IBM C1000-172 IBM Cloud Professional Architect v6 Exam Practice Test

Answer : B

For data with unpredictable usage patterns, the architect should select the Smart Tier storage 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.

Reference 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 . Standard is for frequently accessed data.

C . Vault and D. Cold Vault are for infrequently accessed data, not suitable for unpredictable usage.

Answer : D

The three main resiliency options for IBM Cloud Object Storage are Cross Region, Regional, and Single Data Center.

Resiliency Options in IBM Cloud Object Storage:

Single Data Center: Stores data in one location, ideal for low-latency access and data residency requirements.

Regional (also known as Multizone): Stores data across multiple data centers within the same geographic region, providing higher availability and protection against data center failure.

Cross Region: Stores data across multiple geographic regions, offering the highest level of availability and disaster recovery capability.

Reference from IBM Cloud Professional Architect Materials:

As per IBM's documentation on Cloud Object Storage, these three options represent the primary resiliency models offered by IBM for their object storage service.

Other options are incorrect:

A . Cross Zone, Multizone, and Regional and C. Cross Region, Cross Zone, and Single Data Center do not align with the actual resiliency models.

B . Single Data Center, Multizone, and Regional is partially correct but lacks the 'Cross Region' option.

Answer : B

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

Reference 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, and D. Multizone involve data being stored across multiple locations or regions, which would not meet the requirement of keeping the data locally restricted.

Answer : A

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.

Answer : B

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.

IBM Cloud VPC Virtual Private Endpoints Documentation

IBM Cloud Networking Services

IBM Cloud Architect Exam Study Guide

Answer : A

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

Answer : C

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

IBM Cloud Architect Exam Study Guide

IBM Cloud Disaster Recovery Solutions