A retail company is hosting an ecommerce website on AWS across multiple AWS Regions. The company wants the website to be operational at all times for online purchases. The website stores data in an Amazon RDS for MySQL DB instance.
Which solution will provide the HIGHEST availability for the database?
A. Configure automated backups on Amazon RDS. In the case of disruption, promote an automated backup to be a standalone DB instance. Direct database traffic to the promoted DB instance. Create a replacement read replica that has the promoted DB instance as its source.
B. Configure global tables and read replicas on Amazon RDS. Activate the cross-Region scope. In the case of disruption, use AWS Lambda to copy the read replicas from one Region to another Region.
C. Configure global tables and automated backups on Amazon RDS. In the case of disruption, use AWS Lambda to copy the read replicas from one Region to another Region.
D. Configure read replicas on Amazon RDS. In the case of disruption, promote a cross-Region and read replica to be a standalone DB instance. Direct database traffic to the promoted DB instance. Create a replacement read replica that has the promoted DB instance as its source.
A company is running a custom database in the AWS Cloud. The database uses Amazon EC2 for compute
and uses Amazon Elastic Block Store (Amazon EBS) for storage. The database runs on the latest
generation of EC2 instances and uses a General Purpose SSD (gp2) EBS volume for data.
The current data volume has the following characteristics:
The volume is 512 GB in size.
The volume never goes above 256 GB utilization.
The volume consistently uses around 1,500 IOPS.
A solutions architect needs to conduct an analysis of the current database storage layer and make a
recommendation about ways to reduce cost.
Which solution will provide the MOST cost savings without impacting the performance of the database?
A. Convert the data volume to the Cloud HDD (sc1) type. Leave the volume as 512 GB. Set the volume IOPS to 1,500.
B. Convert the data volume to the Provisioned IOPS SSD (io2) type. Resize the volume to 256 GB. Set the volume IOPS to 1,500.
C. Convert the data volume to the Provisioned IOPS SSD (io2) Block Express type. Leave the volume as 512 GB. Set the volume IOPS to 1,500.
D. Convert the data volume to the General Purpose SSD (gp3) type. Resize the volume to 256 GB. Set the volume IOPS to 1,500.
A company has a serverless multi-tenant content management system on AWS. The architecture contains a web-based front end that interacts with an Amazon API Gateway API that uses a custom AWS Lambda authorizer. The authorizer authenticates a user to its tenant ID and encodes the information in a JSON Web Token (JWT) token. After authentication, each API call through API Gateway targets a Lambda function that interacts with a single Amazon DynamoDB table to fulfill requests.
To comply with security standards, the company needs a stronger isolation between tenants. The company will have hundreds of customers within the first year.
Which solution will meet these requirements with the LEAST operational overhead?
A. Create a DynamoDB table for each tenant by using the tenant ID in the table name. Create a service that uses the JWT token to retrieve the appropriate Lambda execution role that is tenant-specific. Attach IAM policies to the execution role to allow access only to the DynamoDB table for the tenant.
B. Add tenant ID information to the partition key of the DynamoDB table. Create a service that uses the JWT token to retrieve the appropriate Lambda execution role that is tenant-specific. Attach IAM policies to the execution role to allow access to items in the table only when the key matches the tenant ID.
C. Create a separate AWS account for each tenant of the application. Use dedicated infrastructure for each tenant. Ensure that no cross-account network connectivity exists.
D. Add tenant ID as a sort key in every DynamoDB table. Add logic to each Lambda function to use the tenant ID that comes from the JWT token as the sort key in every operation on the DynamoDB table.
A United Kingdom (UK) company recently completed a successful proof of concept in Amazon WorkSpaces. The company also has a large office in the United States (US). Staff members from each office regularly travel between the two locations and need access to a corporate WorkSpace without any reconfiguration of their WorkSpaces client.
The company has purchased a domain by using Amazon Route 53 for the connection alias. The company will use a Windows profile and document management solution.
A solutions architect needs to design the full solution. The solution must use a configuration of WorkSpaces in two AWS Regions and must provide Regional resiliency.
Which solution will meet these requirements?
A. Create a connection alias in a UK Region and a US Region. Associate the connection alias with a directory in the UK Region. Configure the DNS service for the domain in the connection alias.
Configure a geolocation routing policy.
Distribute the connection string to the WorkSpaces users.
B. Create a connection alias in a UK Region. Associated the connection alias with a directory in the UK Region. Configure the DNS service for the domain in the connection alias. Configure a weighted routing policy, with the UK Region set to 1 and a US Region set to 255. Distribute the connection string for the UK Region to the WorkSpaces users.
C. Create a connection alias in a UK Region and a US Region. Associate the connection aliases with a directory in each Region. Configure the DNS service for the domain in the connection alias. Configure a geolocation routing policy. Distribute the connection string to the WorkSpaces users.
D. Create a connection alias in a US Region. Associated the connection alias with a directory in the UK Region. Configure the DNS service for the domain in the connection alias. Configure a multivalue answer routing policy. Distribute the connection string for the US Region to the WorkSpaces users.
A company in the United States (US) has acquired a company in Europe. Both companies use the AWS Cloud. The US company has built a new application with a microservices architecture. The US company is hosting the application across five VPCs in the us-east-2 Region. The application must be able to access resources in one VPC in the eu-west-1 Region. However, the application must not be able to access any other VPCs.
The VPCs in both Regions have no overlapping CIDR ranges. All Accounts are already consolidated in one organization in AWS Organizations.
Which solution will meet these requirements MOST cost-effectively?
A. Create one transit gateway in eu-west-1. Attach the VPCs in us-east-2 and the VPC in eu-west-1 to the transit gateway. Create the necessary route entries in each VPC so that the traffic is routed through the transit gateway.
B. Create one transit gateway in each Region. Attach the involved subnets to the regional transit gateway. Create the necessary route entries in the associated route tables for each subnet so that the traffic is routed through the regional transit gateway. Peer the two transit gateways.
C. Create a full mesh VPC peering connection configuration between all the VPCs. Create the necessary route entries in each VPC so that the traffic is routed through the VPC peering connection.
D. Create one VPC peering connection for each VPC in us-east-2 to the VPC in eu-west-1. Create the necessary route entries in each VPC so that the traffic is routed through the VPC peering connection.
Which of the following is true of an instance profile when an IAM role is created using the console?
A. The instance profile uses a different name.
B. The console gives the instance profile the same name as the role it corresponds to.
C. The instance profile should be created manually by a user.
D. The console creates the role and instance profile as separate actions.
An organization is setting up a multi-site solution where the application runs on premise as well as on AWS to achieve the minimum recovery time objective(RTO).
Which of the below mentioned configurations will not meet the requirements of the multi-site solution scenario?
A. Configure data replication based on RTO.
B. Keep an application running on premise as well as in AWS with full capacity.
C. Setup a single DB instance which will be accessed by both sites.
D. Setup a weighted DNS service like Route 53 to route traffic across sites.
How can a user list the IAM Role configured as a part of the launch config?
A. as-describe-launch-configs -iam-profile
B. as-describe-launch-configs -show-long
C. as-describe-launch-configs -iam-role
D. as-describe-launch-configs -role
A user is thinking to use EBS PIOPS volume.
Which of the below mentioned options is a right use case for the PIOPS EBS volume?
A. Analytics
B. System boot volume
C. Mongo DB
D. Log processing
How does in-memory caching improve the performance of applications in ElastiCache?
A. It improves application performance by deleting the requests that do not contain frequently accessed data.
B. It improves application performance by implementing good database indexing strategies.
C. It improves application performance by using a part of instance RAM for caching important data.
D. It improves application performance by storing critical pieces of data in memory for low-latency access.
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