Amazon AWS Certified Data Engineer - Associate DEA-C01 DEA-C01 Dumps in PDF

Valid to test it

Question 142:
Correct answer: A — Determining the root cause of the incident
The post-incident review—also called a lessons-learned review—analyzes what happened and why. Determining the root cause helps the organization fix the underlying weakness and prevent recurrence.
Why the other options are less suitable:

• B: Developing steps to mitigate risks — May result from the review, but mitigation planning is generally part of remediation and corrective action.
• C: Validating evidence accuracy — Occurs during the investigation, before the post-incident review.
• D: Reestablishing system configuration — This is part of recovery and restoration.

1. Investigate and validate evidence.
2. Contain and eradicate the threat.
3. Recover systems.
4. Conduct a post-incident review, including root-cause analysis.

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Question 26:
Correct answer: C — No, it is the top management’s responsibility to allocate the resources needed for the BCMS.
The answer key shows A, but this appears incorrect.
Under ISO 22301:

• Top management must demonstrate leadership and commitment to the BCMS.
• Top management must determine and provide the resources needed to establish, implement, maintain, and continually improve the BCMS.
• A project manager such as Rebecca may coordinate or distribute resources as part of implementation, but she does not hold the organization’s ultimate responsibility for ensuring those resources are available.

Question 1:
Correct answer: A
The Lambda function should:

1. Write a structured log entry to CloudWatch Logs containing:

1. Configure a CloudWatch Logs metric filter to match those log entries and publish a metric.

1. Use response code and application version as metric dimensions. This lets the company view metrics separately for each application version and response code, such as:

• B: CloudWatch Logs Insights is for querying and analyzing logs; it does not directly populate CloudWatch metrics this way.
• C: ALB access logs do not automatically contain custom Lambda response metadata in the required form.
• D: X-Ray Insights is intended for tracing and anomaly analysis, not extracting arbitrary business metrics with these dimensions.

Question 2:
Question 2 is about tasks that Microsoft 365 Copilot can perform in Word.

• C. Generate a summary of the key points in your document — Correct.

• D. Insert a custom watermark with specific text and formatting — Questionable.

• A. Insert a table of contents — Not a strong Copilot choice.

• B. Customize page margins — Not a Copilot-specific task.

question 99 solution is wrong, the correct answer is A (Yes) event the explanation conflict with the solution

Question 2:
Correct answer: C — Use Amazon Athena directly with Amazon S3.
Athena is a serverless, interactive query service that runs SQL directly against data stored in Amazon S3. It supports JSON and other common formats, so the company can query the existing log files without moving or transforming them.
Why this minimizes operational overhead:

• No servers or clusters to provision.
• No data-loading process required.
• Pay primarily for the data scanned by each query.
• The existing S3-based architecture remains unchanged.
• A table definition can be created in Athena, either manually or through the Glue Data Catalog, to describe the JSON structure.

• A: Redshift requires loading data into a data warehouse and managing additional infrastructure.
• B: CloudWatch Logs is intended for log collection and monitoring, not direct SQL analysis of existing S3 JSON files.
• D: Glue plus EMR introduces a data catalog, cluster, and Spark-job management, which is excessive for simple, occasional queries.

Question 802:
Yes—if the port is a trunk carrying 802.1Q VLANs (e.g., a server NIC configured for VLAN tagging), the per-port option is:

• switch(config-if)# spanning-tree portfast trunk

• For a typical edge/access port (PC), the usual per-interface command is simply switch(config-if)# spanning-tree portfast, but that exact command isn’t in your list.
• Global default (option A) affects all ports, not just one.
• PortFast on trunks bypasses some STP protections, so use with caution and consider BPDU Guard where appropriate.

Question 2:
For Question 2, the correct concept is C) Machine Learning (ML).

• Reason: Predicting future buying behavior from browsing history and past purchases is a predictive analytics task best handled by ML, which learns patterns from historical data.
• Why not NLP or Computer Vision: NLP is for text data; Computer Vision is for images/videos; neither directly fits predicting customer behavior from structured user data.
• About Deep Learning: DL is a subset of ML, useful for very large or unstructured data; but for typical retail prediction with structured data, general ML approaches are more appropriate and interpretable.

Question 4:
You're right to flag that. The key concept is this:

• Group-based licensing can be applied to groups in Azure AD, but it only works with security groups. Microsoft 365 groups (formerly Office 365 groups) are not eligible for direct license assignment.

• In the Azure portal, go to Groups > select a group > check the Group Type. It will show either "Security" or "Microsoft 365".
• If you’re using PowerShell/Graph, look for the group type or the presence of a “Unified” group type for M365 groups (security groups won’t have that).

Question 18:
Answer: ODBC (option B)
Explanation:

• There is no native Cassandra connector in Power BI. To connect, you use a generic data connector that can talk to Cassandra if you have an ODBC driver for Cassandra.
• ODBC is the standard way to connect to many databases when a native connector isn’t available. If you install a Cassandra ODBC driver, you can configure a DSN and then in Power BI Desktop use the ODBC option under Get Data.
• The other options aren’t suitable in this scenario:

• Install a 64-bit Cassandra ODBC driver and configure a DSN.
• In Power BI Desktop, choose Get Data > ODBC, select the DSN, and connect.
• Load data and build visuals.

Question 366:
Question 366 asks how to apply an Application Security Group (ASG1) to VM1. The key concept is that an ASG is attached to network interfaces, not directly to a VM.

• Correct answer: A. Associate NIC1 to ASG1
• Why: An ASG is used to group NICs so NSG rules can target the group. To apply ASG1 to VM1, you must attach VM1’s NIC (NIC1) to ASG1. Merely modifying the ASG’s properties or modifying NSG1 does not attach the VM’s NIC to the ASG.
• Why others are wrong:

• After associating NIC1 with ASG1, you can reference ASG1 in NSG rules as a source or destination to control traffic for VM1’s NIC. Example commands (CLI) or portal steps involve adding the NIC to the ASG.

Question 1:
Correct answer: Redeploy VM1 and VM2 to the same availability set.
Why:

• A Basic Load Balancer’s backend pool must consist of VMs that are in the same Availability Set. If VM1 and VM2 are in different AVSets (or one isn’t in an AVSet), you can’t add both to LB1’s backend pool. Redeploying/moving both VMs into the same Availability Set resolves this.
• If you needed cross-AVSet load balancing, you would use a Standard Load Balancer instead.

• Create or choose a single Availability Set.
• Move VM1 and VM2 into that AVSet.
• Add both VMs to LB1’s backend pool.

Question 1:
Here’s a targeted explanation of Question 1.

• The scenario: You’re deploying several new VMs on on-prem Hyper-V (Windows Server 2012 R2). You’ve got PowerShell scripts to configure VMs after deployment and want them to run automatically on each new VM.

• Options brief:

• Why A is the best choice here:

• Implementation tip:

Question 1:
The correct answer is C.
Why: In few-shot prompting, the value comes from high-quality, representative demonstrations. The examples should be diverse and typical of what the model will see in production, so the model learns the true input–label mapping and generalizes to unseen emails.
Why the other options are less appropriate:

• A: Using random, unrelated examples does not reflect the actual task distribution and won’t help the model generalize to real inputs.
• B: “Always use more than 10 examples” isn’t a universal rule; quantity without quality and relevance can add noise.
• D: Intentionally incorrect labels would mislead the model and degrade performance; you want correct, coherent mappings.

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Question 24:
Question 24 asks which three actions are needed to set up intercompany accounting between two legal entities.
The three correct actions are:

• A) Select intercompany journal names.
• C) Create intercompany main accounts to use for the due to and due from accounting entries.
• D) Define intercompany accounting setup by creating legal entity pairs defining originating and destination companies.

• D defines the actual pairing and direction (which entity is originating and which is destination). Without defined pairs, there is no enabled intercompany relationship.
• C establishes the main GL accounts used for the due-to and due-from postings between the entities, enabling correct cross-entity accounting and audit trails.
• A standardizes and identifies intercompany postings via dedicated journal names, aiding tracking and reporting.

• B (Configure intercompany accounting in both the originating and destination entities) is not listed as one of the three actions in this question’s solution.
• E (Configure intercompany accounting in the destination entity only) would be insufficient on its own.

Question 1:
The correct answer is Enabling team.

• In SAFe, enabling teams are designed to assist other teams by providing specialized capabilities, coaching, and help with adopting new technologies or practices. They focus on enabling proficiency across teams rather than delivering features themselves.
• Platform teams provide shared services across teams (not primarily about coaching on new tech).
• Stream-aligned teams are value-stream–oriented and deliver features to customers.
• Complicated subsystem teams handle a part of the system that requires deep expertise, but not primarily to uplift other teams’ capabilities.

Question 1:

• Answer: A

• Why: For a Snowball Edge data-transfer job, the device rental covers the use of the appliance for the initial 10-day period at no extra charge. After those 10 days, AWS charges a daily rental fee for continued use. Data transfer activities (in or out of the appliance) and ongoing use beyond the initial window typically incur separate charges, so options B, C, and D would involve costs. In short, the only option that’s free is using the appliance for the first 10 days.

Question 1:
The best solution is A: Configure a SetupComplete.cmd batch file in the %windir%\setup\scripts directory.
Why this is correct:

• SetupComplete.cmd runs automatically during Windows setup after OS deployment from a generalized image. When you create new VMs from that image, the script executes on first boot, applying your post-deployment configuration without requiring user interaction.
• This approach is appropriate for on-prem Hyper-V environments where you’re building and deploying VMs from a prepared image.

• B (logon scripts): Run only after a user logs on; not guaranteed for first boot or for machines without interactive logon.
• C (startup scripts via GPO): Can run at startup, but requires domain policy application and may run multiple times or fail if the machine isn’t in a ready state.
• D (place scripts in a new VHD): Not a scalable or automated method; requires manual steps and doesn’t ensure consistent execution on every new VM.

Question 9:
Question 9 asks about how GitHub Copilot identifies public code matches when the public code filter is on.

• Correct answer: A — Running code suggestions through filters designed to detect public code.

• Explanation: When the public code filter is enabled, Copilot analyzes each generated suggestion using filters that look for matches with publicly available code. This helps prevent output that might infringe copyright or licensing terms. The other options (B, C, D) describe methods that are not how the public code filter operates.

Question 2:
I can’t view the exhibit image, but this is the typical NetApp ONTAP behavior for Question 2.

• The correct answer is D: Add HOST 3's IP address to the NFS export policy.
• Why: NFS access is controlled by export-policy rules. If the new ESXi host’s IP isn’t listed in the NFS export policy, the host cannot mount the NFS datastore, even if the volume and LUN are configured correctly.
• Why the other options don’t solve it:

Question 23:
Question 23 describes a multimodal model where users can upload unsafe images that could contain hidden instructions. The goal is to implement controls to mitigate this risk.
Key points to understand

• Prompt shield for documents: Highly effective. It scans text extracted from inputs (including image text) before it’s sent to the LLM to catch hidden instructions or jailbreaking tries embedded in documents or image-derived text.
• Prompt shield for user prompts: Partially effective. It blocks direct jailbreak attempts written in the user’s prompt, but doesn’t catch everything, especially content coming from image text.
• Image moderation: Highly effective. Blocks unsafe or harmful images before they reach the model, preventing many attacks at the source.
• Protected Material Detection: Not helpful here. It’s designed to detect copyrighted material in outputs, not to protect against inputs that try to manipulate the model.

• The strongest defense is defense in depth: combine image moderation with both types of prompt shields. The document/text shield catches hidden instructions in extracted image text; the user-prompt shield mitigates jailbreak attempts in user-provided prompts; image moderation stops unsafe images before processing.

• The stated answer (A: “configure a prompt shield for user prompts”) would help, but it alone does not fully meet the goal. A more robust approach is to apply all three controls (document prompt shield, user prompt shield, and image moderation) to achieve stronger risk mitigation.

beautiful exams

You need to implement the date dimension in the data store. The solution must meet the technical requirements. What are two ways to achieve the goal? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point. Populate the date dimension table by using a dataflow. Populate the date dimension table by using a Copy activity in a pipeline. Populate the date dimension view by using T-SQL. Populate the date dimension table by using a Stored procedure activity in a pipeline.Please answer

• The two correct options: A and D.

• Why:

• Note: B (Copy in a pipeline) would require a source, and C (date dimension view via T-SQL) is feasible but not selected here; the two stated options are the ones identified as correct for this question.

Question 14:

• Correct selections: B and E

• B. Admin access to the deployment pipeline: This gives the developers the ability to manage and run deployments within the pipeline, enabling them to deploy content to the Development and Test stages.
• E. Contributor access to the Development and Test workspaces: This level allows them to deploy items into the Development and Test workspaces as required, while preventing deployments to Production.

• If you also need the developers to view Production, grant them Viewer access to the Production workspace (not part of the two required options, but needed to satisfy the “view Production” requirement).

Question 5:
Question 5 asks how to identify min and max values for each column in a Dataflow result.
Correct options: B and E.

• B. Enable column profile: This turns on column profiling, which computes descriptive statistics for each column, including min and max values.
• E. Enable details pane: With the details pane enabled, you can view the per-column profile data (including min and max) when you select a column.

• A (Show column value distribution) is not required for min/max; it's for distribution histograms.
• C (Show column profile in details pane) is optional. If the details pane is already enabled (E) and column profiling is on (B), you can view the profile without explicitly enabling C.

Question 18:
Question 18: Why not A?

• The two recommended strategies are B and D (per the answer key):

• Why not A: A focuses on identifying the data to migrate and planning scripts for verifying data integrity. While important, it’s primarily a preparation/validation activity, not an active risk-mitigation step during the migration itself. The question asks for strategies that directly mitigate migration risks in practice, such as staged rollout (B) and thorough testing in a sandbox with real data (D). A does not address go-live risk, user adoption, or testing of the migration process in a controlled environment.

Question 4:
Question 4 is about when to use batch processing.

• Answer key: A (the option related to “When to use batch processing”).
• Core idea: Batch processing is used when you can tolerate some delay and don’t need results instantly. Data is collected over a period, then processed together in a batch.

• Latencies are expected with batch jobs. The system processes data in groups rather than as soon as data arrives.
• The processes are often not mission-critical at the exact moment they run, so delays don’t impact operations.

• Batch processing vs real-time processing: Batch processes collect data and run at scheduled times or when resources are available, whereas real-time processing handles data immediately.
• When to use batch processing:

Question 5:
I can’t see the [Image] in Question 5, but I can explain the likely reasoning.

• Correct components: SAS adapter and disk (options B and D).
• Why: This question is about diagnosing a storage-path issue inside the node. The SAS adapter connects disks to the controller, and the disks themselves are where I/O problems or failures usually originate. The cluster switches and network interface cards are more related to the network path rather than the direct storage path, unless the symptom points to a network fault.

• SAS adapter

• Disk

Question 12:
Here’s why Question 12’s correct choices are C and D.

• C (Azure DevOps, build and upload to asset library)

• D (Visual Studio, create deployment package and upload)

• A: Visual Studio export the project and upload to asset library

• B: Azure DevOps, queue a build and upload the model to the asset library

Question 3:
Question 3 asks for two valid ways to meet the purchase order creation validation (warn if the vendor is on the exclusion list for the customer/product and block/alert accordingly).
Correct answers: C and D

• C: In Application Explorer, create a form extension and implement validation.

• D: Implement Chain of Command (CoC) and method wrapping by creating a form extension class.

• A (class with a form data source event handler) is not the standard pattern for this UI-level validation scenario and is less direct for enforcing creation-time behavior.
• B (table extension with validation) cannot sufficiently enforce the UI-level workflow or trigger user-facing warnings during PO creation.

Question 12:
Here’s how to understand question 12.

• What the question asks: Two valid ways to prepare and deploy a software deployable package to a test environment (via the asset library in LCS).

• The correct options: C and D.

• Why A and B are not correct: