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Oracle Cloud Infrastructure Architect Associate key terms

OCI Architect Associate · Get comfortable with the vocabulary.

Compartment

A logical container inside a tenancy used to group and isolate related cloud resources so that access policies, quotas, and cost tracking can be applied at a granular level.

Related: Tenancy, IAM Policy, Budget
Tenancy

The root container that represents an entire Oracle Cloud account; it holds all compartments, users, and resources, and its home region determines where global identity resources live.

Related: Compartment, Identity Domain, Home Region
IAM Policy

A human-readable statement granting a group permission to perform a set of verbs on a resource type in a compartment, evaluated to allow or deny access requests.

Related: Dynamic Group, Compartment, Principals
Dynamic Group

A group whose membership is defined by matching rules on instance or resource attributes, letting workloads such as compute instances obtain permissions without stored credentials.

Related: Instance Principal, IAM Policy, Resource Principal
Instance Principal

An identity automatically assumed by a compute instance that belongs to a dynamic group, enabling the software on that instance to call OCI APIs without embedding user credentials.

Related: Dynamic Group, Resource Principal
Federation

Integration between the tenancy and an external identity provider so users authenticate with corporate credentials and receive OCI access through mapped groups and policies.

Related: Identity Domain, IAM Policy
Home Region

The region chosen when a tenancy is created; it hosts the primary identity data and some global services, and it cannot be changed after creation.

Related: Tenancy, Region
Virtual Cloud Network (VCN)

A customizable private network in a region that contains subnets, route tables, gateways, and security rules, forming the foundation for all cloud resource connectivity.

Related: Subnet, Route Table, Internet Gateway
Subnet

A contiguous range of IP addresses within a VCN that is bound to a single availability domain or is regional, and that carries its own route table and security list.

Related: VCN, Security List, Availability Domain
Internet Gateway

A highly available VCN component that enables bidirectional traffic between resources with public IP addresses and the internet, used as a target in route rules.

Related: NAT Gateway, Route Table
NAT Gateway

A VCN gateway that lets instances in private subnets initiate outbound internet connections while blocking unsolicited inbound traffic, without requiring public IP addresses.

Related: Internet Gateway, Service Gateway
Service Gateway

A VCN gateway that provides private access to supported Oracle Cloud services such as Object Storage without traffic traversing the public internet.

Related: NAT Gateway, VCN
Route Table

A set of rules attached to a subnet that maps destination CIDR blocks to a gateway or private endpoint, determining where outbound traffic is sent.

Related: Subnet, Internet Gateway, Dynamic Routing Gateway
Security List

A subnet-level set of stateless ingress and egress rules applied to all VNICs in the subnet; return traffic must be explicitly permitted by a matching rule.

Related: Network Security Group, Subnet
Network Security Group (NSG)

A stateful, VNIC-level virtual firewall that lets you apply rules to selected resources regardless of subnet, simplifying micro-segmentation within a VCN.

Related: Security List, VNIC
Dynamic Routing Gateway (DRG)

A virtual router that connects a VCN to on-premises networks over IPSec VPN or FastConnect, and to other VCNs through remote peering or DRG attachments.

Related: FastConnect, Route Table, VCN
FastConnect

A dedicated private physical connection between an on-premises data center and Oracle Cloud, offering predictable bandwidth and lower latency than internet VPN.

Related: Dynamic Routing Gateway, VCN
Shape

A template that defines a compute instance's CPU, memory, and network resources; options include standard, flexible, dense I/O, GPU, and bare metal families.

Related: Flexible Shape, Instance
Flexible Shape

A shape whose OCPU count and memory can be chosen independently within allowed limits, letting you right-size instances and pay for exactly what you configure.

Related: Shape, OCPU
Instance Configuration

A saved template capturing the shape, image, metadata, and networking settings used to launch identical compute instances, typically as the basis for an instance pool.

Related: Instance Pool, Autoscaling
Instance Pool

A managed group of identically configured compute instances that can be scaled and healed automatically, distributing instances across availability domains or fault domains.

Related: Instance Configuration, Autoscaling
Autoscaling

A policy that automatically adjusts the number of instances in a pool based on metrics such as CPU utilization or a schedule, keeping capacity aligned with demand.

Related: Instance Pool, Instance Configuration
Block Volume

Durable network-attached storage that appears as a disk to an instance; volumes persist independently of the instance and can be detached and reattached.

Related: Boot Volume, Volume Backup
Boot Volume

The block storage that holds an instance's operating system image; it is created at launch and can be preserved or replaced when the instance is terminated.

Related: Block Volume, Custom Image
Object Storage Bucket

A container for objects in Object Storage, with a flat namespace, configurable storage tier, and optional versioning, lifecycle rules, and pre-authenticated requests.

Related: Archive Storage, Lifecycle Policy, Pre-Authenticated Request
Archive Storage

The lowest-cost Object Storage tier for long-term retention of rarely accessed data, with retrieval taking hours rather than being immediately available.

Related: Object Storage Bucket, Lifecycle Policy
File Storage Service

A managed NFS-compatible shared file system that multiple instances can mount concurrently, useful for shared application data and lift-and-shift workloads.

Related: Mount Target, Block Volume
Lifecycle Policy

A rule set on a bucket that automatically moves or deletes objects based on age or object name, commonly used to transition data into cheaper tiers.

Related: Archive Storage, Object Storage Bucket
Autonomous Database

A self-managing Oracle Database service that automates provisioning, patching, tuning, and scaling, offered in serverless and dedicated deployment options.

Related: DB System, Autonomous Data Warehouse
DB System

A managed virtual machine or bare metal deployment hosting Oracle Database, giving you control over the database version, patching schedule, and topology.

Related: Autonomous Database, Data Guard
Data Pump

Oracle's export and import utility used to move schemas or full databases between environments, frequently chosen for migrating into Autonomous Database.

Related: GoldenGate, Autonomous Database
GoldenGate

A replication product that captures and applies ongoing changes between databases, enabling near-zero-downtime migrations and cross-region replication.

Related: Data Pump, Data Guard
Availability Domain

An isolated data center group within a region with independent power and network, used to spread resources so a single failure does not take down the whole workload.

Related: Fault Domain, Region
Fault Domain

A grouping of hardware within an availability domain; placing instances in different fault domains reduces the chance they fail together.

Related: Availability Domain, Instance Pool
Data Guard

Oracle Database technology that maintains a synchronized standby database and can perform role transitions for disaster recovery or planned maintenance.

Related: DB System, GoldenGate
Recovery Point Objective (RPO)

The maximum acceptable amount of data loss measured in time, which drives how frequently backups or replication must occur in a recovery design.

Related: Recovery Time Objective (RTO), Volume Backup
Recovery Time Objective (RTO)

The maximum acceptable time to restore a service after an outage, guiding choices such as standby databases, warm sites, or restore-from-backup strategies.

Related: Recovery Point Objective (RPO), Cross-Region Replication
Monitoring Metric

A time-series measurement emitted by OCI resources, such as CPU utilization or disk throughput, which can drive alarms and autoscaling decisions.

Related: Alarm, Autoscaling
Alarm

A rule that watches a metric against a threshold over a window and triggers a notification or action when the condition is met.

Related: Monitoring Metric, Budget
Budget

A cost-tracking object scoped to a compartment or tag that forecasts spend and can raise alerts when actual or forecast costs exceed defined thresholds.

Related: Compartment, Alarm