Oracle Exam 1Z0-1067 Topic 4 Question 24 Discussion

Actual exam question for Oracle's 1Z0-1067 exam

Question #: 24
Topic #: 4

An Insurance company has contracted you to help automate their application business continuity plan. They have the application running in eu-frankfurt-1 as the primary site and uk-london-1 as a disaster recovery site. Normally they have a DNS A record associated with the IP address of the primary endpoint In eu-frankfurt-1. In the event of a disaster, they use OCI DNS Zone Management to update the A record and replace it with the IP address of the endpoint In uk-london-1.

How can you automate the failover process?

ACreate a Health Check that evaluates both regional endpoints. Create a Traffic Management Steering policy with Failover type and associate it with the Health Check.

BCreate a Traffic Management Steering policy and attach it to a backend set with the backend servers from both eu-frankfurt-1 and uk-london-1 regions.

CCreate a Traffic Management Steering policy with Load Balancer type and add both eu-frankfurt-1 and uk-london-1 endpoints. Attach the Traffic Management Steering policy to the A record.

DProvision a Load Balancer in Frankfurt and associate it with the A record in DNS. Create a backend set with backend servers from both eu-frankfurt-1 and uk-london-1 regions.

Show Suggested Answer

Suggested Answer: A

Traffic Management Steering Policies:

Policy Types

FAILOVER

Failover policies allow you to prioritize the order in which you want answers served in a policy (for example, Primary and Secondary). Oracle Cloud Infrastructure Health Checks are leveraged to determine the health of answers in the policy. If the Primary Answer is determined to be unhealthy, DNS traffic will automatically be steered to the Secondary Answer.

LOAD BALANCER

Load Balancer policies allow distribution of traffic across multiple endpoints. Endpoints can be assigned equal weights to distribute traffic evenly across the endpoints or custom weights may be assigned for ratio load balancing. Oracle Cloud Infrastructure Health Checks are leveraged to determine the health of the endpoint. DNS traffic will be automatically distributed to the other endpoints, if an endpoint is determined to be unhealthy.

GEOLOCATION STEERING

Geolocation steering policies distribute DNS traffic to different endpoints based on the location of the end user. Customers can define geographic regions composed of originating continent, countries or states/provinces (North America) and define a separate endpoint or set of endpoints for each region.

ASN STEERING

ASN steering policies enable you to steer DNS traffic based on Autonomous System Numbers (ASN). DNS queries originating from a specific ASN or set of ASNs can be steered to a specified endpoint.

IP PREFIX STEERING

IP Prefix steering policies enable customers to steer DNS traffic based on the IP Prefix of the originating query.

by Hubert at May 08, 2022, 04:16 AM

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