Amazon SAP-C01 Practice Test - Questions Answers, Page 23
List of questions
Question 221
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A company has a photo sharing social networking application. To provide a consistent experience for users, the company performs some image processing on the photos uploaded by users before publishing on the application. The image processing is implemented using a set of Python libraries.
The current architecture is as follows:
The image processing Python code runs in a single Amazon EC2 instance and stores the processed images in an Amazon S3 bucket named ImageBucket. The front-end application, hosted in another bucket, loads the images from ImageBucket to display to users.
With plans for global expansion, the company wants to implement changes in its existing architecture to be able to scale for increased demand on the application and reduce management complexity as the application scales. Which combination of changes should a solutions architect make? (Choose two.)
Question 222
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A company wants to analyze log data using date ranges with a custom application running on AWS. The application generates about 10 GB of data every day, which is expected to grow. A Solutions Architect is tasked with storing the data in Amazon S3 and using Amazon Athena to analyze the data.
Which combination of steps will ensure optimal performance as the data grows? (Choose two.)
Question 223
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A company has a VPC with two domain controllers running Active Directory in the default configuration. The VPC DHCP options set is configured to use the IP addresses of the two domain controllers. There is a VPC interface endpoint defined; but instances within the VPC are not able to resolve the private endpoint addresses.
Which strategies would resolve this issue? (Choose two.)
Question 224
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A company runs applications on Amazon EC2 instances. The company plans to begin using an Auto Scaling group for the instances. As part of this transition, a solutions architect must ensure that Amazon CloudWatch Logs automatically collects logs from all new instances. The new Auto Scaling group will use a launch template that includes the Amazon Linux 2 AMI and no key pair. Which solution meets these requirements?
Explanation:
Reference: https://docs.aws.amazon.com/prescriptive-guidance/latest/implementing-logging-monitoring-cloudwatch/installcloudwatch-systems-manager.html
Question 225
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A Solutions Architect is designing a highly available and reliable solution for a cluster of Amazon EC2 instances. The Solutions Architect must ensure that any EC2 instance within the cluster recovers automatically after a system failure. The solution must ensure that the recovered instance maintains the same IP address.
How can these requirements be met?
Explanation:
Reference: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-recover.html
Question 226
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A bank is designing an online customer service portal where customers can chat with customer service agents. The portal is required to maintain a 15-minute RPO or RTO in case of a regional disaster. Banking regulations require that all customer service chat transcripts must be preserved on durable storage for at least 7 years, chat conversations must be encrypted inflight, and transcripts must be encrypted at rest. The Data Loss Prevention team requires that data at rest must be encrypted using a key that the team controls, rotates, and revokes.
Which design meets these requirements?
Explanation:
Reference: https://docs.aws.amazon.com/AmazonS3/latest/dev/replication.html
Question 227
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How can multiple compute resources be used on the same pipeline in AWS Data Pipeline?
Explanation:
Multiple compute resources can be used on the same pipeline in AWS Data Pipeline by defining multiple cluster objects in your definition file and associating the cluster to use for each activity via its runs On field, which allows pipelines to combine AWS and on premise resources, or to use a mix of instance types for their activities.
Reference:
https://aws.amazon.com/datapipeline/faqs/
Question 228
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A user has created a VPC with CIDR 20.0.0.0/16. The user has created one subnet with CIDR 20.0.0.0/16 in this VPC. The user is trying to create another subnet with the same VPC for CIDR 20.0.0.1/24. What will happen in this scenario?
Explanation:
A Virtual Private Cloud (VPC) is a virtual network dedicated to the user's AWS account. A user can create a subnet with VPC and launch instances inside that subnet. The user can create a subnet with the same size of VPC. However, he cannot create any other subnet since the CIDR of the second subnet will conflict with the first subnet.
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Subnets.html
Question 229
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A company is using an Amazon EMR cluster to run its big data jobs. The cluster’s jobs are invoked by AWS Step Functions Express Workflows that consume various Amazon Simple Queue Service (Amazon SQS) queues. The workload of this solution is variable and unpredictable. Amazon CloudWatch metrics show that the cluster's peak utilization is only 25% at times and that the cluster sits idle the rest of the time. A solutions architect must optimize the costs of the cluster without negatively impacting the time it takes to run the various jobs. What is the MOST cost-effective solution that meets these requirements?
Explanation:
Reference: https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-instance-fleet.html
Question 230
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A solutions architect needs to migrate 50 TB of NFS data to Amazon S3. The files are on several NFS file servers on corporate network. These are dense file systems containing tens of millions of small files. The system operators have configured the file interface on an AWS Snowball Edge device and are using a shell script to copy data. Developers report that copying the data to the Snowball Edge device is very slow. The solutions architect suspects this may be related to the overhead of encrypting all the small files and transporting them over the network. Which changes can be made to speed up the data transfer?
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