Cloud computing 2

When would developers use microservices?

• When they want to write cell phone applications that run quickly

• When they work with ephemeral nano technology

• When they need to create large, enterprise-level applications that are subject to changes on a frequent basis

• When they create applications specifically for scientific test equipment

Which of the following responses is an advantage of microservices?

• Any microservice component can change independently from other components

• They don't require a lot of expertise to program

• They're so small that developers can typically write very powerful ones with a few lines of text

• They are easy to manage

The loosely coupled architecture allows a developer to change one element of a microservices architecture design -- a data log, for example -- without affecting other elements.Which of the following responses is a disadvantage of microservices?

• Microservices are very difficult to manage at scale

• Microservices require a lot of monitoring to operate effectively

• Neither A nor B

• Both A and B

A microservices architecture won't be easy. These challenges require dedicated personnel and a high overhead to run smoothly.What is a popular Java framework to develop microservices?

• Spring Boot

• Eclipse MicroProfile

• Both A and B

• None of the above

What are some technologies commonly used to implement microservices?

• Docker

• Kubernetes

• All the above

• None of the above

Which of the following is not a functional requirement for design considerations of cloud native applications:

• Stakeholders

• Engineering Teams

• Financial resources

• End users

How is distributed tracing used in microservices?

• As a mechanism to ensure that failed microservices are resurrected properly

• As a mechanism to transfer log management between a given host on demand

• As a mechanism to observe the behavior of distinct system calls between and within microservices

• As a mechanism to change the behavior of a microservice at runtime

How does a backing service apply to microservices?

• It prevents a microservice from failing

• It acts as a dedicated service that provides essential functionality required by a microservice

• It shuts down a microservice when it can no longer handle the computing load

• It coordinates network activity between microservices

What's the difference between a microservices-oriented architecture (MOA) and a service-oriented architecture (SOA)?

• An SOA uses intermediation technology to facilitate communication between services

• An MOA shares as little data as possible while an SOA shares as much data as possible

• A developer can run a monolithic application with SOA principles

• All the above

What does the term "bounded context" mean in relation to microservices?

• How a microservice uses memory

• The logical domain represented by the data consumed and emitted by a microservice according to the data's purpose, structure and meaning

• The cloud provider's region where the microservice operates

• The common characteristics within a collection of entities in one or many business domains