Detailed Answer in Step-by-Step Solution:
* Objective: Select an OCI AI service for text and table extraction from documents.
* Evaluate Options:
* A: Language-Text analysis, not extraction-incorrect.
* B: Digital Assistant-Chatbots, not document tasks-incorrect.
* C: Speech-Audio transcription, not documents-incorrect.
* D: Vision-OCR for text/tables-correct.
* Reasoning: Vision's OCR extracts text and tables from document images.
* Conclusion: D is correct.
OCI documentation states: "OCI Vision (D) uses OCR to extract text and tables from documents, supporting document analysis tasks." A analyzes text post-extraction, B and C are unrelated-only D fits per OCI's AI services.
Oracle Cloud Infrastructure Vision Documentation, "Document Analysis Features".

Detailed Answer in Step-by-Step Solution:
* Objective: Identify the firewall type protecting against web app attacks like SQL injection and XSS.
* Understand Firewall Types:
* Stateful Inspection: Tracks connection states, not app-specific.
* Web Application Firewall (WAF): Targets web app vulnerabilities.
* Incident Firewall: Not a recognized term.
* Packet Filtering: Basic packet rules, not app-aware.
* Evaluate Options:
* A: Stateful-General network, not web-specific-incorrect.
* B: WAF-Designed for SQLi, XSS-correct.
* C: Incident-Non-existent-incorrect.
* D: Packet-Low-level, not app-focused-incorrect.
* Reasoning: WAF specializes in web app security-matches requirement.
* Conclusion: B is correct.
OCI documentation states: "Web Application Firewall (WAF) (B) protects against web application attacks like SQL injection and cross-site scripting by inspecting HTTP traffic." A and D handle network-level threats, C isn't real-only B aligns with OCI's WAF purpose.
Oracle Cloud Infrastructure WAF Documentation, "Overview".

Detailed Answer in Step-by-Step Solution:
* Objective: Identify three stages in OCI AutoML Pipeline.
* Understand Pipeline: Automates ML steps from data to model training.
* Evaluate Options:
* A: Feature Selection-Selects relevant features-correct.
* B: Adaptive Sampling-Reduces data size-correct.
* C: Model Deployment-Post-pipeline step-incorrect.
* D: Feature Extraction-Not explicit in OCI AutoML-incorrect.
* E: Algorithm Selection-Chooses best model-correct.
* Reasoning: A, B, E are core automated stages; C and D are separate.
* Conclusion: A, B, E are correct.
OCI documentation lists "AutoML Pipeline stages as adaptive sampling (B), feature selection (A), algorithm selection (E), and hyperparameter tuning." Deployment (C) is post-pipeline, and extraction (D) isn't highlighted-only A, B, E are included per OCI's design.
Oracle Cloud Infrastructure AutoML Documentation, "Pipeline Components".

Detailed Answer in Step-by-Step Solution:
* Objective: Find the OCI service for accessing large public datasets.
* Evaluate Options:
* A: Oracle Databases-General-purpose, not dataset-focused.
* B: ADW-Analytics warehouse, not a dataset repository.
* C: OCI Data Science-ML platform, not a dataset provider.
* D: Oracle Open Data-Free, public datasets (e.g., geospatial).
* Reasoning: Open Data provides pre-existing large datasets for research.
* Conclusion: D is correct.
OCI documentation states: "Oracle Open Data provides free access to large, curated datasets, such as geospatial data, ideal for researchers." Databases (A) and ADW (B) are for storage/analytics, Data Science (C) is for ML-not datasets-only Open Data (D) fits.
Oracle Cloud Infrastructure Open Data Documentation, "Overview".

Detailed Answer in Step-by-Step Solution:
* Objective: Fix network timeout for pip install in a notebook.
* Evaluate Options:
* A: FastConnect-On-premises link, not public internet.
* B: VNIC-Default, not the issue.
* C: NAT Gateway-Grants internet access-correct.
* D: Service Gateway-OCI services, not PyPI.
* Reasoning: C enables outbound traffic to public repos.
* Conclusion: C is correct.
OCI documentation states: "A NAT Gateway (C) is required for notebook sessions in private subnets to access public internet repositories like PyPI." A, B, and D don't provide this-only C resolves the timeout.
Oracle Cloud Infrastructure Data Science Documentation, "Notebook Networking".