What describes an IBM Cloud VPN for virtual private cloud (VPC) service security feature?
A security feature of IBM Cloud VPN for virtual private cloud (VPC) service is Perfect Forward Secrecy (PFS).
Perfect Forward Secrecy (PFS): PFS ensures that the compromise of one session key does not compromise the confidentiality of past sessions. It provides additional security for encrypted communications by generating unique keys for each session, making it a critical feature for VPN services.
IBM Cloud VPN for VPC: This service utilizes PFS to secure communication between the cloud environment and external networks, ensuring high levels of data protection and encryption.
Reference from IBM Cloud Professional Architect Materials:
The IBM documentation on IBM Cloud VPN describes PFS as a fundamental security feature for protecting data transmitted over the network.
Other options are incorrect:
A . Passive Peer Detection is not a security feature.
B . RSA key exchange is a cryptographic algorithm but does not describe a VPN-specific security feature.
D . Post-shared key is not a relevant term.
An architect is tasked with setting up IBM Cloud Object Storage for data with unpredictable usage patterns. Which storage class should the architect select for this use case?
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.
What is the first thing to do when troubleshooting an IBM Cloud access issue?
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 the user 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.
IBM Cloud Identity and Access Management (IAM) Documentation
IBM Cloud Architect Exam Study Guide
An architect is tasked with setting up IBM Cloud Object Storage for data with unpredictable usage patterns. Which storage class should the architect select for this use case?
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.
Which feature of IBM Cloud Direct Link offers private network connectivity to IBM Cloud services in multiple regions?
The Global Routing option of IBM Cloud Direct Link offers private network connectivity to IBM Cloud services across multiple regions.
IBM Cloud Direct Link: This service provides dedicated private network connectivity from your on-premises environment to the IBM Cloud. The Global Routing option allows data to be transmitted securely across multiple IBM Cloud regions, ensuring low latency and high-speed connectivity for global deployments.
Global Connectivity: With the Global Routing option enabled, organizations can connect to IBM Cloud services in multiple regions without needing separate connections for each region, simplifying network management and improving performance.
Other options are incorrect:
A . Public Routing option does not provide private network connectivity.
C . Semi Private Routing option is not a recognized option.
D . Private Routing option offers connectivity within a single region rather than multiple regions.
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