Q56 — AWS ANS-C01 Ch.1

Question 56 of 100 | ← Chapter 1

A company uses Amazon Route 53 to host a public hosted zone for example.com. A network engineer recently reduced the TTL on several records to 60 seconds. The network engineer wants to assess whether the change has increased the number of queries to Route 53 beyond the expected levels that the company identified before the change. The network engineer must obtain the number of queries that have been made to the example.com public hosted zone. Which solution will provide this information?

• A. Create a new trail in AWS CloudTrail to include Route 53 data events. Send logs to Amazon CloudWatch Logs. Set up a CloudWatch metric filter to count the number of queries and create graphs.
• B. Use Amazon CloudWatch to access the AWS/Route 53 namespace and to check the DNS Queries metric for the public hosted zone. ✓
• C. Use Amazon CloudWatch to access the AWS/Route 53 Resolver namespace and to check the Inbound Query Volume metric for a specific endpoint.
• D. Configure logging to Amazon CloudWatch for the public hosted zone. Set up a CloudWatch metric filter to count the number of queries and create graphs.

Correct Answer: B. Use Amazon CloudWatch to access the AWS/Route 53 namespace and to check the DNS Queries metric for the public hosted zone.

Explanation

答案B正确。在AWS中，AmazonCloudWatch提供了对AWS服务的监控功能。对于Route53服务，通过访问AWS/Route53命名空间并查看DNSQueries指标，可以直接获取到特定公共托管区域（如example.com）的查询数量。A选项创建新的AWSCloudTrail路径并设置一系列操作相对复杂。C选项中的AWS/Route53Resolver命名空间的InboundQueryVolume指标并非针对公共托管区域的查询数量。D选项配置到AmazonCloudWatch的日志再设置指标过滤器也不如B选项直接和简便。所以选择B选项。 查看全部