A company that provides wireless services needs a solution to store and analyze log files about user activities. Currently, log files are delivered daily to AmazonLinux on an Amazon EC2 instance. A batch script is run once a day to aggregate data used for analysis by a third-party tool. The data pushed to the third-party tool is used to generate a visualization for end users. The batch script is cumbersome to maintain, and it takes several hours to deliver the ever-increasing data volumes to the third-party tool. The company wants to lower costs, and is open to considering a new tool that minimizes development effort and lowers administrative overhead. The company wants to build a more agile solution that can store and perform the analysis in near-real time, with minimal overhead. The solution needs to be cost effective and scalable to meet the company's end-user base growth. Which solution meets the company's requirements?
Question 452
A company wants to move a web application to AWS. The application stores session information locally on each web server, which will make auto scaling difficult. As part of the migration, the application will be rewritten to decouple the session data from the web servers. The company requires low latency, scalability, and availability. Which service will meet the requirements for storing the session information in the MOST cost-effective way?
Question 453
A company has an Amazon EC2 deployment that has the following architecture: - An application tier that contains 8 m4.xlarge instances - A Classic Load Balancer - Amazon S3 as a persistent data storeAfter one of the EC2 instances fails, users report very slow processing of their requests. A Solutions Architect must recommend design changes to maximize system reliability. The solution must minimize costs. What should the Solutions Architect recommend?
Question 454
An on-premises application will be migrated to the cloud. The application consists of a single Elasticsearch virtual machine with data source feeds from local systems that will not be migrated, and a Java web application on Apache Tomcat running on three virtual machines. The Elasticsearch server currently uses 1 TB of storage out of 16 TB available storage, and the web application is updated every 4 months. Multiple users access the web application from the Internet. There is a 10Gbit AWS Direct Connect connection established, and the application can be migrated over a scheduled 48-hour change window. Which strategy will have the LEAST impact on the Operations staff after the migration?
Question 455
A company's application is increasingly popular and experiencing latency because of high volume reads on the database server. The service has the following properties: - A highly available REST API hosted in one region using Application Load Balancer (ALB) with auto scaling. - A MySQL database hosted on an Amazon EC2 instance in a single Availability Zone. The company wants to reduce latency, increase in-region database read performance, and have multi-region disaster recovery capabilities that can perform a live recovery automatically without any data or performance loss (HA/DR). Which deployment strategy will meet these requirements?
Question 456
A company runs a three-tier application in AWS. Users report that the application performance can vary greatly depending on the time of day and functionality being accessed. The application includes the following components: - Eight t2.large front-end web servers that serve static content and proxy dynamic content from the application tier. - Four t2.large application servers. - One db.m4.large Amazon RDS MySQL Multi-AZ DB instance. Operations has determined that the web and application tiers are network constrained. Which of the following is a cost effective way to improve application performance? (Choose two.)
Question 457
An online retailer needs to regularly process large product catalogs, which are handled in batches. These are sent out to be processed by people using theAmazon Mechanical Turk service, but the retailer has asked its Solutions Architect to design a workflow orchestration system that allows it to handle multiple concurrent Mechanical Turk operations, deal with the result assessment process, and reprocess failures. Which of the following options gives the retailer the ability to interrogate the state of every workflow with the LEAST amount of implementation effort?
Question 458
An organization has two Amazon EC2 instances: - The first is running an ordering application and an inventory application. The second is running a queuing system. During certain times of the year, several thousand orders are placed per second. Some orders were lost when the queuing system was down. Also, the organization's inventory application has the incorrect quantity of products because some orders were processed twice. What should be done to ensure that the applications can handle the increasing number of orders?
Question 459
A company is migrating its on-premises build artifact server to an AWS solution. The current system consists of an Apache HTTP server that serves artifacts to clients on the local network, restricted by the perimeter firewall. The artifact consumers are largely build automation scripts that download artifacts via anonymousHTTP, which the company will be unable to modify within its migration timetable. The company decides to move the solution to Amazon S3 static website hosting. The artifact consumers will be migrated to Amazon EC2 instances located within both public and private subnets in a virtual private cloud (VPC). Which solution will permit the artifact consumers to download artifacts without modifying the existing automation scripts?
Question 460
A group of research institutions and hospitals are in a partnership to study 2 PBs of genomic data. The institute that owns the data stores it in an Amazon S3 bucket and updates it regularly. The institute would like to give all of the organizations in the partnership read access to the data. All members of the partnership are extremely cost-conscious, and the institute that owns the account with the S3 bucket is concerned about covering the costs for requests and data transfers from Amazon S3. Which solution allows for secure datasharing without causing the institute that owns the bucket to assume all the costs for S3 requests and data transfers?
