Most Recent IBM C1000-172 Exam Questions & Answers

IBM Cloud Direct Link utilizes Layers 2 and 3 of the OSI model.

Layer 2 (Data Link Layer) and Layer 3 (Network Layer): IBM Cloud Direct Link provides private connectivity from an on-premises data center to the IBM Cloud through dedicated connections. At Layer 2, it provides direct network paths, while at Layer 3, it handles routing between networks.

Direct Link Functionality: Direct Link offers high-performance, secure connectivity options for hybrid cloud solutions, making it an essential service for enterprises that require a secure and efficient connection to the IBM Cloud.

Reference from IBM Cloud Professional Architect Materials:

The IBM Cloud Direct Link documentation specifies that it operates at OSI Layers 2 and 3 to provide dedicated connectivity options.

Other options are incorrect:

B . Layers 1 thru 7 encompasses all OSI layers, which is incorrect.

C . Layers 3 and 4 include the transport layer, which Direct Link does not utilize directly.

D . Layers 1 and 2 omits Layer 3, which is crucial for network routing.

A single collector in IBM Cloud Flow logs can support the following two use cases:

Collect Data for a Single Network Interface in a Virtual Server Instance: IBM Cloud Flow logs can collect network traffic data specific to a single network interface, which allows detailed monitoring and analysis of traffic patterns and security incidents for that specific instance.

Collect Data for All Network Interfaces in a Subnet: A single collector can also be configured to gather data from all network interfaces in a given subnet. This provides a comprehensive view of the network traffic within that subnet, useful for monitoring, troubleshooting, and security analysis.

Reference from IBM Cloud Professional Architect Materials:

IBM documentation on IBM Cloud Flow Logs supports these use cases, showing how collectors can be set up to monitor specific network interfaces or entire subnets.

Other options are incorrect:

B . Collect data for all network interfaces in an IBM Cloud Classic infrastructure and C. Collect data for all network interfaces in an IBM Cloud region are too broad for a single collector.

D . Collect data for all network interfaces in an IBM Cloud account would require multiple collectors.

Therefore, the correct answers are A. Collect data for a single network interface in a virtual server instance and E. Collect data for all network interfaces in a subnet.

For storing data for long-term archival purposes with a minimal I/O load and a peak IOPS requirement of 50, Tier 5 storage is the most appropriate choice.

Tier 5 Storage: This storage tier is designed for workloads with low performance and IOPS requirements, such as long-term data archival or infrequently accessed data. Tier 5 offers the lowest cost option and is ideal for scenarios where data is rarely accessed, and there is a minimal input/output operation per second (IOPS) requirement.

Workload Suitability: Given that the workload described involves minimal I/O load and a peak IOPS requirement of 50, Tier 5 provides an optimal balance between cost and the minimal performance needed for such an archival workload.

Reference from IBM Cloud Professional Architect Materials:

IBM documentation on IBM Cloud Storage Tiers indicates that Tier 5 storage is suitable for long-term data storage and archival, where performance requirements are minimal.

Other options are incorrect:

B . Tier 2 storage, C. Tier 3 storage, and D. Tier 1 storage provide higher performance than necessary for the described archival workload, resulting in potentially unnecessary costs.

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

IBM Cloud Architect Exam Study Guide

IBM Cloud Paks

IBM Cloud offers two content delivery networks (CDNs): CDN and Cloud Internet Services (CIS). These two offerings are underpinned by the networks of Akamai and Cloudflare, respectively.

IBM Cloud CDN: IBM Cloud uses Akamai's global network for its Content Delivery Network (CDN) service. Akamai is one of the largest and most trusted CDN providers globally, known for its expansive network that delivers content with low latency and high availability.

IBM Cloud Internet Services (CIS): This service is built on Cloudflare's global network and offers a suite of services, including a CDN, DDoS protection, web application firewall (WAF), and more. Cloudflare's network spans many data centers worldwide, optimizing traffic delivery and securing applications.

Comparison with Other Options:

Limelight and KeyCDN (A), CDN 77 and CloudFront (C), Cloudflare and Fastly (D): These are other CDN providers but do not represent the networks underpinning IBM Cloud's CDN offerings.

IBM Cloud CDN Documentation

IBM Cloud Internet Services (CIS) Documentation

IBM Cloud Architect Exam Study Guide