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A gaming company is developing a new mobile game and decides to store the data for each user in Amazon DynamoDB. To make the registration process as easy as possible, users can log in with their existing Facebook or Amazon accounts. The company expects more than 10,000 users.

How should a database specialist implement access control with the LEAST operational effort?

AUse web identity federation on the mobile app and AWS STS with an attached IAM role to get temporary credentials to access DynamoDB.

BUse web identity federation on the mobile app and create individual IAM users with credentials to access DynamoDB.

CUse a self-developed user management system on the mobile app that lets users access the data from DynamoDB through an API.

DUse a single IAM user on the mobile app to access DynamoDB.

Question 2

A Database Specialist is constructing a new Amazon Neptune DB cluster and tries to load data from Amazon S3 using the Neptune bulk loader API. The Database Specialist is confronted with the following error message:

Unable to establish a connection to the s3 endpoint. The source URL is s3:/mybucket/graphdata/ and the region code is us-east-1. Kindly confirm your Configuration S3.

Which of the following activities should the Database Specialist take to resolve the issue? (Select two.)

ACheck that Amazon S3 has an IAM role granting read access to Neptune

BCheck that an Amazon S3 VPC endpoint exists

CCheck that a Neptune VPC endpoint exists

DCheck that Amazon EC2 has an IAM role granting read access to Amazon S3

ECheck that Neptune has an IAM role granting read access to Amazon S3

Question 3

A company is hosting critical business data in an Amazon Redshift cluster. Due to the sensitive nature of the data, the cluster is encrypted at rest using AWS KMS. As a part of disaster recovery requirements, the company needs to copy the Amazon Redshift snapshots to another Region.

Which steps should be taken in the AWS Management Console to meet the disaster recovery requirements?

ACreate a new KMS customer master key in the source Region. Switch to the destination Region, enable Amazon Redshift cross-Region snapshots, and use the KMS key of the source Region.

BCreate a new IAM role with access to the KMS key. Enable Amazon Redshift cross-Region replication using the new IAM role, and use the KMS key of the source Region.

CEnable Amazon Redshift cross-Region snapshots in the source Region, and create a snapshot copy grant and use a KMS key in the destination Region.

DCreate a new KMS customer master key in the destination Region and create a new IAM role with access to the new KMS key. Enable Amazon Redshift cross-Region replication in the source Region and use the KMS key of the destination Region.

Question 4

A company is deploying a solution in Amazon Aurora by migrating from an on-premises system. The IT department has established an AWS Direct Connect link from the company's data center. The company's Database Specialist has selected the option to require SSL/TLS for connectivity to prevent plaintext data from being set over the network. The migration appears to be working successfully, and the data can be queried from a desktop machine.

Two Data Analysts have been asked to query and validate the data in the new Aurora DB cluster. Both Analysts are unable to connect to Auror

a. Their user names and passwords have been verified as valid and the Database Specialist can connect to the DB cluster using their accounts. The Database Specialist also verified that the security group configuration allows network from all corporate IP addresses.

What should the Database Specialist do to correct the Data Analysts' inability to connect?

ARestart the DB cluster to apply the SSL change.

BInstruct the Data Analysts to download the root certificate and use the SSL certificate on the connection string to connect.

CAdd explicit mappings between the Data Analysts' IP addresses and the instance in the security group assigned to the DB cluster.

DModify the Data Analysts' local client firewall to allow network traffic to AWS.

Question 5

A company wants to build a new invoicing service for its cloud-native application on AWS. The company has a small development team and wants to focus on service feature development and minimize operations and maintenance as much as possible. The company expects the service to handle billions of requests and millions of new records every day. The service feature requirements, including data access patterns are well-defined. The service has an availability target of

99.99% with a milliseconds latency requirement. The database for the service will be the system of record for invoicing data.

Which database solution meets these requirements at the LOWEST cost?

AAmazon Neptune

BAmazon Aurora PostgreSQL Serverless

CAmazon RDS for PostgreSQL

DAmazon DynamoDB

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