Us-west-2a with six EC2 instances, us-west-2b with six EC2 instances, and us-west-2c with no EC2 instancesĮ. Us-west-2a with three EC2 instances, us-west-2b with three EC2 instances, and us-west-2c with three EC2 instances D. Us-west-2a with four EC2 instances, us-west-2b with two EC2 instances, and us-west-2c with two EC2 instancesĭ. Us-west-2a with three EC2 instances, us-west-2b with three EC2 instances, and us-west-2c with no EC2 instancesĬ. Us-west-2a with two EC2 instances, us-west-2b with two EC2 instances, and us-west-2c with two EC2 instancesī. With three AZs available in that region (us-west-2a, us-west-2b, and us-west-2c), which of the following deployments provides 100 percent fault tolerance if any single AZ in us-west-2 becomes unavailable?Ī. Infrequently accessed data You have an application running in us-west-2 that requires six EC2 instances running at all times. Submit the limit increase form and retry the failed requests once approved. You encountered a soft limit of 20 instances per region. You encountered an API throttling situation and should try the failed requests using an exponential decay retry algorithm. Simply terminate the resources already provisioned and re-launch them all in a VPC.ĭ. You need to use Amazon Virtual Private Cloud (VPC) in order to provision more than 20 instances in a single Availability Zone. Select a different Availability Zone and retry the failed request.Ĭ. AWS allows you to provision no more than 20 instances per Availability Zone. Submit the limit increase form and retry the failed requests once approved.ī. What could be a reason for this issue, and how would you resolve it?Ī. After 20 successful requests, subsequent requests failed. Amazon Simple Storage Service After creating a new AWS account, you use the API to request 40 on-demand EC2 instances in a single AZ. Memory use Which of the following is a durable key-value store?ĭ. Which of the following requires a custom CloudWatch metric to monitor?Į. Assign an elastic IP address to the fourth instance. Configure a publicly routable IP address in the host OS of the fourth instance. Assign an elastic IP address to the fourth instance.ĭ. Modify the routing table for the public subnet.Ĭ. Deploy a NAT instance into the public subnet.ī. What should you do to enable Internet access?Ī. You launch a fourth instance in the same subnet, using the same AMI and security group configuration you used for the others, but find that this instance cannot be accessed from the Internet. Three EC2 instances currently running inside the subnet can successfully communicate with other hosts on the internet. Adjust the number of simultaneous mapper tasks. Change the input split size in the MapReduce job configuration.Į.
Enable termination protection for the job flow. Adjust the number of simultaneous mapper tasks.į. Launch the core nodes and task nodes within an Amazon Virtual Cloud.Į. Use a bootstrap action to present the S3 bucket as a local filesystem.ĭ. Change the input split size in the MapReduce job configuration.Ĭ. Use three Spot Instances rather than three On-Demand instances for the task nodes.ī. Which of the following may help reduce the EMR job completion time?Ī. The EMR job runs on two On-Demand core nodes and three On-Demand task nodes. Destination: 0.0.0.0/0 -> Target: your Internet gateway A customer's nightly EMR job processes a single 2-TB data file stored on Amazon Simple Storage Service (S3). Destination: 10.0.0.0/32 -> Target: your virtual private gateway A. Destination: 0.0.0.0/33 -> Target: your virtual private gatewayĭ. Destination: 0.0.0.0/0 -> Target: your Internet gatewayī. Which route must be added to your routing table in order to allow connections to the Internet from your subnet?Ī. Use AWS Identity and Access Management roles for EC2 instances. Store API credentials as an object in Amazon Simple Storage Service. Embed the API credentials into your JAR files.ĭ. Pass API credentials to the instance using instance userdata.Ĭ. Use AWS Identity and Access Management roles for EC2 instances.ī. What method of securely passing credentials to the application should you use?Ī. You are deploying an application on EC2 that must call AWS APIs.
0 kommentar(er)
