aws-02-400_在线真题试卷与模拟练习_aws-02-400

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A company hosts a training site on a fleet of Amazon EC2 instances. The company anticipates that its new course, which consists of dozens of training videos on the site, will be extremely popular when it is released in 1 week.

What should a solutions architect do to minimize the anticipated server load?

A media company stores video content in an Amazon Elastic Block Store (Amazon EBS) volume. A certain video file has become popular and a large number of users across the world are accessing this content.This has resulted in a cost increase.

Which action will DECREASE cost without compromising user accessibility?

A solutions architect is creating an application that will handle batch processing of large amounts of data. The input data will be held in Amazon S3 and the output data will be stored in a different S3 bucket. For processing, the application will transfer the data over the network between multiple Amazon EC2 instances.

What should the solutions architect do to reduce the overall data transfer costs?

A company is hosting an election reporting website on AWS for users around the world. The website uses Amazon EC2 instances for the web and application tiers in an Auto Scaling group with Application Load Balancers. The database tier uses an Amazon RDS for MySQL database. The website is updated with election results once an hour and has1 historically observed hundreds of users accessing the reports.The company is expecting a significant increase in demand because of upcoming elections in different countries. A solutions architect must improve the website's ability to handle additional demand while minimizing the need for additional EC2 instances.

Which solution will meet these requirements?

A company is running a three-tier web application to process credit card payments. The front-end user interface consists of static webpages. The application tier can have long-running processes.The database tier uses MySQL.The application is currently running on a single, general purpose large Amazon EC2 instance. A solutions architect needs to decouple the services to make the web application highly available.

Which solution would provide the HIGHEST availability?

A company operates an ecommerce website on Amazon EC2 instances behind an Application Load Balancer (ALB) in an Auto Scaling group. The site is experiencing performance issues related to a high request rate from illegitimate external systems with changing IP addresses. The security team is worried about potential DDoS attacks against the
website. The company must block the illegitimate incoming requests in a way that has a minimal impact on legitimate users.

What should a solutions architect recommend?

A company is creating an architecture for a mobile app that requires minimal latency for its users. The company's architecture consists of Amazon EC2 instances behind an Application Load Balancer running in1 an Auto Scaling group. The EC2 instances connect to Amazon RDS. Application beta testing showed there was a slowdown when reading
the data. However, the metrics indicate that the EC2 instances do not cross any CPU utilization thresholds.

How can this issue be addressed?

A company is hosting its static website in an Amazon S3 bucket, which is the origin for Amazon CloudFront. The company has users in the United States, Canada, and Europe and wants to reduce.

What should a solutions architect recommend?

A media company stores video content in an Amazon Elastic Block Store (Amazon EBS) volume. A certain video files has become popular and a large number of user across the world are accessing this content.This has resulted in a cost increase.

Which action will DECREASE cost without compromising user accessibility?

A solution architect is designing a shared storage solution for an Auto Scaling web application. The company anticipates making frequent changes to the content, so the solution must have strong consistency.

Which solution requires the LEAST amount of effort?

A solution architect creating an application that will handle batch processing of large amount of data. The input data will be held in Amazon S3 and the output data will be stored in a different S3 bucket. For processing the application will transfer the data over the network between multiple Amazon EC2 instances.

What should the solution architect do to reduce the overall data transfer costs ?

A company previously migrated its data warehouse solution to AWS. The company also has an AWS Direct Connect connection Corparate office user query the data warehouse using a visulization tool. Th average size of a query returned by th data warehouse is 50 MB and each webpage sent by the visualization tool is approximately 500 KB. Result sets returned by the data warehouse are not cached.

Which solution provides the LOWEST data transfer egress cost for the company?

A company provides an API to its users that automates inquiries for tax complutations based on item prices. The company experiences a larger number of inquires during the holiday season only that cause slower response times. A solution architect needs to design a solution that is scalable and elastic.

What should the solutions architect do to accomplish this?

A company uses a legacy on-premises analytics application that operate on gigabytes of .csv and represents months of data. The legacy application cannit handle the growing size of .csv files. New CSV files added daily from various data sources to a central on-premises storage location. The company wants to continuew to support the legacy application while user learn AWS analytics services. To achieve this, a solution architect wants to maintain two synchronizes copies of all the .csv files on-premises and in Amazon S3.

Which solution should the solution architect recommend?

Management has decided to deploy all AWS VPCs with IPv6 enabled. After sometime, a solutions architect tries to launch a new instance and receives an error stating that there is no enough IP address space available in the subnetWhat should the solutions architect do to fix this?

A company is developing a new machine learning model solution in AWS. The models are developed as independent microservices that fetch about 1 GB of model data from Amazon S3 at startup and load the data into memory. users access the models through an asychronous API. Users can send a request or a batch of requests and specify where the result should be sent. The comapny provides models to hundreds of users. The usage patterns for the models are irregular. somes models could be unused for days or weeks. other models could receive batches of thousands of requests at a time.

Which solution meets these requirements?

A company has a mobile game that reads most of its metadata from an Amazon RDS DB instances. As the game increased in popularity, developer noticed slowdowns related to the game's metadata load times. Performance metrics Indicate that simply scaling the database will not help. A solutions architect must explore all options that include
capabilities for snapshots, replication, and sub-millisecond response times.

What should the solutions architect recommend to solve the issues?

A company runs and application that uses multiple Amazon EC2 instances to gather data from its users. The data is then processed and transferred to Amazon S3 for long-term storage. A review of the application shows that there were long periods of time when the EC2 instances were not being used. A solution architect needs to design a solution that optimizes utilization and reduces costs.

Which solution meets these requirements?

A solutions architect is designing a VPC with public and private subnets. The VPC and subnets use IP 4 CIDR blocks. There is one public subnet and one private subnet in each of three Availability Zone (AZs) for high availability. An internet gateway is used to provide internet access for the public subnets. The private subnets require access to the internet to allow Amazon EC2 instances to download software updates.

What should the solutions architect do to enable Intrnet access for the private subnets?

A solutions architect needs to design a network that will allow multiple Amazon EC2 instances to access a common data source used for mission-critical data that can be accessed by all the EC2 instances simultaneously. The solution must be highly scalable, easy to implement, and support the NFS protocol.

Which solution meets these requirements?

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