Aws Solutions Architect - Associate (07)

You are in the process of creating a Route 53 DNS failover to direct traffic to two EC2 zones. Obviously, if one fails, you would like Route 53 to direct traffic to the other region. Each region has an ELB with some instances being distributed. What is the best way for you to configure the Route 53 health check?

A user wants to use an EBS-backed Amazon EC2 instance for a temporary job. Based on the input data, the job is most likely to finish within a week. Which of the following steps should be followed to terminate the instance automatically once the job is finished?

Which of the following is true of Amazon EC2 security group?

An Elastic IP address (EIP) is a static IP address designed for dynamic cloud computing. With an EIP, you can mask the failure of an instance or software by rapidly remapping the address to another instance in your account. Your EIP is associated with your AWS account, not a particular EC2 instance, and it remains associated with your account until you choose to explicitly release it. By default how many EIPs is each AWS account limited to on a per region basis?

In Amazon EC2, partial instance-hours are billed .

In EC2, what happens to the data in an instance store if an instance reboots (either intentionally or unintentionally) ?

You are setting up a VPC and you need to set up a public subnet within that VPC. Which following requirement must be met for this subnet to be considered a public subnet?

Can you specify the security group that you created for a VPC when you launch an instance in EC2-Classic?

While using the EC2 GET requests as URLs, is the URL that serves as the entry point for the web service.

You have been asked to build a database warehouse using Amazon Redshift. You know a little about it, including that it is a SQL data warehouse solution, and uses industry standard ODBC and JDBC connections and PostgreSQL drivers. However you are not sure about what sort of storage it uses for database tables. What sort of storage does Amazon Redshift use for database tables?

You are checking the workload on some of your General Purpose (SSD) and Provisioned IOPS (SSD) volumes and it seems that the I/O latency is higher than you require. You should probably check the to make sure that your application is not trying to drive more IOPS than you have provisioned.

Which of the below mentioned options is not available when an instance is launched by Auto Scaling with EC2 Classic?

You have been given a scope to deploy some AWS infrastructure for a large organisation. The requirements are that you will have a lot of EC2 instances but may need to add more when the average utilization of your Amazon EC2 fleet is high and conversely remove them when CPU utilization is low.

Which AWS services would be best to use to accomplish this?

You are building infrastructure for a data warehousing solution and an extra request has come through that there will be a lot of business reporting queries running all the time and you are not sure if your current DB instance will be able to handle it. What would be the best solution for this?

In DynamoDB, could you use IAM to grant access to Amazon DynamoDB resources and API actions?

Much of your company's data does not need to be accessed often, and can take several hours for retrieval time, so it's stored on Amazon Glacier. However someone within your organization has expressed concerns that his data is more sensitive than the other data, and is wondering whether the high level of encryption that he knows is on S3 is also used on the much cheaper Glacier service. Which of the following statements would be most applicable in regards to this concern?

Your EBS volumes do not seem to be performing as expected and your team leader has requested you look into improving their performance. Which of the following is not a true statement relating to the performance of your EBS volumes?

You've created your first load balancer and have registered your EC2 instances with the load balancer. Elastic Load Balancing routinely performs health checks on all the registered EC2 instances and automatically distributes all incoming requests to the DNS name of your load balancer across your registered, healthy EC2 instances. By default, the load balancer uses the protocol for checking the health of your instances.

A major finance organisation has engaged your company to set up a large data mining
application. Using AWS you decide the best service for this is Amazon Elastic MapReduce(EMR) which you know uses Hadoop. Which of the following statements best describes Hadoop?

In Amazon EC2 Container Service, are other container types supported?

A Solutions Architect is designing the architecture for a web application that will be hosted on AWS. Internet users will access the application using HTTP and HTTPS.

How should the Architect design the traffic control requirements?

A company is launching a new static website on Amazon S3 and Amazon CloudFront. The company wants to ensure that all web requests go through only CloudFront. How can a Solutions Architect meet this requirement?

An online retailer has a series of flash sales occurring every Friday. Sales traffic will increase during the sales only and the platform will handle the increased load. The platform is a three-tier application. The web tier runs on Amazon EC2 instances behind an Application Load Balancer. Amazon CloudFront is used to reduce web server load, but many requests for dynamic content must go to the web servers.

What should be done to the web tier to reduce costs without impacting performance or reliability?

A company's new web application running on Amazon EC2 across multiple Availability Zones (AZs) will be heavily accessed during regular business hours. After business hours, usage will be minimal. What fleet-scaling approach should be used to size the EC2 fleet to handle the traffic demands?

An application provides a feature that allows users to securely download private and personal files. The web server is currently overwhelmed with serving files for download. A Solutions Architect must find a more effective solution to reduce web server load and costs, and must allow users to download only their own files.

Which solution meets all requirements?

An application calls a service run by a vendor. The vendor charges based on the number of calls. The finance department needs to know the number of calls that are made to the service to validate the billing statements.

How can a Solutions Architect design a system to durably store the number of calls without requiring changes to the application?

An application runs in a VPC on Amazon EC2 instances behind an Application Load Balancer. Traffic to the Amazon EC2 instances must be limited to traffic from the Application Load Balancer.

Based on these requirements, the security group configuration should only allow traffic from:

A Solutions Architect is reviewing an application that writes data to an Amazon DynamoDB table on a daily basis. Random table reads occur many times per second. The company needs to allow thousands of low-latency reads and avoid any negative impact to the rest of the application.

What should the Solutions Architect do to meet the company's goals?

An environment has an Auto Scaling group across two Availability Zones referred to as AZ-a and AZ-b and a default termination policy. AZ-a has four Amazon EC2 instances, and AZ-b has three EC2 instances. None of the instances is protected from a scale-in.

How will Auto Scaling proceed if there is a scale-in event?

A Solutions Architect is designing a new web application on Amazon EC2. The system must make application-specific metrics, such as application security events, available to the SysOps teams.

How should the Solutions Architect enable this in the design?

A Solutions Architect needs to convert potential single points of failure to a highly-available configuration. The current architecture contains Amazon EC2 instances with databases running in one Availability Zone. Web-tier resources have not been given public addresses, but still require Internet access.

Which solution should the Architect use to maintain high availability?

An organization hosts 10 microservices, each in an Auto Scaling group behind individual Classic Load Balancers. Each EC2 instance is running at optimal load.

Which of the following actions would allow the organization to reduce costs without impacting performance?

A Solutions Architect is designing a ride-sharing application. The application needs consistent and single- digit millisecond latency. In addition, the application must integrate with a highly scalable and fully managed database service to track GPS coordinates and user data for all rides.

Which database service should the Solutions Architect use to meet these performance requirements?

An application has components running in a public subnet and a private subnet. The components within the private subnet must connect to the internet to receive updates.

How should this be accomplished without moving the components into a public subnet?

A Solutions Architect is designing a multicontainer-based web application. Parts of the web application, / orders and /sale-event, must scale independently while maintaining a single Fully Qualified Domain Name.

Which AWS services will help the Architect build this platform? (Select TWO.)

A company will host a static website within an Amazon S3 bucket. The website will serve millions of users globally, and the company wants to minimize data transfer costs.

What should the Solutions Architect do to ensure costs are kept to a minimum?

A company has a web application that makes requests to a backend API service. The API service is behind an Elastic Load Balancer running on Amazon EC2 instances.

Most backend API service endpoint calls finish very quickly, but one endpoint that makes calls to create objects in an external service takes a long time to complete. These long-running calls are causing client timeouts and increasing overall system latency.

What should be done to minimize the system throughput impact of the slow-running endpoint?

A company will run different data analytics jobs on large petabyte-scale datasets, using standard SQL and existing business intelligence tools. The data is mostly structured, but part of the data is unstructured and resides in Amazon S3.

What technology should be used to support this use case?

A Solutions Architect is investigating purchasing options for a batch processing application on Amazon EC2. The batch job downloads an image from an Amazon S3 bucket, adds copyright information, and uploads it back to Amazon S3. It normally takes 5 to 10 hours to process all the files uploaded each week. The application has built-in capabilities to process files in parallel, recover from the instance failures, and continue the processing from where it left off.

What is the MOST cost-effective purchasing option the Solutions Architect can recommed?

A team has developed a new web application in an AWS Region that has three Availability Zones: AZ-a, AZ-b, and AZ-c. This application must be fault tolerant and needs at least six Amazon EC2 instances running at all times. The application must tolerate the loss of connectivity to any single Availability Zone so that the application can continue to run.

Which configurations will meet these requirements? (Select TWO.)

A retail company runs hourly flash sales and has a performance issue on its Amazon RDS for PostgreSQL database. The Database Administrators have identified that the issue with performance happens when finance and marketing employees refresh sales dashboards that are used for reporting real-time sales data.

What should be done to resolve the issue without impacting performance?

A Solutions Architect is designing a high-performance computing job that runs on Amazon EC2 instances in private subnets. To allow the application to download patches, the infrastructure must be altered to allow the instances to access external endpoints. Any changes to the infrastructure must involve minimal ongoing systems management effort.

What will allow the EC2 instances to access the endpoint while meeting these requirements?

An application runs on Amazon EC2 instances in multiple Availability Zones (AZs) behind an Application Load Balancer. The load balancer is in public subnets; the EC2 instances are in private subnets and must not be accessible from the internet. The EC2 instances must call external services on the internet. If one AZ becomes unavailable, the remaining EC2 instances must still be able to call the external services.

How should these requirements be met?