Getting started with Microservices with Istio and IBM Cloud Kubernetes Service Cognitive Class Exam Quiz Answers

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Enroll Here: Getting started with Microservices with Istio and IBM Cloud Kubernetes Service Cognitive Class Exam Quiz Answers

Getting started with Microservices with Istio and IBM Cloud Kubernetes Service Cognitive Class Certification Answers

Twelve Factors App Quiz Answers – Cognitive Class

Question 1: The 12-factor app methodology minimizes divergence among development and production, enabling continuous deployment for maximum agility.

• True
• False

Question 2: Disposability refers to which of these concepts?

• An app runs as one or more stateless processes that share nothing and assumes process memory is transient.
• Apps are built in distinct stages (build, release, run).
• Processes start fast and shut down gracefully, which means that processors should start almost instantaneously.
• Developers treat logs as event streams: the outer/hosting environment deals with processing and routing log files.

Question 3: According to the twelve-factor app methodology, where should you store configuration information?

• In the environment
• In the code
• In the server where you deploy the code
• In the properties files

Question 4: When you are trying to build a scalable, distributed, cloud-ready app, you should run that app as one or more stateless processes.

• True
• False

Microservices Quiz Answers – Cognitive Class

Question 1: For a simple change, monolithic apps take a long time to get the updated app redeployed.

• True
• False

Question 2: Select the three benefits of implementing a microservices architecture.

• Different parts of a development team can manage individual parts of a microservice.
• You’ll see less service interruption for fast-paced cloud computing.
• A suite of services can be deployed and upgraded without a rebuild of other functioning services.
• If one component fails, it will all fail.

Question 3: Which principle is exemplified by this statement? “Microservices are an app architectural style that divides an app into components where each component is a full but miniature app that’s focused on producing a single business task.”

• The Single Business Task principle
• The Single Responsibility principle
• The Multiple Component principle
• The Microservices principle

Question 4: Agile development methods helped make microservice design and implementation possible.

• True
• False

Application Architecture Evolution Quiz Answers – Cognitive Class

Question 1: The SOA stack had to string together sequences of services as business processes that were themselves macroservices.

• True
• False

Question 2: A microservice app must have a well-defined interface and well-defined dependencies.

• True
• False

Question 3: What problems do you typically encounter when you develop monolithic apps? Select all that apply.

• No one person can maintain a vertical slice of an app.
• Developer challenges are with DevOps, management views, and controls.
• Developers spend a lot of time in meetings deciding how the layers of code should work together.
• A change in one layer usually broke the layers above it.

Question 4: You can use IBM Cloud Kubernetes Service to repackage monolithic apps into containers.

• True
• False

Microservices Component Architecture Quiz Answers – Cognitive Class

Question 1: The number of business services that you implement for an app depends on what types of clients the app supports and how specialized those clients require their dispatchers to be.

• True
• False

Question 2: In this course, BFF refers to which concept?

• Best friend forever
• Back for front
• Backend for frontend
• Backend first failure

Question 3: You should separate the database access layer into its own service.

• True
• False

Question 4: It’s more efficient and effective to have one team write all or multiple dispatchers while someone else implements the client apps.

• True
• False

Microservice Integration Quiz Answers – Cognitive Class

Question 1: You should not mix and match synchronous and asynchronous communication.

• True
• False

Question 2: By using asynchronous communication, you can make microservices more robust. Which of these actions is not used in asynchronous communication?

• A different requester instance can handle the response.
• The requester, provider, and messages must keep working through the lifetime of the invocation.
• The messaging system holds the action and result.
• The requester doesn’t need to block while the provider runs.

Question 3: Which of these methods help with complete decoupling of microservice intercommunication?

• Service registry or service discovery
• Load balancing
• Circuit breaker patterns
• All of these

Question 4: The public VLAN determines the public IP address that is assigned to a worker node during cluster creation.

• True
• False

Service Mash Quiz Answers – Cognitive Class

Question 1: In monolithic apps, the location of resources are well known, relatively static, and found in configuration files or hard coded.

• True
• False

Question 2: A service registry is used to keep track of the code and health of services.

• True
• False

Question 3: Which of the following common functions are provided by service mesh implementation like Istio? Select all that apply.

• Automated testing
• Service registry
• Service discovery
• Service proxy

Question 4: Client-side discovery uses a load balancer to query the service registry and direct a request to the appropriate service instance.

• True
• False

Istio: An Intelligent Service Mesh for Microservices Quiz Answers – Cognitive Class

Question 1: You add Istio support to services by deploying a special sidecar proxy throughout your environment that intercepts all logs among microservices.

• True
• False

Question 2: Which source projects were the basis for Istio?

• IBM’s Amalgam8 project
• Google’s Service Control
• Lyft’s Envoy proxy
• All of these

Question 3: Istio is an open platform service mesh implementation for connecting, managing, and securing microservices.

• True
• False

Question 4: Select the three benefits of implementing a microservices architecture.

• Different parts of a development team can manage individual parts of a microservice.
• You’ll see less service interruption for fast-paced cloud computing.
• A suite of services can be deployed and upgraded without a rebuild of other functioning services.
• If one component fails, everything fails.

Getting started with Microservices with Istio and IBM Cloud Kubernetes Service Final Exam Answers – Cognitive Class

Question 1: Which component is responsible for collecting telemetry data from the Envoy proxy and other services?

• Citadel
• Kubernetes container
• Mixer
• Pilot

Question 2: What is the core Istio component that is used for traffic management and configuration of all Envoy instances deployed in an Istio service mesh?

• Mixer
• Citadel
• Pilot
• None of these

Question 3: Which of these twelve-factor app methodologies ties into agile software delivery, continuous integration, and continuous deployment concepts, and minimizing incompatibility?

• Admin processes
• Dependencies
• Development and production parity
• Build, release, run

Question 4: Which of these principles when they’re applied to developing microservices can make developers more efficient? Select all that apply.

• Creating well-defined interfaces that are independently deployed
• Managing one large app that does everything
• Operating in small teams with each team owning the entire lifecycle of the service
• Reducing an app into single-function modules

Question 5: You can’t roll back a microservice deployment to a specified version within IBM Cloud Kubernetes Service.

• True
• False

Question 6: 12-factor apps should be scaled up via vertical scaling.

• True
• False

Question 7: The aim of a microservice architecture is to completely link app components to one another so that they can be maintained, scaled, and more.

• True
• False

Question 8: What are the two key tenets of a microservice architecture?

• Services are optimized for multiple functions.
• Communication is done through REST API and message brokers.
• Continuous integration and continuous deployment (CI/CD) are defined per service.
• Business functions are packaged as a single monolith app.

Question 9: Microservices scale and fail interdependently.

• True
• False

Question 10: Which functions enable each service to find and connect with the other services it needs to do its work?

• Sidecar
• Service discovery
• Service registry
• Circuit breaker

Question 11: The Istio service mesh is logically split into which two parts?

• Control plane
• Network plane
• Data plane
• Infrastructure plane

Question 12: The data plane is composed of a set of intelligent proxies deployed as sidecars that mediate and control all security among microservices.

• True
• False

Question 13: The control plane manages and configures proxies to route traffic and to enforce policies at runtime

• True
• False

Question 14: What are the main features of Citadel?

• Service-to-service and end-user authentication using mutual TLS
• Identity management
• Logging management
• Credential management

Question 15: Istio authentication includes key management.

• True
• False

Introduction to Getting started with Microservices with Istio and IBM Cloud Kubernetes Service

Microservices architecture is a software development approach where an application is structured as a collection of loosely coupled services. Each service is independently deployable, scalable, and can be developed and managed by small teams. This architecture promotes flexibility, scalability, and faster development cycles compared to traditional monolithic architectures.

Istio is an open-source service mesh platform that provides a uniform way to connect, manage, and secure microservices. It provides capabilities such as traffic management, observability, policy enforcement, and security. Istio is designed to work seamlessly with Kubernetes and other orchestration platforms.

IBM Cloud Kubernetes Service is a managed Kubernetes offering provided by IBM Cloud. It allows you to deploy, manage, and scale containerized applications using Kubernetes without the complexity of managing the underlying infrastructure. IBM Cloud Kubernetes Service integrates with other IBM Cloud services and provides enterprise-grade security, scalability, and reliability.

Getting Started:

1. Setting up IBM Cloud Kubernetes Service: Sign up for an IBM Cloud account if you haven’t already. Once you’re logged in, navigate to the IBM Cloud Kubernetes Service dashboard and create a new Kubernetes cluster. Follow the instructions provided to configure your cluster.
2. Installing Istio: After setting up your Kubernetes cluster, you can install Istio to enable service mesh capabilities. Istio provides detailed installation guides and documentation on their website. You can choose to install Istio using the provided Helm charts or other installation methods.
3. Deploying Microservices: With Istio and Kubernetes set up, you can start deploying your microservices as Kubernetes pods. Istio provides additional resources such as VirtualServices, DestinationRules, and Gateways to configure traffic routing, load balancing, and other networking features.
4. Observability and Monitoring: Istio integrates with popular observability tools such as Prometheus and Grafana to provide metrics, logs, and traces for your microservices. You can use these tools to monitor the health and performance of your applications.
5. Security: Istio enhances security by providing features such as mutual TLS authentication, access control, and policy enforcement. You can configure Istio to secure communication between microservices and enforce security policies at the service mesh level.

Microservices with Istio and IBM Cloud Kubernetes Service offer a powerful platform for building, deploying, and managing modern applications. By leveraging the capabilities of Istio and Kubernetes, you can create resilient, scalable, and secure microservices architectures that meet the demands of today’s digital businesses.