Oracle
1Z0-997-20 EXAM
Oracle Cloud Infrastructure 2020 Architect
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Version: 6.0
Question: 1
You have deployed a web application targeting a global audience across multiple Oracle Cloud
Infrastructure (OCI) regions.
You decide to use Traffic Management Geo-Location based Steering Policy to serve web requests to
users from the region closets to the user. Within each region you have deployed a public load
balancer with 4 servers in a backend set. During a DR test disable all web servers in one of the
regions however, traffic Management does not automatically direct all users to the other region.
Which two are possible causes?
A. You did not setup a Route Table associated with load Balancer's subnet
B. You did not setup an HTTP Health Check associated with Load Balancer public IP in the disabled
region.
C. Rather than using Geo-Location based Steering Policy, you should use Failover Policy Type to serve
traffic.
D. One of the two working web servers In the other region did not pass Its HTTP health check
E. You did not correctly setup the Load Balancer HTTP health check policy associated with backend
set
Answer: B, E
Explanation:
Managing Traffic Management GEOLOCATION Steering Policies
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.
The Health Checks service allows you to monitor the health of IP addresses and hostnames, as
measured from geographic vantage points of your choosing, using HTTP and ping probes. After
configuring a health check, you can view the monitor's results. The results include the location from
which the host was monitored, the availability of the endpoint, and the date and time the test was
performed.
Also you can Combine Managing Traffic Management GEOLOCATION Steering Policies with Oracle
Health Checks to fail over from one region to another
The Load Balancing service provides health status indicators that use your health check policies to
report on the general health of your load balancers and their components.
if you misconfigure the health check Protocol between the Load balancer and backend set that can
lead to not get an accurate response as example below
If you run a TCP-level health check against an HTTP service, you might not get an accurate response.
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