What is a primary application of a database system?
A) Graphic design
B) Efficient data management
C) Mobile app development
D) Video editing
Answer : B) Efficient data management
In which of the following scenarios would a database system be most beneficial?
A) Creating simple text documents
B) Storing and managing large amounts of customer information for an online store
C) Playing video games
D) Drawing digital art
Answer : B)Storing and managing large amounts of customer information for an online store
What role does a database system play in business applications?
A) Creating marketing materials
B) Efficiently storing and retrieving business data
C) Managing social media accounts
D) Designing company logos
Answer : B) Efficiently storing and retrieving business data
What is the primary purpose of a database system?
A) To create graphical user interfaces
B) To manage and organize data efficiently
C) To develop mobile applications
D) To perform complex mathematical calculations
Answer : B) To manage and organize data efficiently
What is the primary purpose of the Presentation Layer in a three-tier DBMS architecture?
A) Handling database storage
B) Managing business logic
C) User interface and interaction
D) Processing SQL queries
Answer : C)User interface and interaction
Why is the three-tier architecture preferred in many database systems?
A) It simplifies user interfaces
B) It enhances business logic
C) It improves scalability and maintenance
D) It reduces the need for query optimization
Answer : C) It improves scalability and maintenance
In the context of a database system, which component is responsible for optimizing SQL queries for better performance?
A) Database Engine
B) Transaction Manager
C) Storage Management
D) Query Processor
Answer : D) Query Processor
What is the primary role of the Storage Management component in a database system?
A) Processing SQL queries
B) Ensuring data consistency and integrity
C) Organizing and managing storage structures like tables and indexes
D) Handling user authentication
Answer : C) Organizing and managing storage structures like tables and indexes
Which component of a database system is responsible for handling core functionality such as CRUD operations (Create, Read, Update, Delete)?
A) Query Processor
B) Storage Management
C) Database Engine
D)Transaction Manager
Answer : C) Database Engine
Which layer ensures that data consistency and integrity are maintained in a three-tier DBMS architecture?
A) Presentation Layer
B) Application Layer
C) Business Layer
D) Database Layer
Answer : D) Database Layer
In the three-tier architecture, what functions does the Application Layer primarily handle?
A) Database storage and retrieval
B) Business logic and application processing
C) User authentication
D) Query optimization
Answer : B) Business logic and application processing
Why is data organization a crucial aspect of a database system?
A) To make the system look visually appealing
B) To impress users with advanced graphics
C) To ensure efficient storage and retrieval of information
D) To speed up internet connectivity
Answer : C) To ensure efficient storage and retrieval of information
What component is responsible for interacting directly with the database management system in the three-tier architecture?
A) Client
B) Application Client
C) User
D) Application Server
Answer : D) Application Server
Data base is shared among different organizations with the same format - Shared
A)TRUE
B) FALSE
Answer: TRUE
No two data items in the database should represent the same real world entity - Non redundancy
A) TRUE
B) FALSE
Answer : TRUE
Data in the database cannot exist permanently - Persistency
A) TRUE
B) FALSE
Answer : FALSE
Data in the database is generally granted access to all the default users - Security
A)TRUE
B) FALSE
Answer : FALSE
If level 1 schema changes then all the other schemas have to be changed accordingly - Independence
A) TRUE
B) FALSE
Answer : FALSE
In file processing, every user group will maintain its own files for handling its data-processing applications.
A) Data redundancy and inconsistency
B) Difficulty in accessing the data
C) Data isolation
D) Atomicity problems
E) Integrity problems
Answer : Data redundancy and inconsistency
File processing environments do not allow needed data to be retrieved in a convenient and efficient manner.
A)Data redundancy and inconsistency
B)Difficulty in accessing the data
C) Data isolation
D) Atomicity problems
E) Integrity problems
Answer : Difficulty in accessing the data
As all the data are scattered in various files, and files may be in different formats, writing new applications programs to retrieve the appropriate data is difficult.
A) Data redundancy and inconsistency
B) Difficulty in accessing the data
C) Data isolation
D) Atomicity problems
E) Integrity problems
Answer : Data isolation
Atomic means the transaction must happen in its entirety or not at all. It is difficult to ensure atomicity in a conventional file processing system.
A) Data redundancy and inconsistency
B)Difficulty in accessing the data
C) Data isolation
D) Atomicity problems
E) Integrity problems
Answer : Atomicity problems
The data values stored in the database must satisfy certain types of inconsistency.
A) Data redundancy and inconsistency
B) Difficulty in accessing the data
C) Data isolation
D) Atomicity problems
E) Integrity problems
Answer : Integrity problems
In a three-tier architecture, the client machine acts as merely a front end and does not contain any direct database calls.
A) True
B) False.
Answer : Tell In Comments
In the three-tier architecture, the intermediate layer between database and client servers is classified as
A) Functional server
B) Transaction server
C) Application server
D) Disk server
Answer : Tell in Comments