In REST, client-server interactions are stateless, each request from the client to the server must contain all the information needed to understand the request, and cannot take advantage of any stored _______ on the server.
- Context
- Information
- Session
- State
In REST, the statelessness principle means that each request should contain all the information needed to understand and process the request, and no information is stored on the server between requests.
Which layer of the OSI model does SSL/TLS primarily operate at?
- Application Layer
- Data Link Layer
- Network Layer
- Transport Layer
SSL/TLS primarily operates at the Transport Layer of the OSI model, providing secure communication between devices.
The concept of _______ in REST involves making the data format of a resource's representation include links to possible actions and next steps.
- Dynamic Binding
- Hypermedia
- Linked Resources
- Resource State Transfer
HATEOAS (Hypermedia As The Engine Of Application State) involves including hypermedia links in the representation of a resource, allowing clients to navigate the application's functionality.
_______ is a critical feature of API Gateways for managing the lifecycle of APIs.
- Compression
- Encryption
- Monitoring
- Versioning
Versioning is a critical feature of API Gateways as it helps in managing the lifecycle of APIs by allowing different versions to coexist and ensuring backward compatibility.
What is the primary purpose of JWT in web services?
- Authentication and Information Exchange
- File storage
- Graphic design in web development
- Wireless communication
JWT (JSON Web Token) is primarily used for authentication and secure information exchange between parties.
In a scenario where an organization is transitioning to cloud-based services, what interoperability factors need to be considered?
- Data formats and APIs compatibility
- Network latency and bandwidth
- Only choosing cloud-native services
- Restricting access to on-premise systems
Transitioning to cloud-based services requires consideration of factors such as data formats and APIs compatibility. Ensuring that data formats align and APIs are interoperable is crucial for seamless communication between on-premise and cloud systems. Ignoring these factors could lead to integration challenges and hinder the organization's ability to fully leverage the benefits of cloud services.
How does JWT (JSON Web Token) enhance security in stateless authentication?
- It carries self-contained claims in a token
- It encrypts the entire HTTP payload
- It includes encrypted session data
- It provides a secure channel for data transfer
JWT enhances security in stateless authentication by carrying self-contained claims in a token, reducing the need for constant server-side storage of session data.
What are some disadvantages of Dependency Injection?
- Some disadvantages of Dependency Injection include decreased maintainability, increased difficulty of use, and decreased functionality.
- Some disadvantages of Dependency Injection include decreased readability, increased difficulty of use, and decreased code reusability.
- Some disadvantages of Dependency Injection include decreased scalability, increased security risks, and decreased compatibility.
- Some disadvantages of Dependency Injection include increased complexity, difficulty testing, and decreased performance.
Some disadvantages of Dependency Injection include increased complexity, difficulty testing, and decreased performance. Dependency Injection can lead to increased complexity in the code, making it more difficult to test and potentially reducing performance.
What is Factory pattern?
- A design pattern used to create objects in a more efficient way
- A design pattern used to manage the dependencies between objects
- A design pattern used to manage the lifecycle of objects
- A design pattern used to manage the relationships between objects
The Factory pattern is a creational design pattern used to create objects in a more efficient and centralized manner. It abstracts the process of object creation and allows the client code to be decoupled from the actual implementation of the objects being created, providing greater flexibility and maintainability in the code.
When should Prototype pattern be used?
- When objects need to be created in a step-by-step manner, allowing for more control over the object creation process
- When the cost of creating a new object is high, and it is more efficient to create a copy of an existing object
- When the number of objects in the system needs to be reduced, making it more efficient
- When the objects in the system need to be loosely coupled, making the system easier to maintain and extend
Prototype pattern should be used when the cost of creating a new object is high, and it is more efficient to create a copy of an existing object. This pattern is useful for creating a large number of similar objects, as creating a copy is faster than creating a new instance from scratch.
Why would I ever use a Chain of Responsibility over a Decorator?
- The Chain of Responsibility pattern is a behavioral pattern while the Decorator pattern is a structural pattern.
- The Chain of Responsibility pattern is suited for a small number of processing steps while the Decorator pattern is suited for a large number of processing steps.
- The Chain of Responsibility pattern is used when the order of processing is important, while the Decorator pattern is used to add or override behavior.
- The Chain of Responsibility pattern passes the request sequentially through a dynamic list of receivers, while the Decorator pattern dynamically adds responsibilities to objects.
The Chain of Responsibility pattern is used when the order of processing is important, while the Decorator pattern is used to add or override behavior.
What is the State pattern?
- A creational design pattern that provides a way to instantiate an object in a superclass, but allow subclasses to alter the type of objects that will be created.
- A design pattern used to ensure a class has only one instance, while providing a global access point to this instance for the entire system.
- A software design pattern that enables an object to be passed around as a value.
- The State pattern is a behavioral design pattern that allows an object to alter its behavior when its internal state changes. It appears as if the object changed its class.
The State pattern is a behavioral design pattern that allows an object to alter its behavior when its internal state changes. It appears as if the object changed its class.