Amazon BDS-C00 Exam Questions Instant Access

Question 1

A data engineer is running a DWH on a 25-node Redshift cluster of a SaaS service. The data engineer needs to build a dashboard that will be used by customers. Five big customers represent 80% of usage, and there is a long tail of dozens of smaller customers. The data engineer has selected the dashboarding tool.

How should the data engineer make sure that the larger customer workloads do NOT interfere with the smaller customer workloads?

AApply query filters based on customer-id that can NOT be changed by the user and apply distribution keys on customer id

BPlace the largest customers into a single user group with a dedicated query queue and place the rest of the customer into a different query queue

CPush aggregations into an RDS for Aurora instance. Connect the dashboard application to Aurora rather than Redshift for faster queries

DRoute the largest customers to a dedicated Redshift cluster, Raise the concurrency of the multi-tenant Redshift cluster to accommodate the remaining customers

Answer : B

https://docs.aws.amazon.com/redshift/latest/dg/c_workload_mngmt_classification.html

Question 2

A company operates an international business served from a single AWS region. The company wants to expand into a new country. The regulator for that country requires the Data Architect to maintain a log of financial transactions in the country within 24 hours of production transaction. The production application is latency insensitive. The new country contains another AWS region.

What is the most cost-effective way to meet this requirement?

AUse CloudFormation to replicate the production application to the new region

BUse Amazon CloudFront to serve application content locally in the country; Amazon CloudFront logs will satisfy the requirement

CContinue to serve customers from the existing region while using Amazon Kinesis to stream transaction data to the regulator

DUse Amazon S3 cross-region replication to copy and persist production transaction logs to a budget the new country's region

Answer : D

https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/AccessLogs.html

Question 3

Your customers located around the globe require low-latency access to private video files. Which configuration meets these requirements?

AUse Amazon CloudFront with signed URLs

BUse Amazon EC2 with provisioned IOPS Amazon EBS volumes

CUse Amazon S3 with signed URLs

DUse Amazon S3 with access control lists

Answer : A

Question 4

Is decreasing the storage size of a DB Instance permitted?

ADepends on the RDMS used

BYes

CNo

Answer : B

Question 5

A systems engineer for a company proposes digitalization and backup of large archives for customers. The systems engineer needs to provide users with a secure storage that makes sure that data will never be tempered with once it has been uploaded. How should this be accomplished?

ACreate an Amazon Glacier Vault. Specify a ''Deny'' Vault lock policy on this vault to block
''glacier:DeleteArchive''.

BCreate an Amazon S3 bucker. Specify a ''Deny'' bucket policy on this bucket to block
''s3:DeleteObject''.

CCreate an Amazon Glacier Vault. Specify a ''Deny'' vault access policy on this Vault to block
''glacier:DeleteArchive''.

DCreate a secondary AWS containing an Amazon S3 bucket. Grant ''s3:PutObject'' to the primary account.

Answer : A

A Glacier 'vault access policy' is a resource based policy that you can use to manage permissions to your vault.You can modify permissions in a Vault access policy at any time. A Glacier 'vault lock policy' is vault access policy that can be locked. After you lock a vault lock policy, the policy cannot be changed. You can use a vault lock policy to enforce compliance controls. You can enforce the requirement by implementing the following vault lock policy: 'glacier:DeleteArchieve' action on the vault.

Question 6

Your company wants to start working with AWS, but has not yet opened an account. With which of the following services should you begin local development?

AAmazon DynamoDB

BAmazon Simple Queue Service

CAmazon Simple Email Service

DAmazon CloudSearch

Answer : A

Question 7

You are configuring your company's application to use Auto Scaling and need to move user state information. Which of the following AWS services provides a shared data store with durability and low latency?

AAmazon Simple Storage Service

BAmazon DynamoDB

CAmazon EC2 instance storage

DAWS ElasticCache Memcached

Answer : A

Amazon AWS Certified Big Data - Specialty BDS-C00 Exam Questions