Answer-first summary for fast verification
Answer: Copy all DNS records from the existing DNS servers to a Route 53 public hosted zone. Update the name servers with the existing registrar to use the Route 53 name servers for the hosted zone. When the changes have propagated, perform a domain name transfer to Route 53.
To migrate DNS hosting to Amazon Route 53 without downtime, the company needs to ensure that DNS resolution continues to work seamlessly during the transition. Option D is the correct approach because it involves copying all DNS records to a Route 53 public hosted zone first, then updating the name servers with the existing registrar to point to Route 53. This ensures that DNS queries are answered by Route 53 while the domain name transfer is in progress. Once the DNS changes have propagated and Route 53 is effectively handling DNS queries, the domain name can be safely transferred to Route 53. This method minimizes the risk of downtime by ensuring that DNS resolution is not interrupted during the migration process. Option A and B suggest using a private hosted zone, which is not suitable for a public website. Option C suggests setting the TTL to 1 second, which is not necessary for a smooth migration and could lead to unnecessary DNS query traffic.
Author: LeetQuiz Editorial Team
Ultimate access to all questions.
No comments yet.
A company needs to migrate its DNS registrar and DNS hosting to Amazon Route 53 without experiencing any downtime. The company's website handles tens of thousands of daily visits, and its current DNS provider is unable to meet the demand. What solution will fulfill these requirements?
A
Transfer the domain name to Route 53. Create a Route 53 private hosted zone, and copy all the existing DNS records. Update the name servers on the domain to use the name servers that are specified in the newly created private hosted zone.
B
Copy all DNS records from the existing DNS servers to a Route 53 private hosted zone. Update the name servers with the existing registrar to use the private hosted zone name servers. Transfer the domain name to Route 53. Ensure that all the changes have propagated.
C
Transfer the domain name to Route 53. Create a Route 53 public hosted zone, and copy all the existing DNS records. Set the TTL value on each record to 1 second. Update the name servers on the domain to use the name servers that are specified in the newly created public hosted zone.
D
Copy all DNS records from the existing DNS servers to a Route 53 public hosted zone. Update the name servers with the existing registrar to use the Route 53 name servers for the hosted zone. When the changes have propagated, perform a domain name transfer to Route 53.