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Section 1
VCNs, subnets, and IP addressing
Preview
Preview: Networking and connectivity
Preview includes- 4 of 5 lesson topics
- 1 overview segment
- 3 core concepts
- 2 exam tips
Lesson Topics
- VCN scope and CIDR planning
- Regional and availability-domain subnets
- Public and private subnet behavior
- VNIC addressing and public IPs
Overview
A VCN is an isolated, software-defined network in one OCI region. The exam expects you to reason from address scope, subnet design, routes, and security rather than treat a VCN as a global network.
Core Concepts
- A VCN is regional: one VCN does not span multiple OCI regions.
- A VCN uses one or more IPv4/IPv6 CIDR blocks; connected or peered networks should use nonoverlapping address space.
- Subnets divide a VCN address space. OCI supports regional subnets and availability-domain-specific subnets; regional subnets are generally recommended.
Exam Tips
- Start with scope: realm → region → VCN → subnet → VNIC/IP.
- For peering questions, eliminate overlapping-CIDR designs first.
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Section 2
Virtual machine and bare metal compute selection
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Section 3
Cloud service and deployment models
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Section 4
Identity domains, users, groups, and federation
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Section 5
Block Volume selection and persistence
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Section 6
Tagging, quotas, limits, and governance
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Section 7
Autonomous Database workload selection
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Section 8
Route tables and gateways
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Section 9
Compute shapes, images, and instance lifecycle
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Section 10
OCI regions, availability domains, and fault domains
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Section 11
IAM policies, verbs, resource types, and scope
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Section 12
Object Storage tiers and lifecycle
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Section 13
Metrics, alarms, events, logging, and notifications
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Section 14
Security lists and network security groups
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Section 15
Autoscaling and load distribution
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Section 16
Base Database and Exadata service selection
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Section 17
Tenancy, compartments, and resource identifiers
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Section 18
Compartments, dynamic groups, and instance principals
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Section 19
File Storage and shared access
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Section 20
Pricing models and cost-estimation tools
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Section 21
Load balancers and DNS
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Section 22
Containers, Kubernetes, and serverless selection
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Section 23
High availability and disaster recovery fundamentals
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Section 24
Shared security responsibility
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Section 25
Backups, replication, durability, and recovery
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Section 26
Budgets, cost analysis, and usage reports
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Section 27
VPN, FastConnect, and peering
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Section 28
MySQL HeatWave and NoSQL use cases
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Section 29
Cloud Guard, Security Zones, Vault, and encryption
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Section 30
Support, service limits, and operational responsibility
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Section 31
Database availability and protection fundamentals
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