Amazon BDS-C00 Online Practice Questions and Exam Preparation

Amazon BDS-C00 Online Questions & Answers

• Question 161:

  A customer wants to track access to their Amazon Simple Storage Service (S3) buckets and also use this information for their internal security and access audits. Which of the following will meet the Customer requirement?

  A. Enable AWS CloudTrail to audit all Amazon S3 bucket access.
  B. Enable server access logging for all required Amazon S3 buckets.
  C. Enable the Requester Pays option to track access via AWS Billing
  D. Enable Amazon S3 event notifications for Put and Post.
  B. Enable server access logging for all required Amazon S3 buckets.

• Question 162:

  As part of your continuous deployment process, your application undergoes an I/O load performance test before it is deployed to production using new AMIs. The application uses one Amazon Elastic Block Store (EBS) PIOPS volume per instance and requires consistent I/O performance.

  Which of the following must be carried out to ensure that I/O load performance tests yield the correct results in a repeatable manner?

  A. Ensure that the I/O block sizes for the test are randomly selected
  B. Ensure that the Amazon EBS volumes have been pre-warmed by reading all the blocks before the test
  C. Ensure that snapshots of the Amazon EBS volumes are created as a backup
  D. Ensure that the Amazon EBS volume is encrypted
  E. Ensure that the Amazon EBS volume has been pre-warmed by creating a snapshot of the volume before the test
  B. Ensure that the Amazon EBS volumes have been pre-warmed by reading all the blocks before the test

• Question 163:

  A data engineer is about to perform a major upgrade to the DDL contained within an Amazon Redshift cluster to support a new data warehouse application. The upgrade scripts will include user permission updates, view and table structure

  changes as well as additional loading and data manipulation tasks.

  The data engineer must be able to restore the database to its existing state in the event of issues.

  Which action should be taken prior to performing this upgrade task?

  A. Run an UNLOAD command for all data in the warehouse and save it to S3.
  B. Create a manual snapshot of the Amazon Redshift cluster.
  C. Make a copy of the automated snapshot on the Amazon Redshift cluster.
  D. Call the waitForSnapshotAvailable command from either the AWS CLI or an AWS SDK.
  B. Create a manual snapshot of the Amazon Redshift cluster.

• Question 164:

  A customer has a machine learning workflow that consists of multiple quick cycles of reads-writes-reads on Amazon S3. The customer needs to run the workflow on EMR but is concerned that the reads in subsequent cycles will miss new data critical to the machine learning from the prior cycles.

  How should the customer accomplish this?

  A. Turn on EMRFS consistent view when configuring the EMR cluster.
  B. Use AWS Data Pipeline to orchestrate the data processing cycles.
  C. Set hadoop.data.consistency = true in the core-site.xml file.
  D. Set hadoop.s3.consistency = true in the core-site.xml file.
  A. Turn on EMRFS consistent view when configuring the EMR cluster.

• Question 165:

  An AWS customer is deploying a web application that is composed of a front-end running on Amazon EC2 and of confidential data that is stored on Amazon S3. The customer security policy that all access operations to this sensitive data must be authenticated and authorized by a centralized access management system that is operated by a separate security team. In addition, the web application team that owns and administers the EC2 web front-end instances is prohibited from having any ability to access the data that circumvents this centralized access management system. Which of the following configurations will support these requirements?

  A. Encrypt the data on Amazon S3 using a CloudHSM that is operated by the separate security team. Configure the web application to integrate with the CloudHSM for decrypting approved data access operations for trusted end-users.
  B. Configure the web application to authenticate end-users against the centralized access management system. Have the web application provision trusted users STS tokens entitling the download of approved data directly from Amazon S3
  C. Have the separate security team create and IAM role that is entitled to access the data on Amazon S3. Have the web application team provision their instances with this role while denying their IAM users access to the data on Amazon S3
  D. Configure the web application to authenticate end-users against the centralized access management system using SAML. Have the end-users authenticate to IAM using their SAML token and download the approved data directly from S3.
  B. Configure the web application to authenticate end-users against the centralized access management system. Have the web application provision trusted users STS tokens entitling the download of approved data directly from Amazon S3

• Question 166:

  A user has setup an RDS DB with Oracle. The user wants to get notifications when someone modifies the security group of that DB. How can the user configure that?

  A. It is not possible to get the notifications on a change in the security group
  B. Configure SNS to monitor security group changes
  C. Configure event notification on the DB security group
  D. Configure the CloudWatch alarm on the DB for a change in the security group
  C. Configure event notification on the DB security group

• Question 167:

  An advertising organization uses an application to process a stream of events that are received from clients in multiple unstructured formats.

  The application does the following:

  Transforms the events into a single structured format and streams them to Amazon Kinesis for real-time analysis.

  Stores the unstructured raw events from the log files on local hard drivers that are rotated and uploaded to Amazon S3.

  The organization wants to extract campaign performance reporting using an existing Amazon redshift cluster.

  Which solution will provide the performance data with the LEAST number of operations?

  A. Install the Amazon Kinesis Data Firehose agent on the application servers and use it to stream the log files directly to Amazon Redshift.
  B. Create an external table in Amazon Redshift and point it to the S3 bucket where the unstructured raw events are stored.
  C. Write an AWS Lambda function that triggers every hour to load the new log files already in S3 to Amazon redshift.
  D. Connect Amazon Kinesis Data Firehose to the existing Amazon Kinesis stream and use it to stream the event directly to Amazon Redshift.
  B. Create an external table in Amazon Redshift and point it to the S3 bucket where the unstructured raw events are stored.

• Question 168:

  What does Amazon RDS stand for?

  A. Regional Data Server.
  B. Relational Database Service.
  C. Nothing.
  D. Regional Database Service.
  B. Relational Database Service.

• Question 169:

  A game company needs to properly scale its game application, which is backed by DynamoDB. Amazon Redshift has the past two years of historical data. Game traffic varies throughout the year based on various factors such as season, movie release, and holiday season. An administrator needs to calculate how much read and write throughput should be provisioned for DynamoDB table for each week in advance.

  How should the administrator accomplish this task?

  A. Feed the data into Amazon Machine Learning and build a regression model.
  B. Feed the data into Spark Mlib and build a random forest modest.
  C. Feed the data into Apache Mahout and build a multi-classification model.
  D. Feed the data into Amazon Machine Learning and build a binary classification model.
  B. Feed the data into Spark Mlib and build a random forest modest.

• Question 170:

  What is an isolated database environment running in the cloud (Amazon RDS) called?

  A. DB Instance
  B. DB Unit
  C. DB Server
  D. DB Volume
  A. DB Instance