IBM IBM Cloud Professional Architect v6 C1000-172 Exam Dumps: Updated Questions & Answers (October 2025)

The first step in troubleshooting an IBM Cloud access issue is to ensure that the user has the appropriate permissions to access the service or service instance through Identity and Access Management (IAM). IBM Cloud uses IAM to manage user access to resources and services, and improper or insufficient permissions are a common cause of access issues.

Checking IAM Permissions:Users must be granted the correct roles and access policies within IAM to interact with specific IBM Cloud resources. This involves verifying that theuser has the necessary level of access (such as Viewer, Editor, or Administrator roles) for the service or resource in question.

Why IAM Access Matters:Without proper IAM access, users will be unable to view, modify, or delete resources, and access issues may manifest as permission errors, inability to see resources, or inability to interact with the service.

Comparison with Other Options:

A (Verify the ACLs):While ACLs are important, IAM access is the primary consideration in IBM Cloud.

B (Operator role):The Operator role may not necessarily grant sufficient access for all use cases.

D (Open a support case):This should be a subsequent step if IAM permissions are correctly configured.

References:

IBM Cloud Identity and Access Management (IAM) Documentation

IBM Cloud Architect Exam Study Guide

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IBM Cloud Transit Gateway provides network connectivity between different IBM Cloud Virtual Private Clouds (VPCs). It allows for secure, scalable, and efficient communication between resources deployed in separate VPCs, whether they are within the same region or across different regions.

How Transit Gateway Works:It acts as a central hub that facilitates the routing of traffic between multiple VPCs without the need to configure individual VPC peering connections. This simplifies network management, improves scalability, and enhances security by maintaining a single point of control.

Benefits of Transit Gateway:This service supports both private and public connectivity options and allows for routing policies that can be customized according to business needs. It also provides seamless integration with other IBM Cloud services and third-party networks.

Comparison of Other Options:

Domain Name System (A):Not used for network connectivity between VPCs.

Direct Link (B):Used for dedicated, high-speed connections from on-premises to IBM Cloud but not between VPCs.

Power Edge Router (D):Not an IBM Cloud service for inter-VPC connectivity.

References:

IBM Cloud Transit Gateway Documentation

IBM Cloud Networking Solutions

IBM Cloud Architect Exam Study Guide

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For data with unpredictable usage patterns, the architect should select theSmart Tierstorage class.

Smart Tier Storage Class: This is designed for workloads with changing or unpredictable access patterns. It automatically moves data between different cost-performance tiers based on access patterns, providing cost-efficiency and optimal performance without requiring manual intervention.

Unpredictable Usage Patterns: Smart Tier is particularly beneficial when the usage patterns of data are not consistent, as it dynamically adjusts the storage tier to ensure the most efficient use of resources.

References from IBM Cloud Professional Architect Materials:

IBM's documentation on IBM Cloud Object Storage Classes describes Smart Tier as the recommended choice for data with unpredictable access patterns.

Other options are incorrect:

A. Standardis for frequently accessed data.

C. VaultandD. Cold Vaultare for infrequently accessed data, not suitable for unpredictable usage.

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Elasticsearch is a powerful search and analytics engine commonly used to store, search, and analyze large volumes of data in real time. IBM Cloud's "Databases for Elasticsearch" service is specifically designed for this purpose, allowing users to ingest, search, and analyze log data or other large datasets to identify root causes of slowness or performance issues.

Why Databases for Elasticsearch?Elasticsearch is ideal for storing and analyzing logs due to its ability to quickly index and query large amounts of data. It provides powerful search capabilities, aggregations, and visualization tools that are well-suited for identifying performance bottlenecks and troubleshooting.

Comparison with Other Options:

A (Databases for etcd):Not used for analytics or identifying performance issues.

B (Databases for Redis):Primarily an in-memory data store, not suitable for complex data analysis.

D (Cloudant):A NoSQL database service optimized for web and mobile applications, but not primarily for analyzing log data.

References:

IBM Cloud Databases for Elasticsearch

IBM Cloud Architect Exam Study Guide

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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.

References:

IBM Cloud CDN Documentation

IBM Cloud Internet Services (CIS) Documentation

IBM Cloud Architect Exam Study Guide

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For storing data for long-term archival purposes with a minimal I/O load and a peak IOPS requirement of 50,Tier 5 storageis 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.

References 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, andD. Tier 1 storageprovide higher performance than necessary for the described archival workload, resulting in potentially unnecessary costs.

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

Layer 2 (Data Link Layer)andLayer 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.

References 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 7encompasses all OSI layers, which is incorrect.

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

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

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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)andNetwork 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.

References:

IBM Cloud Resiliency Services

IBM Cloud Architect Exam Study Guide

IBM Cloud Disaster Recovery Solutions

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An IBM Cloud Virtual Private Endpoint (VPE) provides a connection point from a Virtual Private Cloud (VPC) to other IBM Cloud services. This allows secure, private communication between resources within a VPC and IBM Cloud services without traversing the public internet, enhancing security and performance.

What is a Virtual Private Endpoint?VPE is a mechanism that enables private connections from a VPC to supported IBM Cloud services such as databases, object storage, and others. It eliminates the need for public IP addresses and reduces the exposure to potential attacks over the public internet.

Why This Option Describes VPE:It clearly explains that VPE is for connecting VPC resources to other IBM Cloud services, fitting the purpose of secure, internal cloud communication.

Comparison with Other Options:

A (Classic to microservices), C (VPC to on-premises), D (Classic to on-premises):None accurately describe the function of a Virtual Private Endpoint in IBM Cloud.

References:

IBM Cloud VPC Virtual Private Endpoints Documentation

IBM Cloud Networking Services

IBM Cloud Architect Exam Study Guide

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The best IBM Cloud Object Storage resiliency option for a use case where data must remain in-country and locally restricted isSingle Data Center.

Single Data Center: This option ensures that all data is stored within a single geographic location, which complies with regulations or requirements that mandate data residency within a specific country. By using a single data center, the data remains locally restricted.

Data Residency Requirements: When an application has strict regulatory or compliance requirements that specify data must not leave the country, the Single Data Center option ensures that data does not cross geographic boundaries.

References from IBM Cloud Professional Architect Materials:

IBM documentation on IBM Cloud Object Storage Resiliency Options states that the Single Data Center option is best suited for scenarios where data residency is a concern.

Other options are incorrect:

A. Cross Zone,C. Cross Region, andD. Multizoneinvolve data being stored across multiple locations or regions, which would not meet the requirement of keeping the data locally restricted.

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