SOA-C02 Practice Test

A SysOps administrator notices a scale-up event for an Amazon EC2 Auto Scaling group
Amazon CloudWatch shows a spike in the RequestCount metric for the associated
Application Load Balancer The administrator would like to know the IP addresses for the
source of the requests
Where can the administrator find this information?

A.

Auto Scaling logs

B.

AWS CloudTrail logs

C.

EC2 instance logs

D.

Elastic Load Balancer access logs

A new application runs on Amazon EC2 instances and accesses data in an Amazon RDS
database instance. When fully deployed in production, the application fails. The database
can be queried from a console on a bastion host. When looking at the web server logs, the
following error is repeated multiple times:
"** Error Establishing a Database Connection
Which of the following may be causes of the connectivity problems? {Select TWO.)

A.

The security group for the database does not have the appropriate egress rule from the database to the web server.

B.

The certificate used by the web server is not trusted by the RDS instance.

C.

The security group for the database does not have the appropriate ingress rule from the
web server to the database.

D.

The port used by the application developer does not match the port specified in the RDS configuration.

E.

The database is still being created and is not available for connectivity.

A company has multiple Amazon EC2 instances that run a resource-intensive application in
a development environment. A SysOps administrator is implementing a solution to stop
these EC2 instances when they are not in use.
Which solution will meet this requirement?

A.

Assess AWS CloudTrail logs to verify that there is no EC2 API activity. Invoke an AWS Lambda function to stop the EC2 instances.

B.

Create an Amazon CloudWatch alarm to stop the EC2 instances when the average CPU utilization is lower than 5% for a 30-minute period.

C.

Create an Amazon CloudWatch metric to stop the EC2 instances when the
VolumeReadBytes metric is lower than 500 for a 30-minute period.

D.

Use AWS Config to invoke an AWS Lambda function to stop the EC2 instances based on resource configuration changes.

A company has a stateless application that runs on four Amazon EC2 instances. The application requires tour instances at all times to support all traffic. A SysOps administrator must design a highly available, fault-tolerant architecture that continually supports all traffic if one Availability Zone becomes unavailable.
Which configuration meets these requirements?

A.

Deploy two Auto Scaling groups in two Availability Zones with a minimum capacity of two instances in each group.

B.

Deploy an Auto Scaling group across two Availability Zones with a minimum capacity of four instances.

C.

Deploy an Auto Scaling group across three Availability Zones with a minimum capacity

D.

Deploy an Auto Scaling group across three Availability Zones with a minimum capacity of six instances.

An errant process is known to use an entire processor and run at 100% A SysOps
administrator wants to automate restarting the instance once the problem occurs for more than 2 minutes How can this be accomplished?

A.

Create an Amazon CloudWatch alarm for the Amazon EC2 instance with basic monitoring Enable an action to restart the instance

B.

Create a CloudWatch alarm for the EC2 instance with detailed monitoring Enable an action to restart the instance

C.

Create an AWS Lambda function to restart the EC2 instance triggered on a scheduled basis every 2 minutes

D.

Create a Lambda function to restart the EC2 instance, triggered by EC2 health checks