- Email support@dumps4free.com
Topic 1: Exam Pool A
A company is running a critical application that uses an Amazon RDS for MySQL database
to store data. The RDS DB instance is deployed in Multi-AZ mode.
A recent RDS database failover test caused a 40-second outage to the application A
solutions architect needs to design a solution to reduce the outage time to less than 20
seconds.
Which combination of steps should the solutions architect take to meet these
requirements? (Select THREE.)
A. Use Amazon ElastiCache for Memcached in front of the database
B. Use Amazon ElastiCache for Redis in front of the database.
C. Use RDS Proxy in front of the database
D. Migrate the database to Amazon Aurora MySQL
E. Create an Amazon Aurora Replica
F. Create an RDS for MySQL read replica
Explanation: Migrate the database to Amazon Aurora MySQL. - Create an Amazon Aurora Replica. - Use RDS Proxy in front of the database. - These options are correct because they address the requirement of reducing the failover time to less than 20 seconds. Migrating to Amazon Aurora MySQL and creating an Aurora replica can reduce the failover time to less than 20 seconds. Aurora has a built-in, fault-tolerant storage system that can automatically detect and repair failures. Additionally, Aurora has a feature called "Aurora Global Database" which allows you to create read-only replicas across multiple AWS regions which can further help to reduce the failover time. Creating an Aurora replica can also help to reduce the failover time as it can take over as the primary DB instance in case of a failure. Using RDS proxy can also help to reduce the failover time as it can route the queries to the healthy DB instance, it also helps to balance the load across multiple DB instances.
A solutions architect needs to advise a company on how to migrate its on-premises data
processing application to the AWS Cloud. Currently, users upload input files through a web
portal. The web server then stores the uploaded files on NAS and messages the
processing server over a message queue. Each media file can take up to 1 hour to
process. The company has determined that the number of media files awaiting processing
is significantly higher during business hours, with the number of files rapidly declining after
business hours.
What is the MOST cost-effective migration recommendation?
A. Create a queue using Amazon SQS. Configure the existing web server to publish to the new queue. When there are messages in the queue, invoke an AWS Lambda function to pull requests from the queue and process the files. Store the processed files in an Amazon S3 bucket.
B. Create a queue using Amazon M. Configure the existing web server to publish to the new queue. When there are messages in the queue, create a new Amazon EC2 instance to pull requests from the queue and process the files. Store the processed files in Amazon EFS. Shut down the EC2 instance after the task is complete.
C. Create a queue using Amazon MO. Configure the existing web server to publish to the new queue. When there are messages in the queue, invoke an AWS Lambda function to pull requests from the queue and process the files. Store the processed files in Amazon EFS.
D. Create a queue using Amazon SOS. Configure the existing web server to publish to the new queue. Use Amazon EC2 instances in an EC2 Auto Scaling group to pull requests from the queue and process the files. Scale the EC2 instances based on the SOS queue length. Store the processed files in an Amazon S3 bucket.
A company has migrated an application from on premises to AWS. The application
frontend is a static website that runs on two Amazon EC2 instances behind an Application
Load Balancer (ALB). The application backend is a Python application that runs on three
EC2 instances behind another ALB. The EC2 instances are large, general purpose On-
Demand Instances that were sized to meet the on-premises specifications for peak usage
of the application.
The application averages hundreds of thousands of requests each month. However, the
application is used mainly during lunchtime and receives minimal traffic during the rest of
the day.
A solutions architect needs to optimize the infrastructure cost of the application without
negatively affecting the application availability.
Which combination of steps will meet these requirements? (Choose two.)
A. Change all the EC2 instances to compute optimized instances that have the same number of cores as the existing EC2 instances.
B. Move the application frontend to a static website that is hosted on Amazon S3.
C. Deploy the application frontend by using AWS Elastic Beanstalk. Use the same instance type for the nodes.
D. Change all the backend EC2 instances to Spot Instances.
E. Deploy the backend Python application to general purpose burstable EC2 instances that have the same number of cores as the existing EC2 instances.
Explanation: Moving the application frontend to a static website that is hosted on Amazon
S3 will save cost as S3 is cheaper than running EC2 instances.
Using Spot instances for the backend EC2 instances will also save cost, as they are
significantly cheaper than On-Demand instances. This will be suitable for the application,
as it has minimal traffic during the rest of the day, and the availability of spot instances will
not negatively affect the application's availability.
A company uses Amazon S3 to store files and images in a variety of storage classes. The
company's S3 costs have increased substantially during the past year.
A solutions architect needs to review data trends for the past 12 months and identity the
appropriate storage class for the objects.
Which solution will meet these requirements?
A. Download AWS Cost and Usage Reports for the last 12 months of S3 usage. Review AWS Trusted Advisor recommendations for cost savings.
B. Use S3 storage class analysis. Import data trends into an Amazon QuickSight dashboard to analyze storage trends.
C. Use Amazon S3 Storage Lens. Upgrade the default dashboard to include advanced metrics for storage trends.
D. Use Access Analyzer for S3. Download the Access Analyzer for S3 report for the last 12 months. Import the csvfile to an Amazon QuickSight dashboard.
A company is using an on-premises Active Directory service for user authentication. The
company wants to use the same authentication service to sign in to the company's AWS
accounts, which are using AWS Organizations. AWS Site-to-Site VPN connectivity already
exists between the on-premises environment and all the company's AWS accounts.
The company's security policy requires conditional access to the accounts based on user
groups and roles. User identities must be managed in a single location.
Which solution will meet these requirements?
A. Configure AWS Single Sign-On (AWS SSO) to connect to Active Directory by using SAML 2.0. Enable automatic provisioning by using the System for Cross- domain Identity Management (SCIM) v2.0 protocol. Grant access to the AWS accounts by using attributebased access controls (ABACs).
B. Configure AWS Single Sign-On (AWS SSO) by using AWS SSO as an identity source. Enable automatic provisioning by using the System for Cross-domain Identity Management (SCIM) v2.0 protocol. Grant access to the AWS accounts by using AWS SSO permission sets.
C. In one of the company's AWS accounts, configure AWS Identity and Access Management (IAM) to use a SAML 2.0 identity provider. Provision IAM users that are mapped to the federated users. Grant access that corresponds to appropriate groups in Active Directory. Grant access to the required AWS accounts by using cross-account IAM users.
D. In one of the company's AWS accounts, configure AWS Identity and Access Management (IAM) to use an OpenID Connect (OIDC) identity provider. Provision IAM roles that grant access to the AWS account for the federated users that correspond to appropriate groups in Active Directory. Grant access to the required AWS accounts by using cross-account IAM roles.
| Page 7 out of 97 Pages |
| Previous |