IBM C1000-172 Exam Questions

The most predominant aspect of an overall resiliency solution in IBM Cloud is 'Addressing physical events.' This refers to the ability to maintain service continuity and recover quickly from physical disruptions such as natural disasters (earthquakes, floods, fires, etc.). IBM Cloud provides multiple layers of resiliency, including geographic redundancy, data replication, backup, and disaster recovery services to ensure high availability and business continuity in the event of such physical events.

Physical Resiliency: IBM Cloud's strategy includes using multiple regions and availability zones to create a resilient infrastructure that can withstand physical events. By deploying applications across multiple zones and regions, the impact of a physical event is minimized.

Comprehensive Approach: Addressing physical events is part of a broader resiliency framework that also considers other types of failures (network, storage, etc.). Still, dealing with physical events like natural disasters is the most critical aspect of ensuring maximum protection and continuous operation.

Comparison with Other Options:

Storage requirements (A) and Network requirements (B) are important for overall performance but are not the primary aspect of resiliency.

Capture historical events (D) is related to logging and monitoring, not directly linked to resiliency from physical events.

IBM Cloud Resiliency Services

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IBM Cloud Disaster Recovery Solutions

File Storage (Classic) on IBM Cloud allows users to adjust the performance as needed by choosing different tiers or adjusting the input/output operations per second (IOPS). This flexibility makes it suitable for workloads with varying performance requirements, such as databases, analytics, or content management systems, where the storage performance can be adjusted to match the workload demand.

Performance Adjustability: Users can choose between various performance levels or make adjustments to IOPS, allowing them to balance cost and performance based on current needs.

Why File Storage (Classic)? This flexibility makes File Storage (Classic) suitable for dynamic workloads that require changes in performance over time, such as during peak usage periods.

Comparison with Other Options:

Protects against data in transit failures (B) is not a primary feature of File Storage.

Scalable during provisioning (C) is partially correct, but 'adjusting performance' is more precise.

Asynchronous reads and writes (D) are general file system features, not unique to IBM Cloud File Storage.

IBM Cloud File Storage Documentation

IBM Cloud Architect Exam Study Guide

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.

Red Hat OpenShift on IBM Cloud

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IBM Cloud Paks

In IBM Cloud, a monitoring agent properly authenticates with the IBM Cloud Monitoring service by using a service instance authorization. This approach allows secure interaction between the monitoring agent and the monitoring service by using identity and access management (IAM) policies and authorizations associated with a service instance.

Service instance authorizations grant specific permissions to services, enabling them to authenticate and interact with other services or resources securely. For IBM Cloud Monitoring, the agent uses the service instance authorization to send metrics to the monitoring service, ensuring that the communication is authenticated and authorized without relying on hard-coded credentials or API keys tied to individual users.

The service instance authorization method is recommended because it is aligned with best practices for securing services in cloud environments, offering a centralized and controlled way to manage permissions.

IBM Cloud Documentation Reference:

IBM Cloud Monitoring: Setting up and Configuring Agents

Service Authorization for IBM Cloud Services

Bare Metal Servers on IBM Cloud provide the required physical isolation, regulatory benefits, and control over the software stack, making them ideal for moving Windows applications quickly without changing the architecture. Bare Metal Servers offer dedicated hardware resources, full control over the server environment, and the ability to configure and manage the software stack, meeting the company's needs for physical isolation and performance.

Why Bare Metal Servers? They provide the highest level of performance, security, and customization, including control over the operating system and applications, which is essential for regulatory compliance and quality of service.

Physical Isolation: Bare Metal Servers are single-tenant servers, meaning they are not shared with other customers, providing physical isolation required for specific regulatory needs.

Comparison with Other Options:

z16 (B) and Power (C) are specialized platforms for different workloads, not necessarily suited for general-purpose Windows applications.

Virtual Servers (D): Provide virtualization but do not offer the same level of control and physical isolation as Bare Metal Servers.

IBM Cloud Bare Metal Servers

IBM Cloud Architect Exam Study Guide