Waths a region ?
A region is a localized geographic area, and an availability domain is one or more data centers located within a region.
Waths are availability domains
Availability domains are isolated from each other, fault tolerant, and very unlikely to fail simultaneously or be impacted by the failure of another availability domain.
Waths fault domain ?
A fault domain is a grouping of hardware and infrastructure within an availability domain.
How much fault domains has a availability domain ?
Each availability domain contains three fault domains.
How does distributing instances across different physical hardware within a single availability domain improve application resilience?
they let you distribute your instances so that the instances are not on the same physical hardware within a single availability domain.
What is a realm in OCI?
A realm is a logical collection of regions. Realms are isolated from each other and do not share any data.
What is a tenancy in OCI?
tenancy is basically secure and isolated partition or account within oci.
What is a compartment in OCI?
A compartment is a collection of related resources (such as instances, virtual cloud networks, block volumes) that can be accessed only by certain groups that have been given permission by an administrator.
What is an identity domain in OCI?
An identity domain is a container for managing users and roles, federating and provisioning of users, secure application integration through Oracle Single Sign-On (SSO) configuration, and OAuth administration.
What is an OCID?
Every Oracle Cloud Infrastructure resource has an Oracle-assigned unique ID called an Oracle Cloud Identifier (OCID). This ID is included as part of the resource’s information in both the Console and API.
What is a security zone in OCI?
A compartment where all resources must comply with Oracle’s security best practices.
What are the different types of OCI compute services?
Bare Metal, Virtual Machines, Dedicated Virtual Hosts, Container Engine, and Functions.
Can data be shared between realms?
No, realms are isolated and do not share any data.
What is the key use case for Bare Metal compute?
Performance-intensive workloads and applications requiring direct hardware access.
What is a dedicated virtual host?
A single-tenant host running multiple virtual machines.
What is autoscaling?
The ability to automatically scale in/out compute instances based on predefined metrics.
What are Functions in OCI?
Small blocks of code that execute on demand and are billed only for execution time.
What is Oracle Kubernetes Engine (OKE)?
A managed Kubernetes service for orchestrating containerized applications.
What are the types of OCI storage?
Block Volume, Local NVMe, File Storage, Object Storage, Archive Storage.
What is block storage best used for?
Databases, Exchange servers, VMware, and boot volumes.
How is block storage protected?
Data is replicated across three fault domains and backed up periodically.
What is local NVMe used for?
High-performance temporary storage (e.g., NoSQL DB, in-memory DB).
What protocol does File Storage support?
NFS v3.
What is object storage ideal for?
Unstructured data like logs, backups, images, and big data.
