Amazon SOA-C02 Practice Test - Questions Answers, Page 50

A company has an Amazon RDS for MySQL DB instance that is configured as a Single-AZ DB instance. A SysOps administrator must configure the DB instance to fail over automatically in the event of a failure.

Which action will meet this requirement?

A company is preparing for a marketing campaign that will increase traffic to a new web application. The application uses Amazon API Gateway and AWS Lambda for the application logic. The application stores relevant user data in an Amazon Aurora MySQL DB cluster that has one Aurora Replica. Database queries for the application are 5% write and 95% read. What should a SysOps administrator do to scale the database when traffic increases?

A company's IT help desk reports that a recently deployed EC2 instance has set off an Amazon CloudWatch alarm that monitors HTTP availability. The instance runs Amazon Linux and hosts a non-production web server. A SysOps administrator needs to connect to the instance to review the cloud-init.log file for the instance. The instance is in an isolated subnet that does not have a NAT gateway. The VPC where the instance is located has no VPN connectivity.

Which solution will meet these requirements with the LEAST operational effort?

An ecommerce company uses an Amazon ElastiCache (Redis) cluster for in-memory caching of popular product queries on a shopping website. A SysOps administrator views Amazon CloudWatch metrics data for the ElastiCache cluster and notices a large number of evictions. The SysOps administrator needs to implement a solution to reduce the number of evictions. The solution also must keep the popular queries cached. Which solution will meet these requirements with the LEAST operational overhead?

A company requires the rotation of administrative credentials for production workloads on a regular basis. A SysOps administrator must implement this policy for an Amazon RDS DB instance's master user password.

Which solution will meet this requirement with the LEAST operational effort?

A company is deploying a third-party unit testing solution that is delivered as an Amazon EC2 Amazon Machine Image (AMI). The company is deploying the testing solution on On-Demand Instances. The company wants to use an additional three Spot Instances when the Spot Instance prices drop to a specific threshold. A minimum of three instances are required at all times to operate the testing solution. A SysOps administrator must implement high availability for the architecture. Which solution will meet these requirements with the LEAST management overhead?

SIMULATION

You need to update an existing AWS CloudFormation stack. If needed, a copy to the CloudFormation template is available in an Amazon SB bucket named cloudformation-bucket

1. Use the us-east-2 Region for all resources.

2. Unless specified below, use the default configuration settings.

3. update the Amazon EQ instance named Devinstance by making the following changes to the stack named 1700182:

a) Change the EC2 instance type to us-east-t2.nano.

b) Allow SSH to connect to the EC2 instance from the IP address range

192.168.100.0/30.

c) Replace the instance profile IAM role with IamRoleB.

4. Deploy the changes by updating the stack using the CFServiceR01e role.

5. Edit the stack options to prevent accidental deletion.

6. Using the output from the stack, enter the value of the Prodlnstanceld in the text box below:

A company hosts an application on an Amazon EC2 instance in a single AWS Region. The application requires support for non-HTTP TCP traffic and HTTP traffic.

The company wants to deliver content with low latency by leveraging the AWS network. The company also wants to implement an Auto Scaling group with an

Elastic Load Balancer.

How should a SysOps administrator meet these requirements?

A SysOps administrator needs to configure a caching layer for a read-heavy application that uses an Amazon RDS for PostgreSQL database. The application exists across three AWS Regions. Read and write activities occur in the primary Region. In the two secondary Regions, read-only activity occurs on RDS for PostgreSQL cross-Region read replicas.

The cache in each Region must consist of the same data to provide a consistent user experience across Regions.

Which solution for the caching layer will meet these requirements?