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Amazon AWS Certified Data Analytics - Specialty (DAS-C01) Exam Sample Questions (Q34-Q39):

NEW QUESTION # 34
An online retail company uses Amazon Redshift to store historical sales transactions. The company is required to encrypt data at rest in the clusters to comply with the Payment Card Industry Data Security Standard (PCI DSS). A corporate governance policy mandates management of encryption keys using an on-premises hardware security module (HSM).
Which solution meets these requirements?

  • A. Create a replica of the on-premises HSM in AWS CloudHSM. Launch a cluster in a VPC with the option to use CloudHSM to store keys.
  • B. Create and manage encryption keys using AWS CloudHSM Classic. Launch an Amazon Redshift cluster in a VPC with the option to use CloudHSM Classic for key management.
  • C. Create a VPC and establish a VPN connection between the VPC and the on-premises network. Create an HSM connection and client certificate for the on-premises HSM. Launch a cluster in the VPC with the option to use the on-premises HSM to store keys.
  • D. Create an HSM connection and client certificate for the on-premises HSM. Enable HSM encryption on the existing unencrypted cluster by modifying the cluster. Connect to the VPC where the Amazon Redshift cluster resides from the on-premises network using a VPN.

Answer: C


NEW QUESTION # 35
A retail company is building its data warehouse solution using Amazon Redshift. As a part of that effort, the company is loading hundreds of files into the fact table created in its Amazon Redshift cluster. The company wants the solution to achieve the highest throughput and optimally use cluster resources when loading data into the company's fact table.
How should the company meet these requirements?

  • A. Use multiple COPY commands to load the data into the Amazon Redshift cluster.
  • B. Use S3DistCp to load multiple files into the Hadoop Distributed File System (HDFS) and use an HDFS connector to ingest the data into the Amazon Redshift cluster.
  • C. Use a single COPY command to load the data into the Amazon Redshift cluster.
  • D. Use LOAD commands equal to the number of Amazon Redshift cluster nodes and load the data in parallel into each node.

Answer: C

Explanation:
https://docs.aws.amazon.com/redshift/latest/dg/c_best-practices-single-copy-command.html


NEW QUESTION # 36
An operations team notices that a few AWS Glue jobs for a given ETL application are failing. The AWS Glue jobs read a large number of small JSON files from an Amazon S3 bucket and write the data to a different S3 bucket in Apache Parquet format with no major transformations. Upon initial investigation, a data engineer notices the following error message in the History tab on the AWS Glue console: "Command Failed with Exit Code 1." Upon further investigation, the data engineer notices that the driver memory profile of the failed jobs crosses the safe threshold of 50% usage quickly and reaches 90-95% soon after. The average memory usage across all executors continues to be less than 4%.
The data engineer also notices the following error while examining the related Amazon CloudWatch Logs.
What should the data engineer do to solve the failure in the MOST cost-effective way?

  • A. Modify the AWS Glue ETL code to use the 'groupFiles': 'inPartition' feature.
  • B. Modify maximum capacity to increase the total maximum data processing units (DPUs) used.
  • C. Change the worker type from Standard to G.2X.
  • D. Increase the fetch size setting by using AWS Glue dynamics frame.

Answer: A

Explanation:
https://docs.aws.amazon.com/glue/latest/dg/monitor-profile-debug-oom-abnormalities.html#monitor-debug-oom-fix


NEW QUESTION # 37
A data analyst is designing a solution to interactively query datasets with SQL using a JDBC connection. Users will join data stored in Amazon S3 in Apache ORC format with data stored in Amazon Elasticsearch Service (Amazon ES) and Amazon Aurora MySQL.
Which solution will provide the MOST up-to-date results?

  • A. Query all the datasets in place with Apache Spark SQL running on an AWS Glue developer endpoint.
  • B. Use Amazon DMS to stream data from Amazon ES and Aurora MySQL to Amazon Redshift. Query the data with Amazon Redshift.
  • C. Query all the datasets in place with Apache Presto running on Amazon EMR.
  • D. Use AWS Glue jobs to ETL data from Amazon ES and Aurora MySQL to Amazon S3. Query the data with Amazon Athena.

Answer: A


NEW QUESTION # 38
A company owns facilities with IoT devices installed across the world. The company is using Amazon Kinesis Data Streams to stream data from the devices to Amazon S3. The company's operations team wants to get insights from the IoT data to monitor data quality at ingestion. The insights need to be derived in near-real time, and the output must be logged to Amazon DynamoDB for further analysis.
Which solution meets these requirements?

  • A. Connect Amazon Kinesis Data Analytics to analyze the stream data. Save the output to DynamoDB by using an AWS Lambda function.
  • B. Connect Amazon Kinesis Data Firehose to analyze the stream data by using an AWS Lambda function.
    Save the data to Amazon S3. Then run an AWS Glue job on schedule to ingest the data into DynamoDB.
  • C. Connect Amazon Kinesis Data Analytics to analyze the stream data. Save the output to DynamoDB by using the default output from Kinesis Data Analytics.
  • D. Connect Amazon Kinesis Data Firehose to analyze the stream data by using an AWS Lambda function.
    Save the output to DynamoDB by using the default output from Kinesis Data Firehose.

Answer: D


NEW QUESTION # 39
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