According to a Gartner Report, Microservices is a new application platform for cloud development. It can be deployed or managed independently and once they are implemented within containers, it results in little interaction with the underlying OS. If you are planning to start a career in Microservices, then you should be skilled enough and it’s the right time to dive in when technology is in its nascent state.
In this blog, we have listed frequently asked questions which are usually asked in a Microservices interview. Let’s have a look:
Here are a few advantages of Microservices architecture that you should know.
In an architectural style, Microservices structures an application as a collection of small autonomous services that are modeled around a business domain. They usually start with a small block and can be arranged together to build a larger application. These cells then will be arranged in a pattern that will structure a stronger section of beehive later.
Each cell is connected but independent in its own way that can be scaled based on the requirements. It means damage to one cell will not affect the productivity of another cell. In this way, damaged cell can be reconstructed quickly and an application would behave the same way.
Here are the best practices that every developer should follow when designing Microservices.
The major components of a Microservice architecture are given as below.
What are the pros?
What are the cons?
They are tough automating components as they are very small. For each component, you have to follow stages – Build, Deploy, and Monitor. When a large number of components are deployed together, they become difficult to be deployed and maintained.
Here, it needs more perceptibility around components. It is tough maintaining configuration sometimes across multiple environments and also to identify bugs in each of the services. So, you have to be extra careful here.
A domain-driven design focused more on core domain logic. It helps to identify complex designs on models of the domain. It can constantly collaborate with domain experts to improve the domain model and resolve all issues related to the domain.
A domain-driven design is necessary for the following reasons.
This is a specific language that can be used by developers or users to define every domain in detail. This is a crystal-clear language that brings all the team members together on the same page and translated so well that a machine can understand quickly.
The measure of the strength of dependencies among components is said to be coupling. For a good design, cohesion is high and coupling is low.
The degree to which how components bind together within a module is called the Cohesion.
Spring becomes more and more complex when new features are added to an application. When you have to start a new Spring project, you should add paths and dependencies. Also, you have to define the configuration for servers, and define everything from scratch.
Spring Boot is the solution to this problem. With this feature, you can always avoid the boilerplate code and tough configurations. Basically, Spring is like an ingredient here that is needed to make a cake and Spring Boot is the complete cake in your hand.
RESTful web services or Representation State Transfer web services can be defined as the architectural style helping computer systems to communicate together over the internet. The REST web services make it easy to understand and implement the Microservices.
Microservices can always be implemented with or without REST APIs. For easy implementation, this is always recommended using REST APIs.
This is a tool for the developers helping to quickly build some of the common patterns within distributed systems.
It helps in checking the current state of an application within the production environment. With the help of actuators, it is always easy monitoring matrices and checking your application.
Here are a few issues that can be resolved with the Spring Cloud.
These are – Technology-facing tests, Exploratory Testing, and Acceptable Testing.
This is the situation where a single event results in the mutation of two or more sources of separate data that cannot be committed automatically.
With this discussion, we come to an end of this blog for “Microservices Interview Questions and Answers”. To know more on Microservices and why it is taken as the lucrative career for 2019 and onwards, join our online certification course at JanBask Training. If there are more questions in your mind, don’t forget to add them in the comment section. We are always happy to hear from you!
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