What is the purpose of the Composite Entity pattern?
- To create objects with complex behavior.
- To define a default behavior for an object.
- To manage the lifecycle of objects.
- To represent an entity that is composed of multiple objects to model a more complex entity.
The Composite Entity pattern aims to represent an entity that is composed of multiple objects to model a more complex entity, allowing the composition to be managed as a single entity.
What is Transfer Object pattern?
- A behavioral pattern that describes how to distribute the communication between objects.
- A creational pattern that provides a way to create objects without specifying the exact class of object that will be created.
- A structural pattern that defines the ways of organizing and structuring the objects that are being sent from one place to another.
- An architectural pattern that defines a middleware component that is used to transfer data between different systems or software components.
The Transfer Object pattern is a design pattern that is used in the context of remote method invocation (RMI) systems, where an object is transferred from one JVM to another JVM through serialization. The transfer object is an object that carries data between processes.
When should I use Composite design pattern?
- When you need to represent a complex tree-like structure.
- When you want to apply a behavior to multiple objects at once.
- When you want to hide the implementation details of a class.
- When you want to implement a cache for your data.
The Composite design pattern is used to represent a tree-like structure, where each node in the tree can be either a leaf node or a composite node. The leaf nodes represent the individual objects, while the composite nodes represent the composition of objects. The Composite pattern allows you to treat both composite and leaf objects in a uniform manner, making it easier to manage complex structures.
What are the entities of the Intercepting Filter pattern?
- Factory, Product, Concrete Product, Creator
- Filter, Filter Chain, Target, Filter Manager
- Observer, Subject, Client, Concrete Observer
- Singleton, Thread Safe Singleton, Lazy Initialization
The entities of the Intercepting Filter pattern are: Filter, Filter Chain, Target, and Filter Manager. The Filter performs the pre-processing on the request, the Filter Chain holds a list of filters and passes the request to each one, the Target is the resource that handles the request, and the Filter Manager manages the filters and decides which filter to use.
Is Unit Of Work equals Transaction? Or it is more than that?
- It is equal to a Transaction
- It is less than a Transaction
- It is more than a Transaction
- It is not related to a Transaction
Unit of Work is more than a Transaction, as it encompasses multiple database operations into a single unit of work, including operations such as inserting, updating, and deleting records, as well as managing transactions and detecting conflicts. Transactions are used to ensure that either all or none of the operations succeed.
What is the difference between the Iterator and Composite patterns?
- None of the above
- The Iterator and Composite patterns are the same
- The Iterator pattern composes objects into tree structures to represent part-whole hierarchies, while the Composite pattern provides a way to access the elements of a collection object in a sequential manner
- The Iterator pattern provides a way to access the elements of a collection object in a sequential manner, while the Composite pattern composes objects into tree structures to represent part-whole hierarchies
The Iterator pattern provides a way to access the elements of a collection object in a sequential manner, while the Composite pattern composes objects into tree structures to represent part-whole hierarchies
What is the purpose of the Factory Method design pattern?
- To create objects without specifying the exact class of object that will be created.
- To define an interface for creating objects in a superclass, but allow subclasses to alter the type of objects that will be created.
- To encapsulate the creation of objects within a separate class.
- To provide a way to instantiate objects of a specified class.
The Factory Method design pattern provides a way to create objects without specifying the exact class of object that will be created. This allows for greater flexibility and modularity in the design of a system.
By processing data at the source, ________ computing reduces the latency in IoT applications.
- Cloud
- Distributed
- Edge
- Fog
By processing data at the source, "Fog" computing reduces latency in IoT applications. Fog computing extends cloud computing to the edge of the network, closer to where data is generated, reducing the need to transmit all data to a distant cloud server. This helps in real-time data processing and lower latency.
Regulatory compliance in IoT primarily ensures:
- Adherence to legal and industry standards
- Compatibility with legacy systems
- Data security
- Environmental sustainability
Regulatory compliance in IoT is crucial to ensure that IoT devices and systems adhere to legal and industry standards. This encompasses privacy regulations, safety standards, and other legal requirements that IoT devices must meet to operate within a given jurisdiction.
Which standard focuses on the security of connected devices and their networks?
- ISO 9001
- IEEE 802.11
- MQTT
- ISO 27001
ISO 27001 is a widely recognized standard that focuses on information security, including the security of connected devices and their networks. ISO 9001 is related to quality management, IEEE 802.11 is a standard for wireless LANs, and MQTT is a messaging protocol.
Which of the following tools is commonly used for IoT development?
- Arduino
- Microsoft Word
- Photoshop
Arduino is a widely used platform for IoT development due to its open-source nature, ease of use, and extensive community support. Microsoft Word, Photoshop, and WhatsApp are not relevant tools for IoT development.
While edge computing focuses on processing data at the edge, ________ computing focuses on local area networks and gateways.
- Cloud
- Distributed
- Edge
- Fog
While edge computing focuses on processing data at the edge, "Distributed" computing focuses on local area networks and gateways. Distributed computing refers to the use of multiple interconnected computers and devices to process and manage data across a network, often in a decentralized manner, making it suitable for local network processing.