Multithreading allows multiple threads to run concurrently, enabling more efficient use of CPU resources. This allows tasks such as calculations or data processing to happen simultaneously, improving performance.
Which of the following is an advantage of Multithreading in OOP?
A Better memory management
B Improved user interface
C Reduced runtime
D Single-threaded execution
Multithreading helps reduce runtime by dividing a program into smaller, parallel tasks. This makes better use of available CPU cores, which leads to faster execution of processes, especially for computationally intensive tasks.
In Multithreading, what does the term “thread synchronization” refer to?
A Coordinating thread execution
B Terminating threads
C Optimizing thread execution
D Creating new threads
Thread synchronization ensures that threads run in a coordinated manner, preventing conflicts when accessing shared resources. It helps avoid data corruption and ensures consistent program behavior when multiple threads interact.
Which of the following is true for Object-Oriented Databases (OODB)?
A Use relational tables
B Rely solely on flat files
C Store data as objects
D Do not support queries
Object‐Oriented Databases (OODB) store data in the form of objects, similar to how data is represented in object‐oriented programming. This allows for complex data relationships and structures to be directly represented in the database.
What is the main benefit of Web Development with OOP?
A Reduced memory usage
B Code reusability
C Increased security
D Faster data retrieval
Web development with OOP promotes code reusability through classes and objects, which can be reused across different projects or pages. This reduces code duplication, making maintenance and updates easier and more efficient.
Which of the following is an example of an Object-Oriented Database?
A MongoDB
B MySQL
C db4o
D PostgreSQL
db4o is an example of an Object‐Oriented Database (OODB), which stores objects directly in the database without the need to convert them into rows and columns, as done in relational databases.
Which feature of OOP helps in modeling real-world entities in web applications?
A Inheritance
B Polymorphism
C Encapsulation
D Abstraction
Abstraction in OOP helps model real‐world entities by exposing only relevant data and functionality while hiding complex details. This makes web applications more manageable and easier to scale or modify over time.
Which of the following is true about Multithreading in OOP?
A Threads are always synchronous
B Each thread runs independently
C Threads do not consume CPU
D Threads cannot share data
In multithreading, each thread operates independently, which allows for simultaneous execution of multiple tasks. Threads can share data, but synchronization is required to prevent race conditions when accessing shared resources.
What does Web Development with OOP provide for maintaining large applications?
A Modular and scalable code
B Static code management
C Dynamic content generation
D Single-page applications
OOP in web development promotes modularity, allowing code to be broken down into smaller, reusable components. This makes it easier to maintain and scale large applications, as each module can be developed and updated independently.
Which of the following is a disadvantage of Object-Oriented Databases (OODB) compared to relational databases?
A Reduced security
B Complex data modeling
C Limited query support
D Lack of scalability
While OODBs provide powerful ways to model complex data structures, they tend to be more complex than relational databases. This complexity can make database design and querying more difficult, particularly for users unfamiliar with object‐oriented concepts.
What is an important consideration when using Multithreading in OOP for shared resources?
A Thread creation order
B Thread termination
C Thread synchronization
D Thread prioritization
Thread synchronization is essential in multithreading to ensure that threads do not interfere with each other when accessing shared resources. Without proper synchronization, race conditions and data inconsistencies can occur, leading to errors.
Which of the following best describes Web Development using OOP principles?
A Direct database manipulation
B Static HTML pages
C Single function architecture
D Dynamic content and reuse
Web development using OOP emphasizes dynamic content generation and the reuse of code through objects and classes. This allows for more flexible and maintainable web applications, where components can be reused across different parts of the site.
Which of the following methods is commonly used for Object Persistence in OODBs?
A Indexing
B File handling
C Object serialization
D SQL queries
Object serialization is the process of converting an object’s state into a format that can be easily stored or transmitted. In Object‐Oriented Databases, serialization allows objects to be stored and retrieved efficiently, maintaining their structure.
Which of the following OOP concepts is most useful for creating reusable classes in a Web Development context?
A Inheritance
B Abstraction
C Polymorphism
D Encapsulation
Inheritance allows developers to create reusable classes by extending base classes. This makes it easier to create common functionality and avoid code duplication, which is particularly useful in large web applications that require modular components.
In Multithreading, what is the main challenge when using shared data?
A Thread termination
B Data corruption
C Data duplication
D Thread initialization
The main challenge in multithreading when using shared data is data corruption. When multiple threads access and modify shared resources without synchronization, it can result in inconsistent or incorrect data. Synchronization ensures safe access.