DEA-C01の無料問題集（132題）、DEA-C01認定試験参考書

Snowflake DEA-C01 問題集

試験コード：DEA-C01

試験名称：SnowPro Advanced: Data Engineer Certification Exam

最近更新時間：2025-04-02

問題と解答：全132問

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無料問題集DEA-C01 資格取得

質問 1：
A data engineer needs to use an Amazon QuickSight dashboard that is based on Amazon Athena queries on data that is stored in an Amazon S3 bucket. When the data engineer connects to the QuickSight dashboard, the data engineer receives an error message that indicates insufficient permissions.
Which factors could cause to the permissions-related errors? (Choose two.)
A. There is no connection between QuickSight and Athena.
B. QuickSight does not have access to decrypt S3 data.
C. There is no IAM role assigned to QuickSight.
D. QuickSight does not have access to the S3 bucket.
E. The Athena tables are not cataloged.
正解：B,D

質問 2：
A healthcare company uses Amazon Kinesis Data Streams to stream real-time health data from wearable devices, hospital equipment, and patient records.
A data engineer needs to find a solution to process the streaming data. The data engineer needs to store the data in an Amazon Redshift Serverless warehouse. The solution must support near real-time analytics of the streaming data and the previous day's data.
Which solution will meet these requirements with the LEAST operational overhead?
A. Load data into Amazon Kinesis Data Firehose. Load the data into Amazon Redshift.
B. Use the streaming ingestion feature of Amazon Redshift.
C. Use the Amazon Aurora zero-ETL integration with Amazon Redshift.
D. Load the data into Amazon S3. Use the COPY command to load the data into Amazon Redshift.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 3：
A company is building an analytics solution. The solution uses Amazon S3 for data lake storage and Amazon Redshift for a data warehouse. The company wants to use Amazon Redshift Spectrum to query the data that is in Amazon S3.
Which actions will provide the FASTEST queries? (Choose two.)
A. Use file formats that are not splittable.
B. Split the data into files that are less than 10 KB.
C. Partition the data based on the most common query predicates.
D. Use a columnar storage file format.
E. Use gzip compression to compress individual files to sizes that are between 1 GB and 5 GB.
正解：C,D

質問 4：
A company loads transaction data for each day into Amazon Redshift tables at the end of each day. The company wants to have the ability to track which tables have been loaded and which tables still need to be loaded.
A data engineer wants to store the load statuses of Redshift tables in an Amazon DynamoDB table. The data engineer creates an AWS Lambda function to publish the details of the load statuses to DynamoDB.
How should the data engineer invoke the Lambda function to write load statuses to the DynamoDB table?
A. Use a second Lambda function to invoke the first Lambda function based on AWS CloudTrail events.
B. Use the Amazon Redshift Data API to publish an event to Amazon EventBridge. Configure an EventBridge rule to invoke the Lambda function.
C. Use the Amazon Redshift Data API to publish a message to an Amazon Simple Queue Service (Amazon SQS) queue. Configure the SQS queue to invoke the Lambda function.
D. Use a second Lambda function to invoke the first Lambda function based on Amazon CloudWatch events.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 5：
A company uses Amazon RDS to store transactional data. The company runs an RDS DB instance in a private subnet. A developer wrote an AWS Lambda function with default settings to insert, update, or delete data in the DB instance.
The developer needs to give the Lambda function the ability to connect to the DB instance privately without using the public internet.
Which combination of steps will meet this requirement with the LEAST operational overhead?
(Choose two.)
A. Update the security group of the DB instance to allow only Lambda function invocations on the database port.
B. Turn on the public access setting for the DB instance.
C. Update the network ACL of the private subnet to include a self-referencing rule that allows access through the database port.
D. Configure the Lambda function to run in the same subnet that the DB instance uses.
E. Attach the same security group to the Lambda function and the DB instance. Include a self- referencing rule that allows access through the database port.
正解：A,D

質問 6：
An online retail company stores Application Load Balancer (ALB) access logs in an Amazon S3 bucket. The company wants to use Amazon Athena to query the logs to analyze traffic patterns.
A data engineer creates an unpartitioned table in Athena. As the amount of the data gradually increases, the response time for queries also increases. The data engineer wants to improve the query performance in Athena.
Which solution will meet these requirements with the LEAST operational effort?
A. Create an AWS Glue job that determines the schema of all ALB access logs and writes the partition metadata to AWS Glue Data Catalog.
B. Create an AWS Lambda function to transform all ALB access logs. Save the results to Amazon S3 in Apache Parquet format. Partition the metadata. Use Athena to query the transformed data.
C. Use Apache Hive to create bucketed tables. Use an AWS Lambda function to transform all ALB access logs.
D. Create an AWS Glue crawler that includes a classifier that determines the schema of all ALB access logs and writes the partition metadata to AWS Glue Data Catalog.
正解：D
解説: (Topexam メンバーにのみ表示されます)

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Snowflake DEA-C01 認定試験の出題範囲：

トピック	出題範囲
トピック 1	Data Transformation: The SnowPro Advanced: Data Engineer exam evaluates skills in using User-Defined Functions (UDFs), external functions, and stored procedures. It assesses the ability to handle semi-structured data and utilize Snowpark for transformations. This section ensures Snowflake engineers can effectively transform data within Snowflake environments, critical for data manipulation tasks.
トピック 2	Performance Optimization: This topic assesses the ability to optimize and troubleshoot underperforming queries in Snowflake. Candidates must demonstrate knowledge in configuring optimal solutions, utilizing caching, and monitoring data pipelines. It focuses on ensuring engineers can enhance performance based on specific scenarios, crucial for Snowflake Data Engineers and Software Engineers.
トピック 3	Data Movement: Snowflake Data Engineers and Software Engineers are assessed on their proficiency to load, ingest, and troubleshoot data in Snowflake. It evaluates skills in building continuous data pipelines, configuring connectors, and designing data sharing solutions.
トピック 4	Security: The Security topic of the DEA-C01 test covers the principles of Snowflake security, including the management of system roles and data governance. It measures the ability to secure data and ensure compliance with policies, crucial for maintaining secure data environments for Snowflake Data Engineers and Software Engineers.

参照：https://learn.snowflake.com/en/certifications/snowpro-advanced-dataengineer/

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