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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Operations and Support | 22% | - Ensure reliability and scalability - Backup, restore, and disaster recovery - Automate operational tasks - Monitor and troubleshoot data pipelines
|
| Topic 2: Data Ingestion and Transformation | 34% | - Implement data quality and validation - Ingest data from various sources
|
| Topic 3: Data Store Management | 26% | - Manage data lifecycle and storage tiers - Optimize storage performance and cost - Design and implement data storage solutions
|
| Topic 4: Data Security and Governance | 18% | - Protect sensitive data - Encrypt data at rest and in transit - Implement access control and authentication
|
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NEW QUESTION # 127
A global finance company needs to implement near real-time cross-Region synchronization of trading data between trading centers in the us-east-1 Region, the eu-west-2 Region, and the ap-northeast-1 Region. The company must ensure that data is encrypted in transit. The solution must ensure data ordering and consistency and must support cross-Region disaster recovery. The solution must provide data latency of less than 500 milliseconds.
Which solution will meet these requirements with the LEAST operational effort?
Answer: A
Explanation:
Option B is correct because Amazon MSK Replicator is the AWS-managed feature specifically designed to reliably replicate data across Amazon MSK clusters in different AWS Regions. AWS states that MSK Replicator can be used to build regionally resilient streaming applications for availability and business continuity, which directly supports the disaster recovery requirement. It is also the choice with the least operational effort because it avoids deploying and managing self-hosted replication tools such as Kafka Connect or MirrorMaker 2. AWS documentation for cross-Region setup also shows support for secure connectivity and notes that MSK environments support IAM, TLS, and SASL/SCRAM authentication schemes for private connectivity scenarios.
Option A and C would require the company to deploy, scale, patch, and monitor custom replication infrastructure in every Region, which increases operational overhead. Option D is not appropriate because Kinesis Data Firehose is not the native service for replicating data between MSK clusters. For ordering and consistency, Kafka-based replication preserves partitioned stream semantics better than mixing in a different streaming service. Therefore, a mesh of MSK Replicator relationships between regional MSK clusters is the best AWS-native answer for near real-time, encrypted, cross-Region replication with minimal administration.
NEW QUESTION # 128
A transportation company wants to track vehicle movements by capturing geolocation records. The records are 10 bytes in size. The company receives up to 10,000 records every second. Data transmission delays of a few minutes are acceptable because of unreliable network conditions.
The transportation company wants to use Amazon Kinesis Data Streams to ingest the geolocation data. The company needs a reliable mechanism to send data to Kinesis Data Streams. The company needs to maximize the throughput efficiency of the Kinesis shards.
Which solution will meet these requirements in the MOST operationally efficient way?
Answer: B
Explanation:
* Problem Analysis:
* The company ingests geolocation records (10 bytes each) at 10,000 records per second into Kinesis Data Streams.
* Data transmission delays are acceptable, but the solution must maximize throughput efficiency.
* Key Considerations:
* TheKinesis Producer Library (KPL)batches records and uses aggregation to optimize shard throughput.
* Efficiently handles high-throughput scenarios with minimal operational overhead.
* Solution Analysis:
* Option A: Kinesis Agent
* Designed for file-based ingestion; not optimized for geolocation records.
* Option B: KPL
* Aggregates records into larger payloads, significantly improving shard throughput.
* Suitable for applications generating small, high-frequency records.
* Option C: Kinesis Firehose
* Firehose is for delivery to destinations like S3 or Redshift and is not optimized for direct ingestion to Kinesis Data Streams.
* Option D: Kinesis SDK
* The SDK lacks advanced features like aggregation, resulting in lower throughput efficiency.
* Final Recommendation:
* UseKinesis Producer Library (KPL)for its built-in aggregation and batching capabilities.
:
Kinesis Producer Library (KPL) Overview
Best Practices for Amazon Kinesis
NEW QUESTION # 129
A data engineer is building a data pipeline on AWS by using AWS Glue extract, transform, and load (ETL) jobs. The data engineer needs to process data from Amazon RDS and MongoDB, perform transformations, and load the transformed data into Amazon Redshift for analytics. The data updates must occur every hour.
Which combination of tasks will meet these requirements with the LEAST operational overhead? (Choose two.)
Answer: A,E
Explanation:
The correct answer is to configure AWS Glue triggers to run the ETL jobs every hour and use AWS Glue connections to establish connectivity between the data sources and Amazon Redshift. AWS Glue triggers are a way to schedule and orchestrate ETL jobs with the least operational overhead. AWS Glue connections are a way to securely connect to data sources and targets using JDBC or MongoDB drivers. AWS Glue DataBrew is a visual data preparation tool that does not support MongoDB as a data source. AWS Lambda functions are a serverless option to schedule and run ETL jobs, but they have a limit of 15 minutes for execution time, which may not be enough for complex transformations. The Redshift Data API is a way to run SQL commands on Amazon Redshift clusters without needing a persistent connection, but it does not support loading data from AWS Glue ETL jobs. Reference:
AWS Glue triggers
AWS Glue connections
AWS Glue DataBrew
[AWS Lambda functions]
[Redshift Data API]
NEW QUESTION # 130
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?
Answer: A
Explanation:
The Amazon Redshift Data API enables you to interact with your Amazon Redshift data warehouse in an easy and secure way. You can use the Data API to run SQL commands, such as loading data into tables, without requiring a persistent connection to the cluster. The Data API also integrates with Amazon EventBridge, which allows you to monitor the execution status of your SQL commands and trigger actions based on events. By using the Data API to publish an event to EventBridge, the data engineer can invoke the Lambda function that writes the load statuses to the DynamoDB table. This solution is scalable, reliable, and cost-effective. The other options are either not possible or not optimal. You cannot use a second Lambda function to invoke the first Lambda function based on CloudWatch or CloudTrail events, as these services do not capture the load status of Redshift tables. You can use the Data API to publish a message to an SQS queue, but this would require additional configuration and polling logic to invoke the Lambda function from the queue. This would also introduce additional latency and cost. Reference:
Using the Amazon Redshift Data API
Using Amazon EventBridge with Amazon Redshift
AWS Certified Data Engineer - Associate DEA-C01 Complete Study Guide, Chapter 2: Data Store Management, Section 2.2: Amazon Redshift
NEW QUESTION # 131
A company stores sensitive data in an Amazon Redshift table. The company needs to give specific users the ability to access the sensitive data. The company must not create duplication in the data. Customer support users must be able to see the last four characters of the sensitive data. Audit users must be able to see the full value of the sensitive data. No other users can have the ability to access the sensitive information.
Which solution will meet these requirements?
Answer: B
Explanation:
Option A is correct because Amazon Redshift dynamic data masking is designed to hide, obfuscate, or partially reveal sensitive values at query time without duplicating the underlying data. AWS states that masking policies can be attached to one or more columns and can be applied differently to certain users or roles. AWS also provides examples where different roles see different versions of the same column value, which matches the requirement that customer support users see only the last four characters while audit users can see the full value.
Option B is incorrect because metadata security controls metadata visibility, not column-value masking.
Option C is incorrect because row-level security filters which rows are visible; it does not selectively mask part of a column value. Option D would create a second table and therefore duplicates data, which the question forbids. Dynamic data masking is the AWS-native feature that satisfies role-based partial exposure of a single sensitive column with no data duplication.
NEW QUESTION # 132
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