Amazon BDS-C00 Online Practice Questions and Exam Preparation

Amazon BDS-C00 Online Questions & Answers

• Question 201:

  It is advised that you watch the Amazon CloudWatch "_____" metric (available via the AWS Management Console or Amazon Cloud Watch APIs) carefully and recreate the Read Replica should it fall behind due to replication errors.

  A. Write Lag
  B. Read Replica
  C. Replica Lag
  D. Single Replica
  C. Replica Lag

• Question 202:

  An organization's data warehouse contains sales data for reporting purposes. data governance policies prohibit staff from accessing the customers' credit card numbers. How can these policies be adhered to and still allow a Data Scientist to group transactions that use the same credit card number?

  A. Store a cryptographic hash of the credit card number.
  B. Encrypt the credit card number with a symmetric encryption key, and give the key only to the authorized Data Scientist.
  C. Mask the credit card numbers to only show the last four digits of the credit card number.
  D. Encrypt the credit card number with an asymmetric encryption key and give the decryption key only to the authorized Data Scientist.
  C. Mask the credit card numbers to only show the last four digits of the credit card number.

• Question 203:

  Can the string value of 'Key' be prefixed with laws?

  A. No
  B. Only for EC2 not S3
  C. Yes
  D. Only for S3 not EC
  A. No

• Question 204:

  A company generates a large number of files each month and needs to use AWS import/export to move these files into Amazon S3 storage. To satisfy the auditors, the company needs to keep a record of which files were imported into Amazon S3.

  What is a low-cost way to create a unique log for each import job?

  A. Use the same log file prefix in the import/export manifest files to create a versioned log file in Amazon S3 for all imports.
  B. Use the log file prefix in the import/export manifest files to create a unique log file in Amazon S3 for each import.
  C. Use the log file checksum in the import/export manifest files to create a unique log file in Amazon S3 for each import.
  D. Use a script to iterate over files in Amazon S3 to generate a log after each import/export job.
  B. Use the log file prefix in the import/export manifest files to create a unique log file in Amazon S3 for each import.

• Question 205:

  A gas company needs to monitor gas pressure in their pipelines. Pressure data is streamed from sensors placed throughout the pipelines to monitor the data in real time. When an anomaly is detected, the system must send a notification to open valve. An Amazon Kinesis stream collects the data from the sensors and an anomaly Kinesis stream triggers an AWS Lambda function to open the appropriate valve.

  Which solution is the MOST cost-effective for responding to anomalies in real time?

  A. Attach a Kinesis Firehose to the stream and persist the sensor data in an Amazon S3 bucket. Schedule an AWS Lambda function to run a query in Amazon Athena against the data in Amazon S3 to identify anomalies. When a change is detected, the Lambda function sends a message to the anomaly stream to open the valve.
  B. Launch an Amazon EMR cluster that uses Spark Streaming to connect to the Kinesis stream and Spark machine learning to detect anomalies. When a change is detected, the Spark application sends a message to the anomaly stream to open the valve.
  C. Launch a fleet of Amazon EC2 instances with a Kinesis Client Library application that consumes the stream and aggregates sensor data over time to identify anomalies. When an anomaly is detected, the application sends a message to the anomaly stream to open the valve.
  D. Create a Kinesis Analytics application by using the RANDOM_CUT_FOREST function to detect an anomaly. When the anomaly score that is returned from the function is outside of an acceptable range, a message is sent to the anomaly stream to open the valve.
  A. Attach a Kinesis Firehose to the stream and persist the sensor data in an Amazon S3 bucket. Schedule an AWS Lambda function to run a query in Amazon Athena against the data in Amazon S3 to identify anomalies. When a change is detected, the Lambda function sends a message to the anomaly stream to open the valve.

• Question 206:

  An organization would like to run analytics on their Elastic Load Balancing logs stored in Amazon S3 and join this data with other tables in Amazon S3. The users are currently using a BI tool connecting with JDBC and would like to keep using this BI tool.

  Which solution would result in the LEAST operational overhead?

  A. Trigger a Lambda function when a new log file is added to the bucket to transform and load it into Amazon Redshift. Run the VACUUM command on the Amazon Redshift cluster every night.
  B. Launch a long-running Amazon EMR cluster that continuously downloads and transforms new files from Amazon S3 into its HDFS storage. Use Presto to expose the data through JDBC.
  C. Trigger a Lambda function when a new log file is added to the bucket to transform and move it to another bucket with an optimized data structure. Use Amazon Athena to query the optimized bucket.
  D. Launch a transient Amazon EMR cluster every night that transforms new log files and loads them into Amazon Redshift.
  C. Trigger a Lambda function when a new log file is added to the bucket to transform and move it to another bucket with an optimized data structure. Use Amazon Athena to query the optimized bucket.

• Question 207:

  Amazon S3 doesn't automatically give a user who creates _____ permission to perform other actions on that bucket or object.

  A. a file
  B. a bucket or object
  C. a bucket or file
  D. a object or file
  B. a bucket or object

• Question 208:

  An Operations team continuously monitors the number of visitors to a website to identify any potential system problems. The number of website visitors varies throughout the day. The site is more popular in the middle of the day and less popular at night.

  Which type of dashboard display would be the MOST useful to allow staff to quickly and correctly identify system problems?

  A. A vertical stacked bar chart showing today's website visitors and the historical average number of website visitors.
  B. An overlay line chart showing today's website visitors at one-minute intervals and also the historical average number of website visitors.
  C. A single KPI metric showing the statistical variance between the current number of website visitors and the historical number of website visitors for the current time of day.
  D. A scatter plot showing today's website visitors on the X-axis and the historical average number of website visitors on the Y-axis.
  B. An overlay line chart showing today's website visitors at one-minute intervals and also the historical average number of website visitors.

• Question 209:

  What is the maximum response time for a Business level Premium Support case?

  A. 30 minutes
  B. 1 hour
  C. 12 hours
  D. 10 minutes
  B. 1 hour

• Question 210:

  A company needs to monitor the read and write IOPs metrics for their AWS MySQL RDS instances and send real-time alerts to their operations team. Which AWS services can accomplish this? Choose 2 answers

  A. Amazon Simple Email Service
  B. Amazon CloudWatch
  C. Amazon Simple Queue Service
  D. Amazon Route 53
  E. Amazon Simple Notification Service
  B. Amazon CloudWatch
  E. Amazon Simple Notification Service