Oracle Exam 1Z0-1072-20 Topic 2 Question 35 Discussion

Actual exam question for Oracle's 1Z0-1072-20 exam

Question #: 35
Topic #: 2

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?

ACreate 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.

BCreate a DR environment in Ashburn. Associate a DRG with the VCN in each region and create a remote peering connection between the two VCNs.

CCreate a DR environment in Ashburn and provision a FastConnect virtual circuit using DRG between the regions.

DCreate 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.

Show Suggested Answer

Suggested Answer: B

Remote VCN peeringis the process of connecting two VCNs in different regions (but the sametenancy). 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 aninternet gatewayand 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 anIPSec VPNor anOracle Cloud Infrastructure FastConnectprivate virtual circuit.

Aremote peering connection (RPC)on each DRG in the peering relationship.

Aconnectionbetween those two RPCs.

Supportingroute rulesto enable traffic to flow over the connection, and only to and from select subnets in the respective VCNs (if desired).

Supportingsecurity rulesto control the types of traffic allowed to and from the instances in the subnets that need to communicate with the other VCN.

by Theola at May 06, 2022, 10:05 PM

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