1Z0-997-25 Question 109
Single answerYou have deployed an Oracle Database@Azure instance for a mission-critical application and established the necessary Oracle Interconnect for Azure between your Oracle Cloud Infrastructure (OCI) environment and Azure. After provisioning ExpressRoute on Azure and FastConnect on OCI, you want to ensure that database traffic between OCI services and the Azure-hosted Oracle Database remains on the private interconnect for minimal latency and increased security. Which final configuration step must you perform to route the database traffic privately?
- A
Create a custom route table in Azure and direct the Oracle Database@Azure subnet traffic to the ExpressRoute gateway.
- B
Disable the default Azure route table to force all traffic exclusively over the private interconnect.
- C
Use a public load balancer on OCI to tunnel database traffic from Azure over the internet.
- D
Configure an Azure DNS zone that resolves the Oracle Database@Azure hostname only to a public IP address.
Show answer and explanation
Correct answer: A
Explanation
To leverage the Oracle Interconnect for Azure effectively, you need both OCI and Azure networks to use private routing. According to Oracle's Interconnect for Azure documentation, creating a custom route table pointing subnet traffic to the ExpressRoute gateway is a key step in ensuring end-to-end private connectivity. This prevents the traffic from defaulting to public internet or other unwanted paths.
- A. Correct.
Option 1: Correct. You must set up a custom route table on Azure so that traffic from the specific subnet hosting your Oracle Database@Azure instance is routed to the ExpressRoute gateway. This ensures the traffic flows over your private interconnect instead of going through the public internet.
- B. Incorrect.
Option 2: Incorrect. Simply disabling the default route table does not direct traffic to the private interconnect. You must explicitly specify the private interconnect path (ExpressRoute) in the route table for the subnet.
- C. Incorrect.
Option 3: Incorrect. Using a public load balancer on OCI sends traffic over the public internet, defeating the purpose of secure and low-latency communication over the private interconnect.
- D. Incorrect.
Option 4: Incorrect. Resolving the database hostname to a public IP address makes traffic flow over the public internet instead of leveraging the private interconnect.