Resources Exclusively in Oracle Cloud Infrastructure Availability Domain
Question
Which two resources reside exclusively in a single Oracle Cloud Infrastructure Availability Domain? (Choose two.)
Answers
Explanations
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A. B. C. D. E.DE.
The correct answers are D. Block volume and E. Compute instance.
Explanation:
An Availability Domain (AD) is a standalone, independent data center within a region that is isolated from failures in other Availability Domains. Each AD is made up of one or more data centers, each with power, networking, and connectivity to the other data centers in the same AD.
When resources are created in Oracle Cloud Infrastructure (OCI), they are placed in a specific Availability Domain within the region. The resources within an Availability Domain are connected to each other with low-latency, high-bandwidth connections.
The resources that can be placed exclusively in a single Availability Domain are:
D. Block volume: Block volumes are used as block storage devices for Compute instances. A block volume is created and attached to a specific instance, and can only be used by that instance. A block volume can't be attached to multiple instances or moved between Availability Domains.
E. Compute instance: A Compute instance is a virtual machine that runs a workload. When a Compute instance is created, it is placed in a specific Availability Domain, and it can't be moved between Availability Domains.
The resources that can be spread across multiple Availability Domains are:
A. Identity and Access Management (IAM) Groups: IAM Groups are used to manage access to OCI resources. IAM Groups can span multiple Availability Domains within a region.
B. Object Storage: Object Storage is a durable, scalable, and secure object storage service. Object Storage data is stored redundantly across multiple Availability Domains within a region.
C. Web Application Firewall (WAF) policy: WAF is a service that protects web applications from attacks. WAF policies can be associated with resources in multiple Availability Domains within a region.
Therefore, the correct answers are D. Block volume and E. Compute instance, as they can only reside in a single Availability Domain within a region.
