A company is transitioning from a monolithic system to microservices. They need a database that can ensure strong transactional guarantees. What kind of database system would be suitable?
- NoSQL Database
- NewSQL Database
- Columnar Database
- Time-Series Database
NewSQL databases like Google Spanner are designed to combine the scalability of NoSQL databases with strong transactional guarantees, making them suitable for microservices transitioning from monolithic systems.
In computer vision, what process involves converting an image into an array of pixel values?
- Segmentation
- Feature Extraction
- Pre-processing
- Quantization
Pre-processing in computer vision typically includes steps like resizing, filtering, and transforming an image. It's during this phase that an image is converted into an array of pixel values, making it ready for subsequent analysis and feature extraction.
The _____ model of software evolution is centered around the system being altered continually in order to adapt it to varying environments and requirements.
- Waterfall
- Incremental
- RAD
- Maintenance
The Maintenance model of software evolution is centered around the continual alteration of the software system to adapt it to varying environments and changing requirements. This phase is critical for keeping the software functional and relevant over time.
During ______ maintenance, developers make changes to optimize the performance and improve the maintainability of the system.
- Corrective
- Adaptive
- Preventive
- Perfective
Perfective maintenance involves making changes to enhance system performance, improve maintainability, and optimize the software. It includes activities like code refactoring and efficiency improvements.
What is a sophisticated strategy for scaling Jenkins efficiently in a large-scale environment?
- Auto-Scaling Cloud Agents
- Dynamic Agents Provisioning
- Manual Scaling
- Static Agents Allocation
Dynamic Agents Provisioning is a sophisticated strategy for scaling Jenkins efficiently in a large-scale environment. It allows Jenkins to dynamically provision and de-provision agents based on workload, ensuring optimal resource utilization.
gRPC uses _____ to define services and message types, which helps in generating client and server code in various languages.
- JSON-RPC
- Protocol Buffers
- SOAP
- XML-RPC
gRPC uses "Protocol Buffers" to define services and message types. Protocol Buffers is a language-agnostic data serialization format, and it aids in generating client and server code in multiple programming languages, making gRPC efficient and cross-compatible.
What is the primary purpose of Role-Based Access Control (RBAC) in APIs?
- To design user interfaces
- To improve server performance
- To optimize database queries
- To restrict access based on roles
The primary purpose of Role-Based Access Control (RBAC) in APIs is to restrict access to certain resources and functionality based on the roles or permissions assigned to users. RBAC is used to enhance security by ensuring that only authorized users with specific roles can access particular API endpoints or perform specific actions, reducing the risk of unauthorized access.
How do RESTful APIs handle caching, and how does this compare to SOAP APIs?
- Caching is not relevant for either RESTful or SOAP APIs.
- RESTful APIs don't support caching due to their stateless nature.
- RESTful APIs support caching through HTTP headers, offering more control and efficiency than SOAP.
- RESTful APIs use client-side caching, which is less efficient than server-side caching used in SOAP.
RESTful APIs leverage caching through HTTP headers, which offers fine-grained control over caching strategies and enhances performance. This approach is more efficient and flexible compared to SOAP APIs, which typically rely on server-side caching. Understanding these differences is vital when optimizing API performance.
When building APIs with ASP.NET Core, developers can use _____ to define the routes, controllers, and actions.
- JSON-RPC
- RESTful APIs
- Swagger/OpenAPI
- XML-RPC
When building APIs with ASP.NET Core, developers can use Swagger/OpenAPI to define the routes, controllers, and actions. Swagger is a popular tool for documenting and defining APIs in a machine-readable format, making it easier to create and consume web APIs in ASP.NET Core.
What considerations should be taken into account when selecting an API Gateway for a microservices architecture?
- Security and authentication options
- Performance and scalability features
- API versioning and documentation support
- Logging and monitoring capabilities
When selecting an API Gateway for a microservices architecture, you must consider various factors, including security and authentication options to protect your APIs, performance and scalability features for handling traffic, API versioning to manage changes, and documentation support to make APIs easily discoverable. Additionally, logging and monitoring capabilities are crucial for troubleshooting and maintaining the health of your services.