Information Systems MCQs with Answers
Practice important Information Systems MCQs with answers and explanations.
Chapter: 25
Q441:
A Head of Department (HOD) can head how many projects at a time?
A. One
B. Multiple
C. None
D. Depends on the organization
Correct Answer:
A
Chapter: 25
Q442:
An entity is defined as _______.
A. a distinguishable object
B. only a physical object
C. an abstract concept
D. a temporary state
Correct Answer:
A
Chapter: 25
Q443:
What is an attribute set that shares the same properties called?
A. Entity set
B. Value set
C. Relationship set
D. None of the above
Correct Answer:
A
Chapter: 25
Q444:
In a hotel booking system, which field is common among reservation, session, and logs?
A. User ID
B. Room ID
C. Reservation ID
D. Session ID
Correct Answer:
A
Chapter: 25
Q445:
The age range for employees is defined as between _______.
A. 16 and 60
B. 18 and 60
C. 20 and 65
D. 21 and 60
Correct Answer:
B
Chapter: 25
Q446:
Which type of attribute can have more than one value?
A. Single
B. Composite
C. Null
D. Multi-valued
Correct Answer:
D
Chapter: 25
Q447:
A total participation in a relationship means _______.
A. all entities are related to another entity set
B. some entities are related to another entity set
C. none are related
D. only certain types are related
Correct Answer:
A
Chapter: 25
Q448:
An example of a many-to-many relationship is _______.
A. One supervisor controls one department
B. More than one employee works in one department
C. More than one employee can work on more than one project
D. One employee works for multiple supervisors
Correct Answer:
C
Chapter: 25
Q449:
An attribute that is a blank is known as _______.
A. Single
B. Composite
C. Null
D. Derived
Correct Answer:
C
Chapter: 25
Q450:
An entity-relationship diagram helps in _______.
A. Understanding real-world enterprises
B. Mapping processes
C. Flow of data
D. None of the above
Correct Answer:
A
Chapter: 25
Q451:
A derived attribute is obtained through _______.
A. Multiple values
B. Unique attributes
C. Composite attributes
D. Single values
Correct Answer:
B
Chapter: 26
Q452:
What does a dashed ellipse represent in an Entity Relationship Diagram (ERD)?
A. Primary key attribute
B. Derived attribute
C. Multi-valued attribute
D. Foreign key attribute
Correct Answer:
B
Chapter: 26
Q453:
In an ERD, how are primary key attributes denoted?
A. By dashed lines
B. By underlining them
C. By using ellipses
D. By using circles
Correct Answer:
B
Chapter: 26
Q454:
Which of the following is a benefit of object-oriented analysis and design (OOAD)?
A. Increased redundancy
B. Decreased abstraction
C. Easier maintenance
D. More complex code
Correct Answer:
C
Chapter: 26
Q455:
What is the primary purpose of a class in object-oriented programming?
A. To represent a single object
B. To classify related objects
C. To implement algorithms
D. To create user interfaces
Correct Answer:
B
Chapter: 26
Q456:
The first object-oriented programming language was _______.
A. C++
B. Java
C. SIMULA 67
D. Python
Correct Answer:
C
Chapter: 26
Q457:
Object-oriented programming promotes which of the following concepts?
A. Sequential processing
B. Modular programming
C. Functional programming
D. Linear programming
Correct Answer:
B
Chapter: 26
Q458:
An object in OOAD can be defined as an abstraction of _______.
A. An algorithm
B. A function
C. A real-world concept
D. A module
Correct Answer:
C
Chapter: 26
Q459:
Which of the following correctly describes the concept of encapsulation?
A. Combining data and methods in one location
B. Using multiple classes together
C. Dividing a program into functions
D. Breaking a program into small modules
Correct Answer:
A
Chapter: 26
Q460:
In an object-oriented system, what is a major benefit of using reusable software?
A. It reduces development time and cost
B. It eliminates the need for testing
C. It guarantees no bugs will occur
D. It simplifies the coding process
Correct Answer:
A