AWS解决方案架构师助理级考试指南：重点解析与Q&A

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Which combination of steps must the Architect complete to meet these requirements? (Choose

two.)

A. Create a bastion host that authenticates users against the corporate directory.

B. Create a bastion host with security group rules that only allow traffic from the corporate network.

C. Attach an IAM role to the bastion host with relevant permissions.

D. Configure the web servers' security group to allow SSH traffic from a bastion host.

E. Deny all SSH traffic from the corporate network in the inbound network ACL.

Answer: BD

Q59. A Solutions Architect needs to use AWS to implement pilot light disaster recovery for a

three-tier web application hosted in an on-premises datacenter.

Which solution allows rapid provision of working, fully-scaled production environment?

A. Continuously replicate the production database server to Amazon RDS.

Use AWS CloudFormation to deploy the application and any additional servers if necessary.

B. Continuously replicate the production database server to Amazon RDS.

Create one application load balancer and register on-premises servers.

Configure ELB Application Load Balancer to automatically deploy Amazon EC2 instances for

application and additional servers if the on-premises application is down.

C. Use a scheduled Lambda function to replicate the production database to AWS.

Use Amazon Route 53 health checks to deploy the application automatically to Amazon S3 if

production is unhealthy.

D. Use a scheduled Lambda function to replicate the production database to AWS.

servers if production is unavailable.

Answer: A

Q60. A Solutions Architect notices slower response times from an application. The CloudWatch

metrics on the MySQL RDS indicate Read IOPS are high and fluctuate significantly when the

database is under load.How should the database environment be re-designed to resolve the IOPS

fluctuation?

A. Change the RDS instance type to get more RAM.

B. Change the storage type to Provisioned IOPS.

C. Scale the web server tier horizontally.

D. Split the DB layer into separate RDS instances.

Answer: B

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Q61. A Solutions Architect is designing a solution that can monitor memory and disk space

utilization of all Amazon EC2 instances running Amazon Linux and Windows.

Which solution meets this requirement?

A. Default Amazon CloudWatch metrics.

B. Custom Amazon CloudWatch metrics.

C. Amazon Inspector resource monitoring.

D. Default monitoring of Amazon EC2 instances.

Answer: B

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/monitoring_ec2.html

Q62. A Solutions Architect is creating a new relational database. The Compliance team will use

the database, and mandates that data content must be stored across three different Availability

Zones.

Which of the following options should the Architect Use?

A. Amazon Aurora

B. Amazon RDS MySQL with Multi-AZ enabled

C. Amazon DynamoDB

D. Amazon ElastiCache

Answer: A

Q63. A company needs to quickly ensure that all files created in an Amazon S3 bucket in us-east-1

are also available in another bucket in ap-southeast-2.

Which option represents the SIMPLIEST way to implement this design?

A. Add an S3 lifecycle rule to move any files from the bucket in us-east-1 to the bucket in

ap-southeast-2.

B. Create a Lambda function to be triggered for every new file in us-east-1 that copies the file to

the bucket in ap-southeast-2.

C. Use SNS to notify the bucket in ap-southeast-2 to create a file whenever the file is created in

the bucket in us-east-1.

D. Enable versioning and configure cross-region replication from the bucket in us-east-1 to the

bucket in ap-southeast-2.

Answer: D

Q64. An organization has a long-running image processing application that runs on Spot Instances

that will be terminated when interrupted. A highly available workload must be designed to respond

to Spot Instance interruption notices. The solution must include a two-minute warning when there

is not enough capacity.

How can these requirements be met?

A. Use Amazon CloudWatch Events to invoke an AWS Lambda function that can launch

On-Demand Instances.

B. Regularly store data from the application on Amazon DynamoDB. Increase the maximum

number of instances in the AWS Auto Scaling group.

C. Manually place a bid for additional Spot Instances at a higher price in the same AWS Region

and Availability Zone.

D. Ensure that the Amazon Machine Image associated with the application has the latest

configurations for the launch configuration.

Answer: A

Q65. A company has an Amazon RDS-managed online transaction processing system that has

very heavy read and write. The Solutions Architect notices throughput issues with the system.

How can the responsiveness of the primary database be improved?

A. Use asynchronous replication for standby to maximize throughput during peak demand.

B. Offload SELECT queries that can tolerate stale data to READ replica.

C. Offload SELECT and UPDATE queries to READ replica.

D. Offload SELECT query that needs the most current data to READ replica.

Answer: B

https://aws.amazon.com/rds/faqs/

Q66. A company is designing a failover strategy in Amazon Route 53 for its resources between

two AWS Regions. The company must have the ability to route a user's traffic to the region with

least latency, and if both regions are healthy, Route 53 should route traffic to resources in both

regions.

Which strategy should the Solutions Architect recommend?

A. Configure active-active failover using Route 53 latency DNS records.

B. Configure active-passive failover using Route 53 latency DNS records.

C. Configure active-active failover using Route 53 failover DNS records.

D. Configure active-passive failover using Route 53 failover DNS records.

Answer: A

Q67. A company is developing several critical long-running applications hosted on Docker.

How should a Solutions Architect design a solution to meet the scalability and orchestration

requirements on AWS?

A. Use Amazon ECS and Service Auto Scaling.

B. Use Spot Instances for orchestration and for scaling containers on existing Amazon EC2

instances.

C. Use AWS OpsWorks to launch containers in new Amazon EC2 instances.

D. Use Auto Scaling groups to launch containers on existing Amazon EC2 instances.

Answer: A

https://aws.amazon.com/getting-started/tutorials/deploy-docker-containers/

Q68. A Solutions Architect is developing a new web application on AWS. The Architect expects the

application to become very popular, so the application must scale to support the load. The

Architect wants to focus on software development and deploying new features without

provisioning or managing instances.

What solution is appropriate?

A. Amazon API Gateway and AWS Lambda

B. Elastic Load Balancing with Auto Scaling groups and Amazon EC2

C. Amazon API Gateway and Amazon EC2

D. Amazon CloudFront and AWS Lambda

Answer: A

Q69. A Solutions Architect is deploying a new production MySQL database on AWS. It is critical

that the database is highly available.

What should the Architect do to achieve this goal with Amazon RDS?

A. Create a read replica of the primary database and deploy it in a different AWS Region.

B. Enable multi-AZ to create a standby database in a different Availability Zone.

C. Enable multi-AZ to create a standby database in a different AWS Region.

D. Create a read replica of the primary database and deploy it in a different Availability Zone.

Answer: B

Q70. An organization designs a mobile application for their customers to upload photos to a site.

The application needs a secure login with MFA. The organization wants to limit the initial build time

and maintenance of the solution.

Which solution should a Solutions Architect recommend to meet the requirements?

A. Use Amazon Cognito Identity with SMS-based MFA.

B. Edit AWS IAM policies to require MFA for all users.

C. Federate IAM against corporate AD that requires MFA.

D. Use Amazon API Gateway and require SSE for photos.

Answer: A

Q71. A Solutions Architect is designing a solution to monitor weather changes by the minute. The

frontend application is hosted on Amazon EC2 instances. The backend must be scalable to a

virtually unlimited size, and data retrieval must occur with minimal latency.

Which AWS service should the Architect use to store the data and achieve these requirements?

A. Amazon S3

B. Amazon DynamoDB

C. Amazon RDS

D. Amazon EBS

Answer: B

Q72. A company hosts a website on premises. The website has a mix of static and dynamic

content, but users experience latency when loading static files.

Which AWS service can help reduce latency?

A. Amazon CloudFront with on-premises servers as the origin

B. ELB Application Load Balancer

C. Amazon Route 53 latency-based routing

D. Amazon EFS to store and server static files

Answer: A

Q73. A company wants to analyze all of its sales information aggregated over the last 12 months.

The company expects there to be over 10TB of data from multiple sources.

What service should be used?

A. Amazon DynamoDB

B. Amazon Aurora MySQL

C. Amazon RDS MySQL

D. Amazon Redshift

Answer: D

Q74. A media company has deployed a multi-tier architecture on AWS. Web servers are deployed

in two Availability Zones using an Auto Scaling group with a default Auto Scaling termination policy.

The web servers' Auto Scaling group currently has 15 instances running.

Which instance will be terminated first during a scale-in operation?

A. The instance with the oldest launch configuration.

B. The instance in the Availability Zone that has most instances.

C. The instance closest to the next billing hour.

D. The oldest instance in the group.

Answer: B

Q75. A retail company has sensors placed in its physical retail stores. The sensors send

messages over HTTP when customers interact with in-store product displays. A Solutions

Architect needs to implement a system for processing those sensor messages; the results must be

available for the Data Analysis team.

Which architecture should be used to meet these requirements?

A. Implement an Amazon API Gateway to server as the HTTP endpoint. Have the API Gateway

trigger an AWS Lambda function to process the messages, and save the results to an Amazon

DynamoDB table.

B. Create an Amazon EC2 instance to server as the HTTP endpoint and to process the messages.

Save the results to Amazon S3 for the Data Analysis team to download.

C. Use Amazon Route 53 to direct incoming sensor messages to a Lambda function to process

the message and save the results to a Amazon DynamoDB table.

D. Use AWS Direct Connect to connect sensors to DynamoDB so that data can be written directly

to a DynamoDB table where it can be accessed by the Data Analysis team.

Answer: A

Q76. A client is migrating a legacy web application to the AWS Cloud. The current system uses an

Oracle database as a relational database management system solution. Backups occur every

night, and the data is stored on-premises. The Solutions Architect must automate the backups and

identity a storage solution while keeping costs low.

Which AWS service will meet these requirements?

A. Amazon RDS

B. Amazon RedShift

C. Amazon DynamoDB Accelerator

D. Amazon ElastiCache

Answer: A

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AWS解决方案架构师助理级考试指南：重点解析与Q&A

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