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小菲喵参与者
谢谢老师和各位大神!
QUESTION 130
A company needs to capture all client connection information from its Application Load Balancer every five minutes. This data will be used to analyze traffic patterns and troubleshoot the application.
How can a Solutions Architect meet this requirement?
A. Enable AWS CloudTrail for the Application Load Balancer.
B. Enable Access Logs on the Application Load Balancer.
C. Install CloudWatch Agent on the Application Load Balancer.
D. Enable CloudWatch metrics on the Application Load Balancer.Answer: A or B ? why not cloudTrail?
QUESTION 162
A client has set up an Auto Scaling group associated with a load balancer. The client has noticed that instances launched by the Auto Scaling group are reported unhealthy as the result of an Elastic Load Balancing (ELB) health check, but these unhealthy instances are not being terminated.
What can a Solutions Architect do to ensure that the instances marked unhealthy will be terminated and replaced?
A. Increase the value for the health check interval set on the ELB load balancer.
B. Change the thresholds set on the Auto Scaling group health check.
C. Change the health check type to ELB for the Auto Scaling group.
D. Change the health check set on the ELB load balancer to use TCP rather than HTTP checks.Answer: B or C? threshold与health check type确定不了。。
QUESTION 168
During performance testing of an application, the Amazon RDS database caused a performance bottleneck.
What steps can be taken to improve the database performance? (Choose two.)
A. Change the RDS database instance to multiple Availability Zones.
B. Scale up to a larger RDS instance type.
C. Redirect read queries to RDS read replicas.
D. Scale out using an Auto Scaling group for RDS.
E. Use RDS in a separate AWS Region.Answer: BC or CD?B和D之间Scale up和Scale out AS group确定不了。。
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anthonyhenry参与者
作为正在学习的学员也抛个砖,等老师指正。
Q130: B ELB日志都包含信息 (例如,收到请求的时间、客户端的 IP 地址、延迟、请求路径和服务器响应)。我理解CloudTrail是记录ELB API调用的信息,不是客户端的访问信息
Q162: 我选C
Q168: BC 我记得RDS的Autoscaling是扩容量
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挨踢小茶管理员
Q130. B
Q162. C,因为ELB监控到实例不健康是通过业务端口,但是ASG可能是监控了EC2状态(EC2是否是up的,2/2健康检查通过的),但不监控业务端口。因此会出现一个说健康另一个说不健康的情况。
Q168. BC。 RDS是原声不能横向扩展的。
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小菲喵参与者
谢谢老师和同学!
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