Amazon SAP-C01 Practice Test - Questions Answers, Page 64
List of questions
Question 631
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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?
Question 632
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A group of Amazon EC2 instances have been configured as a high performance computing (HPC) cluster. The instances are running in a placement group, and are able to communicate with each other at network speeds of up to 20 Gbps. The cluster needs to communicate with a control EC2 instance outside of the placement group. The control instance has the same instance type and AMI as the other instances, and is configured with a public IP address. How can the Solutions Architect improve the network speeds between the control instance and the instances in the placement group?
Explanation:
Reference: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html
Question 633
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True or False: In Amazon ElastiCache, you can use Cache Security Groups to configure the cache clusters that are part of a VPC.
Explanation:
Amazon ElastiCache cache security groups are only applicable to cache clusters that are not running in an Amazon Virtual Private Cloud environment (VPC). If you are running in an Amazon Virtual Private Cloud, Cache Security Groups is not available in the console navigation pane.
Reference: http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheSecurityGroup.html
Question 634
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An online retail company hosts its stateful web-based application and MySQL database in an on-premises data center on a single server. The company wants to increase its customer base by conducting more marketing campaigns and promotions.
In preparation, the company wants to migrate its application and database to AWS to increase the reliability of its architecture. Which solution should provide the HIGHEST level of reliability?
Explanation:
Reference: https://docs.aws.amazon.com/documentdb/latest/developerguide/docdb-migration.html
Question 635
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You are designing a multi-platform web application for AWS The application will run on EC2 instances and will be accessed from PCs. Tablets and smart phones Supported accessing platforms are Windows, MacOS, IOS and Android Separate sticky session and SSL certificate setups are required for different platform types.
Which of the following describes the most cost effective and performance efficient architecture setup?
Explanation:
One ELB cannot handle different SSL certificates but since we are using sticky sessions it must be handled at the ELB level. SSL could be handled on the EC2 instances only with TCP configured ELB, ELB supports sticky sessions only in HTTP/HTTPS configurations. The way the Elastic Load Balancer does session stickiness is on a HTTP/HTTPS listener is by utilizing an HTTP cookie. IfSSL traffic is not terminated on the Elastic Load Balancer and is terminated on the back-end instance, the Elastic LoadBalancer has no visibility into the HTTP headers and therefore can not set or read any of the HTTP headers being passedback and forth. Reference:http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/elb-sticky- sessions.html
Question 636
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IAM users do not have permission to create Temporary Security Credentials for federated users and roles by default. In contrast, IAM users can call __________ without the need of any special permissions
Explanation:
Currently the STS API command GetSessionToken is available to every IAM user in your account without previous permission. In contrast, the GetFederationToken command is restricted and explicit permissions need to be granted so a user can issue calls to this particular Action.
Reference: http://docs.aws.amazon.com/STS/latest/UsingSTS/STSPermission.html
Question 637
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A company hosts an application on Amazon EC2 instance and needs to store files in Amazon S3. The files should never traverse the public internet, and only the application EC2 instances are granted access to a specific Amazon S3 bucket. A solutions architect has created a VPC endpoint for Amazon S3 and connected the endpoint to the application VPC. Which additional steps should the solutions architect take to meet these requirements?
Question 638
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Your supervisor has given you the task of creating an elastic network interface on each of your web servers that connect to a mid-tier network where an application server resides. He also wants this set up as a Dual-homed Instance on Distinct Subnets. Instead of routing network packets through the dual-homed instances, where should each dual-homed instance receive and process requests to fulfil his criteria?
Explanation:
You can place an elastic network interface on each of your web servers that connects to a mid- tier network where an application server resides. The application server can also be dual-homed to a backend network (subnet) where the database server resides. If it is set up like this, instead of routing network packets through the dual-homed instances, each dual-homed instance receives and processes requests on the front end and initiates a connection to the back end before finally sending requests to the servers on the back-end network.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.html
Question 639
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A company is configuring connectivity to a multi-account AWS environment to support application workloads that serve users in a single geographic region. The workloads depend on a highly available, onpremises legacy system deployed across two locations. It is critical for the AWS workloads to maintain connectivity to the legacy system, and a minimum of 5 Gbps of bandwidth is required. All application workloads within AWS must have connectivity with one another. Which solution will meet these requirements?
Question 640
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The Statement element, of an AWS IAM policy, contains an array of individual statements. Each individual statement is a(n) _________ block enclosed in braces { }.
Explanation:
The Statement element, of an IAM policy, contains an array of individual statements. Each individual statement is a JSON block enclosed in braces { }.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccessPolicyLanguage_ElementDescriptions.html
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