Microservices Practice Test - Practice Test Geeks

Is it true or false that microservices are only for small businesses?

A) False

B) True

Correct! Wrong!

Explanation:
The answer is false. Despite the "micro" in its name, this design has been favorably received by larger businesses. Amazon and Netflix are only two of the well-known multinational corporations that have pioneered this architectural design.

What is the definition of a microservice?

A) A small program that represents discrete logic and runs on dedicated hardware within a well-defined border.

B) A design that is mostly employed in functional and object-oriented programming.

C) A very little piece of code that never exceeds 10 lines in length.

D) A loosely linked component architecture based design style for enterprise systems.

Correct! Wrong!

Explanation:
The answer is D. A microservices architecture, in its most basic form, is made up of tiny, loosely linked components that work together to construct a larger application.

What other well-known concept is the most closely connected to microservices?

A) SEO

B) PaaS

C) API

D) AWS

Correct! Wrong!

Explanation:
The answer is C. API-based and microservices architectures have gained popularity among IT professionals in recent years. While the two sorts of technology are related, it's crucial to understand the distinction. Microservices architecture separates functionality into small web services. APIs, on the other hand, are application programming interfaces. To communicate with other microservices, APIs are frequently used.
Because they're essentially an outgrowth of SOA, microservices were once more generally connected with it. The prevalence of APIs has pushed them to the forefront for microservices architects as the approaches and technologies have grown.

Which of the following responses is a microservices advantage?

A) To program them, you don't need a lot of knowledge.

B) Any component of a microservice can change without affecting the others.

C) They're simple to work with.

D) Because they're so small, programmers can usually create quite powerful ones with just a few lines of code.

Correct! Wrong!

Explanation:
The answer is B. A developer can update one part of a microservices architectural design, such as a data log, without affecting other elements due to the loosely linked architecture.

When is a microservices architecture advantageous for a business?

A) If a low coupling application would benefit from it.

B) If scalability is required by a cloud architecture.

C) A and B.

D) None of the above.

Correct! Wrong!

Explanation:
The answer is A. Microservices architectures are made up of loosely connected yet independent services that may be launched and scaled separately. IT teams can scale certain components to improve resource utilization in this type of application architecture. Furthermore, because these services are not coupled, the IT team can test them separately.

When are microservices likely to be used by developers?

A) They use ephemeral nanotechnology when they work with it.

B) When they wish to create fast-running mobile applications

C) When they make apps for scientific test equipment

D) When they have to build massive, enterprise-level apps that are vulnerable to frequent modifications

Explanation:
When used correctly, microservices enable businesses to scale quickly and effectively.

Show hint

Correct! Wrong!

Explanation:
The answer is D. As contributing expert Tom Nolle pointed out in his piece on the strongest use cases for microservices in the cloud, these functions become the targets for microservices creation. However, it's important to expect that some will have to be generalized to maximize reuse and some may map to a series of microservices rather than a single one, based on technical goals, like stateless behavior and scalability.

What are some of the main disadvantages of employing microservices?

A) It is necessary to do complex testing.

B) During periods of high usage, latency issues may arise.

C) There's a risk of having too much granularity.

D) All of the above.

Correct! Wrong!

Explanation:
The answer is D. Designing communication channels between services in a microservices architecture necessitates extra effort. Microservices are intended to alleviate the problems associated with monoliths; yet, failure is unavoidable if IT teams are unaware of the intricacies of this architectural approach prior to deployment.

Microservices have which of the following disadvantages?

A) To function properly, microservices require a lot of monitoring.

B) At scale, managing microservices is extremely difficult.

C) Both A and B

D) Neither A nor B

Correct! Wrong!

Explanation:
The answer is C. A microservices architecture won't be easy. These challenges require dedicated personnel and a high overhead to run smoothly.

What is a well-known Java framework for creating microservices?

A) Eclipse MicroProfile

B) Spring Boot

C) Neither A nor B

D) Both A and B

Correct! Wrong!

Explanation:
The answer is D. Spring Boot and Eclipse MicroProfile are just two of the many Java frameworks available for developing microservices, but they're not the only options.

What are some of the most common technologies for implementing microservices?

A) Kubernetes

B) Docker

C) Both A and B

D) None of the above

Correct! Wrong!

Explanation:
The answer is C. Containers, service mesh, and API gateways are just a few of the most typical microservices components. In a microservices architecture, all of these technologies are common.

When it comes to microservices, how does a backing service fit in?

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

B) It prevents the failure of a microservice.

C) It synchronizes network activity among microservices.

D) When a microservice can't handle the compute demand anymore, it's shut down.

Correct! Wrong!

Explanation:
The answer is A. The backup service acts as a fail-safe solution for maintaining the functional parts of a microservices component, allowing the developer to keep working on a resilient application

In microservices, how is distributed tracing used?

A) As a method of transferring log management from one server to another on demand.

B) As a way to ensure that failed microservices are appropriately resurrected

C) As a mechanism to change the behavior of a microservice at runtime

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

Correct! Wrong!

Explanation:
The answer is D. Developers can use distributed tracing technologies to map and isolate data across system routes, tracing requests and identifying potential bottlenecks.

What does it mean to have a "bounded context" when it comes to microservices?

A) According to the data's purpose, structure, and meaning, the logical domain represented by the data ingested and emitted by a microservice.

B) Memory usage by a microservice

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

D) The microservice's operating area on the cloud provider.

Correct! Wrong!

Explanation:
The answer is A. Bounded contexts keep microservice components from going beyond their limits. While domains are connected, a microservices component should only function within its domain and then exchange the data after it is finished.

What makes a microservices-oriented architecture (MOA) different from a service-oriented architecture (SOA)?

A) With SOA principles, a developer can run a monolithic application.

B) Intermediation technology is used in a SOA to facilitate communication between services.

C) An MOA shares as little data as possible while an SOA shares as much data as possible

D) All the above

Correct! Wrong!

Explanation:
The answer is D. The critical difference between MOA and SOA is the implementation. While both use segmented design concepts, the way developers interconnect components, self-sufficiency, technology, and data transfer differs significantly.

In which of the following circumstances would a microservices architecture not be appropriate?

A) In a government setting where operational complexity is high,

B) When a higher level of fault tolerance is required

C) If it's necessary to use different technological stacks,

D) None of the above

Correct! Wrong!

Explanation:
The answer is A. Government systems generally require a paper-based procurement process for seeking domain name system entries, requesting certification, and requesting a new IP address, according to writer George Lawton in his post on when microservices may not be the ideal design choice. Microservices may not pay off since they drastically limit the usage of automation.

Which of the following is a potential impact of microservices on a large organization?

A) It will increase the need for single-server setups.

B) It will result in a greater degree of connectivity between application data generated by code and the infrastructure that supports it.

C) It will make cross-team collaboration

D) None of the above

Correct! Wrong!

Explanation:
The answer is C. Microservices enable enterprises to better connect different systems since there is more parity between applications, according to contributor Twain Taylor in his post on the benefits of microservices for enterprise architecture. Apps can communicate more effectively, resulting in more collaboration.

Why is it not ideal to run microservices in an on-premises data center?

A) The microservices will be less secure.

B) The cost of microservices rises as a result.

C) Organizations will miss out on scalability provided by the cloud.

D) Microservices cannot be run in an on-premises data center.

Correct! Wrong!

Explanation:
The answer is C. In this essay about the risks of implementing microservices, Mike Croft, a Java middleware consultant and support engineer for Payara Services Ltd., remarked, "Obviously, you can run microservices on your own data center if you wish." "However, you're not taking advantage of the really huge scalability that cloud systems enable."

Which of these personnel should be in charge of microservices API management?

A) Enterprise architects

B) Developers

C) Business leaders

D) All of the above.

Correct! Wrong!

Explanation:
The answer is D. Taylor noted in his article on API design principles for microservices that the API design strategy is overseen by three people: the business leader, the enterprise architect, and the developer.

Why is network connectivity in a microservices architecture more difficult than in a monolithic design?

A) Communication between single-server systems is routed through microservices.

B) There a plenty of other factors that can contribute to latency.

C) Communication between services is not more difficult in a microservices architecture.

D) The majority of communication protocols are only effective in monolithic structures.

Correct! Wrong!

Explanation:
The answer is A. In monolithic systems, all requests can be readily routed within single-server systems, and resolving latency issues is often easier, according to Taylor's work on managing APIs for microservices. An HTTP request can be routed through numerous services on separate hosts with microservices, resulting in a load of new combinations that can cause latency difficulties.

Why is it important to identify business functions of applications and map similar functions across all of your applications in a microservices strategy?

A) So that each of those functions can be outsourced to a third party

B) It is not actually important to identify business functions of applications.

C) Because microservices should not be considered for these functions

D) Because these functions will serve as the targets for microservices creation

Correct! Wrong!