ITP108-A SUMMATIVE TEST

Harry is working on a project that requires different software systems to communicate with each other effectively. What is middleware primarily used for?

• Storing data

• Facilitating communication between systems

• User authentication

• Hardware control

Answer explanation

Middleware is primarily used for facilitating communication between different systems, allowing them to exchange data and interact seamlessly, which is essential for integrated applications.

Hermione is working on a project involving IoT devices and needs to choose a lightweight protocol suitable for them. Which of the following should she consider?

• HTTP

• AMQP

• MQTT

• SOAP

Answer explanation

MQTT (Message Queuing Telemetry Transport) is a lightweight messaging protocol designed for low-bandwidth, high-latency networks, making it ideal for IoT devices. In contrast, HTTP, AMQP, and SOAP are heavier protocols.

What does the Publish/Subscribe model in MQTT enable in a scenario where Lily and James are developing a smart home system that allows various devices to communicate with each other?

• Direct communication between two devices

• Centralized data storage

• Decoupling of data producers and consumers

• Encryption of data

Answer explanation

The Publish/Subscribe model in MQTT allows for decoupling of data producers and consumers, meaning that they can operate independently without needing to know about each other, enhancing scalability and flexibility.

Which feature is NOT part of AMQP?

• Message queuing

• Routing

• Publish/Subscribe only

• Transactions

Answer explanation

AMQP supports various messaging patterns, including message queuing, routing, and transactions. However, 'Publish/Subscribe only' is not a feature of AMQP, as it encompasses more than just this pattern.

Ron is working on a project that requires his team to develop a system that can easily adapt to changing business needs. What is a key benefit of Service-Oriented Architecture (SOA) that would help her team achieve this?

• Single-use services

• Scalability and flexibility

• Direct hardware integration

• Local-only data access

Answer explanation

A key benefit of Service-Oriented Architecture (SOA) is its scalability and flexibility, allowing services to be easily modified, reused, and scaled independently to meet changing business needs.

Which tool is commonly used for designing APIs?

• Swagger

• Adobe Photoshop

• Microsoft Word

• Blender

Answer explanation

Swagger is a widely used tool for designing APIs, allowing developers to create, document, and test APIs effectively. The other options, like Adobe Photoshop and Microsoft Word, are not designed for API development.

What does OAuth primarily facilitate?

• Data encryption

• User authentication and authorization

• API testing

• Message queuing

Answer explanation

OAuth primarily facilitates user authentication and authorization, allowing users to grant third-party applications limited access to their resources without sharing their credentials.

In an event-driven architecture, what are event producers responsible for?

• Storing events

• Emitting events

• Managing consumers

• Blocking invalid events

Answer explanation

In an event-driven architecture, event producers are responsible for emitting events. They generate and send events to notify other components, while storing, managing consumers, and blocking invalid events are not their primary responsibilities.

Which of the following is an example of real-time data integration?

• End-of-day transaction processing

• Reservation system updates

• Annual data archiving

• Nightly system maintenance

Answer explanation

Reservation system updates are an example of real-time data integration as they involve immediate updates to the system as transactions occur, unlike end-of-day processing or nightly maintenance which are not real-time.

What is the primary function of a load balancer?

• Encrypting sensitive data

• Distributing network traffic across servers

• Debugging server errors

• Scaling vertically

Answer explanation

The primary function of a load balancer is distributing network traffic across servers. This ensures no single server is overwhelmed, improving performance and reliability.