You have two line of business operations (LOB1, LOB2) leveraging Oracle Cloud Infrastructure. LOB1 is deployed in VCN1 in the OCI US East region, while LOB2 is deployed in VCN2 in the US West region. You need to peer VCN1 and VCN2 for disaster recovery and data backup purposes. To ensure you can utilize the OCI Virtual Cloud Network remote peering feature, which CIDR ranges should be used?

• A.VCN1 (10.0.0.0/16) and VCN2 (10.0.1.0/24)
• B.VCN1 (10.0.0.0/16) and VCN2 (172.16.0.0/16)
• C.VCN1 (172.16.1.0/24) and VCN2 (172.16.1.0/27)
• D.VCN1 (192.168.0.0/16) and VCN2 (192.168.1.0/27)

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Which statement is true about Oracle Cloud Identifiers (OCID)?

• A.If you delete a user, and them create a new user with the same name, the user will be considered a different user because of different OCIDs.
• B.If you delete a user, and then create a new user with the same name, the new user will be assigned the exact same OCIDs as the system remembers.
• C.mytenancy.oc.ocid is a valid OCID.
• D.Users cancustomize OCIDs for all the resources in their compartments.

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Which two statements are true about an Oracle Cloud Infrastructure Virtual Cloud Network (VCN)? (Choose two.)

• A.A VCN can reside in multiple Oracle Cloud Infrastructure regions and Availability Domains.
• B.A VCN covers a single contiguous IPv4 CIDR block of your choice.
• C.An allowable VCN size range is: /16 to /30.
• D.A VCN creates the dynamic routing gateway by default.

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You have an application deployed in Oracle Cloud Infrastructure running only in the Phoenix region. You were asked to create a disaster recovery (DR) plan that will protect against the loss of critical dat a. The DR site must be at least 500 miles from your primary site and data transfer between the two sites must not traverse the public Internet.
Which is the recommended disaster recovery plan?

• A.Create a new virtual cloud network (VCN) in the Phoenix region and create a subnet in one availability domain (AD) that is not currently being used by your production systems. Establish VCN peering between the production and DR sites.
• B.Create a DR environment in Ashburn. Associate a DRG with the VCN in each region and create a remote peering connection between the two VCNs.
• C.Create a DR environment in Ashburn and provision a FastConnect virtual circuit using DRG between the regions.
• D.Create a DR environment in Ashburn. Associate a dynamic routing gateway (DRG) with the VCN in each region and configure an IPsec VPN connection between the two regions.

Correct Answer: B

Remote VCN peering is the process of connecting two VCNs in different regions (but the same tenancy ). The peering allows the VCNs' resources to communicate using private IP addresses without routing the traffic over the internet or through your on-premises network. Without peering, a given VCN would need an internet gateway and public IP addresses for the instances that need to communicate with another VCN in a different region.
At a high level, the Networking service components required for a remote peering include:
- Two VCNs with non-overlapping CIDRs, in different regions that support remote peering. The VCNs must be in the same tenancy.
- A dynamic routing gateway (DRG) attached to each VCN in the peering relationship. Your VCN already has a DRG if you're using an IPSec VPN or an Oracle Cloud Infrastructure FastConnect private virtual circuit.
A remote peering connection (RPC) on each DRG in the peering relationship.
A connection between those two RPCs.
Supporting route rules to enable traffic to flow over the connection, and only to and from select subnets in the respective VCNs (if desired).
Supporting security rules to control the types of traffic allowed to and from the instances in the subnets that need to communicate with the other VCN.

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What show created before provisioning an Oracle Cloud Infrastructure (OCI) DB System?

• A.Compute Instance
• B.Virtual Cloud Network
• C.Bucket in Object Storage
• D.Compartment

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