Free Practice Questions for IBM C1000-172 Exam

The main advantage of using IBM Code Engine over traditional server provisioning isgreater scalability.

IBM Code Engine: It is a fully managed, serverless platform that automatically scales up or down based on the workload demand. Unlike traditional server provisioning, which requires manual configuration and scaling of resources, IBM Code Engine dynamically adjusts the compute capacity, allowing applications to handle variable loads efficiently.

Scalability Advantage: IBM Code Engine's serverless architecture eliminates the need for pre-provisioning servers, thus avoiding over-provisioning or under-provisioning issues. It can automatically scale from zero to thousands of instances based on demand, making it highly efficient for scaling applications.

References from IBM Cloud Professional Architect Materials:

According to IBM documentation on IBM Code Engine, it provides a serverless experience with automatic scaling, where the platform handles all the provisioning, scaling, and management of resources.

The other options are incorrect:

A. Lower latencymay be a benefit, but it's not the main advantage.

B. Better load balancingis part of scalability but not the primary advantage over traditional provisioning.

C. Higher securitycould be a benefit but isn't specific to IBM Code Engine's main advantage over server provisioning.

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To ensure that sensitive monitoring data does not travel across the public internet, a client canconfigure the monitoring instance and monitoring agents to only use private endpoints.

IBM Cloud Monitoring Private Endpoints: IBM Cloud Monitoring with Sysdig allows users to configure their monitoring instance and agents to communicate only over private endpoints. This configuration ensures that monitoring data remains within IBM’s private network, thus avoiding exposure to the public internet.

Private Endpoints for Data Security: Using private endpoints is crucial for clients who require that their sensitive data, such as monitoring metrics, never leave the secure IBM Cloud network, enhancing overall security.

References from IBM Cloud Professional Architect Materials:

IBM Cloud documentation on Configuring Private Endpoints for IBM Cloud Monitoring confirms that monitoring data can be restricted to private endpoints to avoid exposure to the public internet.

Other options are incorrect:

A. Encrypt all monitoring data with a user-controlled key from Key Protect or Hyper Protect Crypto Servicesdoes not prevent data from traveling across the public internet.

C. Ensure that all resources being monitored are in the same region as the IBM Cloud monitoring instanceis a good practice for performance but does not specifically ensure that data doesn’t travel over the public internet.

D. Use only private endpoints to store monitoring data in IBM Cloud Object Storageis related to storage, not monitoring data transmission.

Therefore, the correct answer isB. Configure the monitoring instance and monitoring agents to only use private endpoints.

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The two private registry options available to IBM Cloud OpenShift clusters areIBM Cloud Container Registryandthe internal registry setup at cluster creation time.

IBM Cloud Container Registry: This is a private image registry that integrates with IBM Cloud OpenShift. It allows users to store and manage Docker images in a private repository securely. This option is specifically designed to work seamlessly with Kubernetes and OpenShift clusters in IBM Cloud.

Internal Registry at Cluster Creation Time: IBM Cloud OpenShift also supports an internal image registry that is set up during cluster creation. This internal registry allows for the storage and management of container images directly within the OpenShift cluster, providing a secure and private environment for images that are not meant to be publicly accessible.

References from IBM Cloud Professional Architect Materials:

According to IBM Cloud OpenShift documentation on Configuring Private Registries, these two options are available for IBM Cloud OpenShift clusters.

Other options are incorrect:

A. GitHubandC. Docker Hubare public registries.

E. Red Hat Quayis another private registry solution but is not directly listed as an option specific to IBM Cloud OpenShift clusters.

Therefore, the correct answers areB. IBM Cloud Container RegistryandD. The internal registry setup at cluster creation time.

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Red Hat OpenShift on IBM Cloud provides a common platform to meet the requirements of a modern hybrid cloud. It is a Kubernetes-based container platform that enables developers to build, deploy, and manage applications across on-premises environments, IBM Cloud, and other public clouds. This flexibility is key for modern hybrid cloud environments, where businesses seek consistency, scalability, and security across diverse infrastructure setups.

Why Red Hat OpenShift?It offers a comprehensive solution for managing containers and microservices, automating CI/CD pipelines, and integrating with IBM Cloud Paks, thus facilitating a true hybrid cloud model.

Benefits of OpenShift:Red Hat OpenShift ensures workload portability, consistency in development and operations, and provides enhanced security features, making it the preferred platform for enterprises embracing a hybrid cloud strategy.

Comparison with Other Options:

Cloud Functions (B):Focused on serverless functions rather than providing a full hybrid cloud platform.

Code Engine (C):Focused on running containerized workloads without managing infrastructure but not as comprehensive as OpenShift.

Virtual Server Instance (D):Provides virtual machines but lacks the comprehensive hybrid cloud management features.

References:

Red Hat OpenShift on IBM Cloud

IBM Cloud Architect Exam Study Guide

IBM Cloud Paks

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An IBM Cloud multizone region (MZR) is designed to enhance the availability, reliability, and resilience of cloud services. It consists of three or more separate, geographically dispersed zones within a single region, which are interconnected through high-speed and low-latency networks.

Multiple Zones for High Availability:In a multizone region, each zone represents a separate data center or availability zone with its own independent power, cooling, and networking. The multiple zones are interconnected, allowing for failover capabilities. If one zone experiences a failure, services can continue to operate in another zone within the same MZR, minimizing downtime and ensuring business continuity.

Resilience and Disaster Recovery:MZRs are specifically designed to offer a higher level of fault tolerance compared to single-zone regions. They provide geographic redundancywithin the same region, meaning that workloads can be replicated across different zones, thereby protecting against zone-level failures.

Interconnected Yet Independent:While the zones within an MZR are interconnected for data replication and low-latency communication, they are also physically and logically separated to prevent a single point of failure from affecting multiple zones.

Comparison with Other Options:

Option A is partially correct but does not fully describe an MZR.

Option B is incorrect because a failure in one zone does not affect all other zones.

Option C is incorrect as it does not specify that an MZR consists of multiple zones within the same geographical region.

References:

IBM Cloud Multizone Regions (MZR) Overview

IBM Cloud Architect Exam Study Guide

IBM Cloud Global Data Center Locations

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The two services that enable clients to configure a private network in IBM Cloud running IBM i and Windows 2019 arePower Systems Virtual ServerandDirect Link.

Power Systems Virtual Server: This service allows clients to run IBM i, AIX, and Linux on IBM Power Systems in the cloud, providing the flexibility to configure private networks as part of their infrastructure setup.

Direct Link: IBM Cloud Direct Link offers a private, dedicated connection from the client’s on-premises environment to IBM Cloud, which can be used to configure a secure private network between cloud and on-premises resources.

References from IBM Cloud Professional Architect Materials:

IBM documentation on Power Systems Virtual Server and IBM Cloud Direct Link explains their capabilities in enabling private network configurations.

Other options are incorrect:

B. IBM Watson AI servicesis not related to networking.

C. Internet Gatewayprovides public internet access, not private networking.

D. VMwareis a virtualization platform but does not directly handle private network configuration in the context of IBM Cloud running IBM i and Windows 2019.

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To deploy microservices where container communication can be orchestrated and customized, the best IBM Cloud solution is theIBM Cloud Kubernetes Service.

IBM Cloud Kubernetes Service: This service provides a managed Kubernetes environment to orchestrate and manage containerized applications. It supports microservices architecture by providing tools for managing container communication, scaling, deployment, and load balancing. Kubernetes allows for custom networking policies, service meshes, and other tools necessary for microservices communication and orchestration.

Microservices and Kubernetes: Kubernetes is designed to manage and scale microservices. It can handle the orchestration of complex, interdependent services and provides features such as service discovery, traffic routing, load balancing, and monitoring.

References from IBM Cloud Professional Architect Materials:

IBM documentation on IBM Cloud Kubernetes Service confirms its suitability for managing microservices architecture with container orchestration capabilities.

Other options are incorrect:

B. IBM Cloud Code Engineis a serverless platform, not specifically designed for microservices orchestration.

C. IBM Cloud for VMware Solutionsis used for running VMware workloads in the cloud.

D. IBM Cloud Functionsis used for running serverless functions, not for orchestrating containers.

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IBM Cloud VMware offers a "secure-by-default" architecture, which is particularly beneficial for regulated workloads. This means that security best practices are integrated into the default configuration, providing enhanced security controls, compliance readiness, and data protection measures from the outset.

Why Secure-by-Default is Advantageous:It simplifies compliance for regulated workloads by ensuring that security is baked into the infrastructure, reducing the effort required to meet regulatory requirements.

Comparison with Other Options:

B (Bring your own VMware license):This is a feature, but not the main advantage for regulated workloads.

C (Manage the guest OS):Not specific to the security or regulatory compliance needs.

D (Bring your own AIX license):Irrelevant for VMware workloads.

References:

IBM Cloud VMware Solutions

IBM Cloud Architect Exam Study Guide

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Autoscaling enables automatic scaling of resources in response to demand or failure events, ensuring that a multizone Red Hat OpenShift cluster on IBM Cloud can dynamically spin up worker nodes in another data center if one becomes unavailable. Autoscaling allows for maintaining service availability without human intervention, thus achieving the required resiliency.

How Autoscaling Works:Autoscaling automatically adjusts the number of worker nodes in a cluster based on predefined metrics such as CPU usage, memory usage, or other health checks. In the event of a zone failure, it can scale out to other available zones to maintain service continuity.

Importance of Autoscaling for Resiliency:By automatically provisioning new resources when needed, autoscaling reduces the risk of downtime and ensures consistent application performance.

Comparison with Other Options:

A (Load balancing):Distributes traffic but does not scale resources.

B (Network forwarding):Related to network routing, not scaling resources.

D (Init-node script automation):Involves initial setup, not dynamic scaling.

References:

IBM Cloud Kubernetes Service Autoscaling

IBM Cloud OpenShift Documentation

IBM Cloud Architect Exam Study Guide

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