Which service in AWS provides scalable computing capacity?
- AWS EC2 (Elastic Compute Cloud)
- AWS Lambda
- AWS RDS (Relational Database Service)
- AWS S3 (Simple Storage Service)
AWS EC2 (Elastic Compute Cloud) provides scalable computing capacity by allowing users to run virtual servers in the cloud.
For a service requiring detailed and structured contracts, _______ would be a more appropriate choice over _______.
- GraphQL
- REST
- SOAP
- WebSocket
For a service requiring detailed and structured contracts, SOAP (Simple Object Access Protocol) would be a more appropriate choice over REST (Representational State Transfer). SOAP provides a formal contract through WSDL (Web Services Description Language), making it suitable for scenarios where a strict and defined interface is crucial. REST, on the other hand, is more flexible and often preferred for lightweight and loosely-coupled systems.
The _______ feature in Azure provides a serverless compute service.
- Azure App Service
- Azure Batch
- Azure Functions
- Azure Logic Apps
Azure Functions is a serverless compute service that allows you to run event-triggered code without explicitly provisioning or managing infrastructure.
SOAP services use _______ to define the structure of the request and response messages.
- HTML
- JSON
- XML
- YAML
In SOAP services, XML is used to define the structure of both the request and response messages. XML provides a standardized format for data exchange, making it suitable for describing the structure and content of messages in a consistent manner.
In developing a high-performance web service, which approach would best ensure both scalability and reliability?
- Microservices architecture
- Monolithic architecture
- Single-threaded server
- Static web page design
Adopting a microservices architecture allows for better scalability and reliability by breaking down the application into independent, manageable services.
A company is looking to enhance its service discovery mechanism in a distributed environment. Which UDDI feature should be prioritized?
- Categorization and Taxonomy
- Inquiry API
- Publish API
- Security and Authentication
In a distributed environment, prioritizing the Inquiry API feature of UDDI is crucial for enhancing service discovery. The Inquiry API allows applications to search and discover available services based on specified criteria, supporting efficient and effective service discovery in a distributed architecture.
In AWS, what is the main advantage of using Amazon RDS over installing a database on an EC2 instance?
- Automated database management
- Lower storage capacity
- More control over database configurations
- Reduced network bandwidth
Amazon RDS offers automated database management, handling routine database tasks, and providing a managed service for easier maintenance.
For a web service that needs to ensure backward compatibility with older systems, which data format is more appropriate?
- Avro
- JSON
- XML
- YAML
XML is a suitable data format for ensuring backward compatibility with older systems. Its self-descriptive nature and schema support make it easier to maintain compatibility as systems evolve. XML allows for the inclusion of metadata and versioning information, providing a structured approach to handle changes in data structures over time.
What is SQL Injection primarily used for in cyber attacks?
- Denial of service attacks
- Exploiting social media accounts
- Phishing email attacks
- Unauthorized access to a database
SQL Injection is primarily used for gaining unauthorized access to a database by injecting malicious SQL queries.
What is a common challenge when implementing WS-Security in heterogeneous systems?
- Differences in encryption algorithms
- Incompatibility with SOAP versions
- Lack of standardized tokens
- Limited support for signatures
Implementing WS-Security in heterogeneous systems can be challenging due to differences in encryption algorithms. Heterogeneous environments may have varied cryptographic requirements, leading to compatibility issues. Standardizing tokens, supporting various signature mechanisms, and ensuring compatibility with different SOAP versions are crucial considerations to address these challenges effectively.