and c only

A change becomes ———– because of close presence of data and functions.

• Accessible
• Global
• Private
• Localized

Software engineering is a ————– approach.

• Systematic
• Disciplined
• Scheduled
• All of the given options

An external entity that interacts with the system is called a(n):

• Use case
• Actor
• Stakeholder
• Association

More powerful hardware resulted into the development of ————powerful and ———

software.

• Less, complex
• More , complex
• More, simple
• Less, simple

A context diagram is used:

• As a first step in developing a detailed DFD of a system
• In systems analysis of very complex systems
• As an aid to system design
• As an aid to programmers

“ System should maintain transaction log of every system”

The above statement is an example of:

• Functional requirement
• Non-functional requirement
• Pseudo requirement
• None of these

The architectural model provides the software engineer with the view of the system as a whole:

• True
• False

As per Peter Coad’s methodology , which of the following may not be a perfect candidate for being an object?

• Zone
• Recipient
• Garage
• Password

In the case of ————- approach , data is decomposed according to functionality requirements.

• Object-oriented
• Action-oriented
• Event-oriented
• Process-oriented

In UML based Object Oriented Model of a system, the diamond sign is used to depict ———

• relations between two objects/classes.
• Aggregation and Association
• Inheritance and Association
• Composition and Aggregation
• Composition, Aggregation and Association

The system specification describes the:

• Function and behavior of a computer-based system
• Implementation of each allocated system element
• Algorithmic detail and data structures
• Time required for system simulation

In object oriented approach, ———– are the people and organizations that take part in the system under consideration:

• Actors
• Places
• Participants

Software Design discusses ———- aspect of software development.

• What
• How
• Who
• When

———— requirements cause frequent modifications in user interface.

• Functional
• Non-functional
• Unstable
• User

By levelling a DFD ( adding more levels of abstraction) we mean:

• Splitting it into different levels
• Make its structure uniform
• Expanding a process into one with more sub-processes giving more detail
• Summarizing a DFD to specify only these essentials

A “register” in “Point of Sale system” is an example of:

• Actor
• Participant
• Tangible thing
• Transaction

———— is a set of processes and tools to develop software.

• Software engineering
• Information
• Software
• None of the given

The ———– on which program operates is also considered as part of the software.

• Data
• Information
• Program
• None of the given

———- diagram provides a time-based view and collaboration diagrams which provide an organization based view of the system’s dynamics.

• Data flow diagram
• Entity relationship diagram
• Class diagram
• Sequence diagram

Synchronous messages are “call events” and are denoted by ———-

• Full arrow
• Half arrow
• <<create>>
• <<destroy>>

Which of the following are the components of system engineering software?

• Process
• Methods
• Tools
• All of the given

Identifying system features include ———–

• Log important information
• Conduct business
• Analyze business results
• All of the above

————- is yet another technique that is used to reduce customer dissatisfaction at the requirement stage.

• Study of similar systems
• Site visits
• Prototyping
• All of the above

Data store notation in DFD represents:

• Data input
• Data output
• Data input and data output
• None of the above

The process of defining attributes is called ———–

• Who know me?
• What I know?
• Whom I know?
• All of the above

The output of the design process is a description of the:

• Software architecture
• Software Code
• Software
• All of the above

Which of the following are the levels of software requirements?

• Business requirements
• User requirements
• Functional requirements
• All of the above

Given below are some statements associated with data flow diagrams. Identify the correct statement among them.

• Data flow is made used of to model what systems do
• Flows of data can take place from a process to a sink
• Context diagrams shows the major system processes
• All processes have to be labelled or decomposed

In which of the following diagram the actors and attributes are represented with system boundary?

• Data flow diagram
• Entity relationship diagram
• Class diagram
• Use case diagram

_______ is real looking mock_up of what would be eventually delivered and might not do anything useful.

• Study of similar system
• Site visits
• Prototyping
• All of the above

_____ is blueprint for software construction.

• Object oriented design
• Sequence design
• Software design
• All of the above

______ requirements lead to ill-spent time and rework.

• Unacceptable
• Ambiguous
• Dissatisfaction of customer
• None of the above

Which type of diagram is used to depict the dynamic behaviour of a system.

• ERD diagram
• DFD diagram
• Class diagram
• Collaborations diagram

What is the most crucial non-functional requirement of a system to control radiation dosages that are emitted as treatment for cancer?

• Security
• Reliability
• Easy usability
• Accuracy

A better design has an objective achieve

• High cohesion
• Low cohesion
• Low coupling
• High cohesion and low coupling

Which of the following are trhe components of software engineering framework is combine the three remaining components?

• Process
• Method
• Tools
• All of the above

In sequence diagrams the time required by the receiver object to process the message is denoted by an _____

• Activation box
• Message line
• Life line
• All of the above

How many types of OOD modes have _____.

• One
• Two
• Three
• Four

Which notation is used to represent the process of the system in DFD model.

• Process
• External agent
• Data flow
• Data store

Requirement engineering mainly deals with the _______ of the system

• Process
• Maintenance
• Development phase
• Definition phase

Insufficient user involvement leads to _____ products.

• Unacceptable
• Ambiguous
• Dissatisfaction of customer
• None of the above

Collaboration diagrams have basically two types of components: objects and _____

• Messages
• Method
• Classes
• None of the above

In object-oriented analysis how many number of tasks must occurs _____.

• 1
• 2
• 3
• None of the above

State transition diagram is helpful in determining ______.

• Data store
• Process flow
• Business understanding
• None of the above

In sequence diagram events are organized in a _____ time life line.

• Vertical
• Horizontal
• Both A and B
• All of the above

Asynchronous messages are “signals,” denoted by ______.

• Full arrow
• Half arrow
• <<create>>
• <<destroy>>

When we write a program for computer and then we named it as _____ .

• Data
• Information
• Software
• None of the given

Context level diagram present in which of the following document.

• SRS-software requirement specification
• Design document
• Test phase
• All of the above

______ is diagram in which objects are interact with each other and these are arranged in a sequence.

• ERD diagrams
• Inheritance diagrams
• Class diagrams
• Sequence diagrams

Which of the following layers are include in object-oriented design?

• The subsystem layers
• The class and object layer
• All of the above
• The message layers

Which notation is used to represent the boundary of the system in DFD model?

• Process
• External agent
• Data flow
• Data store

Identifying whole-part structures (aggregations) means what are my _____.

• Components
• Structures
• Class
• Object

An object or class may further be classified on the basis of ______ .

• Behaviour driven attributes
• Data driven attributes
• Responsibility driven attributes
  • o   All of the above

DFD notation contains

• Process
• External agent
• Data flow
• All of the above

The doted lines in sequence diagram are called ____ .

• Life line
• Message line
• Entities line
• All of the above

An object may create another object via a _____ message .

• Full arrow
• half arrow
• <<create>>
• <<destroy>>

How many levels of software requirements are _____?

• One
• Two
• Three
• Four

Which of the following diagram has iterative activities?

• Data flow diagram
• Entity relationship diagram
• Class diagram
• Use case diagram

Which of the items listed below is not one of the software engineering layers?

• Tools
• Manufacturing
• Process
• Methods

Coupling is a measure of _____ a module or component.

• Independent
• Dependent
• Closeness
• All of the given

Software maintenance phase involves

• Debugging
• Adding new features
• Making changes
• All of the given

The hardest single part of building a software system is deciding precisely _____ to build.

• When
• What
• Why
• All of the given

Interaction diagrams depict the ____ behaviour of the system.

• Static
• Active
• Dynamic
• None of the given

A _____ can be used to describe the dynamic behaviour of an object-oriented system.

• ERD diagrams
• Inheritance diagrams
• Class diagrams
• Series diagrams

The Use case diagram shows that which ____ interact with each use case.

• Use case
• Actor
• Component
• Relation

Transactions are the _____ that must be remembered through time.

• Events
• Action
• Triggers
• Methods

A necessary supplement to transform or transaction mapping needed to create a complete architectural design is

• Entity relationship diagrams
• The data dictionary

• Processing narratives for each module
• Best cases for each module