Oracle Cloud Infrastructure 2024 Networking Professional Quiz 04 15Nov24 - Practice Quiz

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Question 1 of 30

A company is transitioning its web services to Oracle Cloud Infrastructure and needs to update its DNS settings to reflect the new IP addresses of its servers. They plan to use a CNAME record for their www subdomain to point to the main domain. However, they are concerned about potential downtime during this transition. Which of the following strategies would best mitigate the risk of downtime while ensuring that the DNS changes are effective?

Set a low TTL value for the CNAME record before making the change, allowing for quicker propagation of the new settings.

Create an A record for the www subdomain that points directly to the new IP address, avoiding the use of CNAME records altogether.

Update the CNAME record to point to the new IP address immediately without adjusting the TTL settings, ensuring immediate resolution.

Remove the existing CNAME record before adding the new one to prevent any conflicts, even if it causes temporary unavailability.

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