- (Exam Topic 1)
A gaming application is deployed on four Amazon EC2 instances in a default VPC. The SysOps administrator has noticed consistently high latency in responses as data is transferred among the four instances. There is no way for the administrator to alter the application code.
The MOST effective way to reduce latency is to relaunch the EC2 instances in:

1. A. a dedicated VPC.
2. B. a single subnet inside the VPC.
3. C. a placement group.
4. D. a single Availability Zone.

Correct Answer: C

- (Exam Topic 1)
A company runs an application on Amazon EC2 instances. The EC2 instances are in an Auto Scaling group and run behind an Application Load Balancer (ALB). The application experiences errors when total requests exceed 100 requests per second. A SysOps administrator must collect information about total requests for a 2-week period to determine when requests exceeded this threshold.
What should the SysOps administrator do to collect this data?

1. A. Use the ALB’s RequestCount metri
2. B. Configure a time range of 2 weeks and a period of 1 minute.Examine the chart to determine peak traffic times and volumes.
3. C. Use Amazon CloudWatch metric math to generate a sum of request counts for all the EC2 instances over a 2-week perio
4. D. Sort by a 1-minute interval.
5. E. Create Amazon CloudWatch custom metrics on the EC2 launch configuration templates to create aggregated request metrics across all the EC2 instances.
6. F. Create an Amazon EventBridge (Amazon CloudWatch Events) rul
7. G. Configure an EC2 event matching pattern that creates a metric that is based on EC2 request
8. H. Display the data in a graph.

Correct Answer: A
Using the ALB’s RequestCount metric will allow the SysOps administrator to collect information about total requests for a 2-week period and determine when requests exceeded the threshold of 100 requests per second. Configuring a time range of 2 weeks and a period of 1 minute will ensure that the data can be accurately examined to determine peak traffic times and volumes.

- (Exam Topic 1)
A company uses AWS Cloud Formation templates to deploy cloud infrastructure. An analysis of all the company's templates shows that the company has declared the same components in multiple templates. A SysOps administrator needs to create dedicated templates that have their own parameters and conditions for these common components.
Which solution will meet this requirement?

1. A. Develop a CloudFormaiion change set.
2. B. Develop CloudFormation macros.
3. C. Develop CloudFormation nested stacks.
4. D. Develop CloudFormation stack sets.

Correct Answer: C

- (Exam Topic 1)
A database is running on an Amazon RDS Mufti-AZ DB instance. A recent security audit found the database to be out of compliance because it was not encrypted. Which approach will resolve the encryption requirement?

1. A. Log in to the RDS console and select the encryption box to encrypt the database
2. B. Create a new encrypted Amazon EBS volume and attach it to the instance
3. C. Encrypt the standby replica in the secondary Availability Zone and promote it to the primary instance.
4. D. Take a snapshot of the RDS instance, copy and encrypt the snapshot and then restore to the new RDS instance

Correct Answer: D

- (Exam Topic 1)
A company has an internal web application that runs on Amazon EC2 instances behind an Application Load
Balancer. The instances run in an Amazon EC2 Auto Scaling group in a single Availability Zone. A SysOps administrator must make the application highly available.
Which action should the SysOps administrator take to meet this requirement?

1. A. Increase the maximum number of instances in the Auto Scaling group to meet the capacity that is required at peak usage.
2. B. Increase the minimum number of instances in the Auto Scaling group to meet the capacity that is required at peak usage.
3. C. Update the Auto Scaling group to launch new instances in a second Availability Zone in the same AWS Region.
4. D. Update the Auto Scaling group to launch new instances in an Availability Zone in a second AWS Region.

Correct Answer: C