You are a data scientist designing an air traffic control model, and you choose to leverage Oracle AutoML. You understand that the Oracle AutoML pipeline consists of multiple stages and automatically operates in a certain sequence. What is the correct sequence for the Oracle AutoML pipeline?
Correct Answer: C
Detailed Answer in Step-by-Step Solution: Objective: Sequence OCI AutoML pipeline stages. Stages: Adaptive sampling: Reduces data size if large. Feature selection: Picks relevant features. Algorithm selection: Chooses best model type. Hyperparameter tuning: Optimizes model params. Evaluate: C (sampling, features, algorithms, tuning) matches logical flow—data first, then model. Reasoning: Sampling precedes feature work—standard in OCI. Conclusion: C is correct. OCI documentation states: “AutoML pipeline runs 1) adaptive sampling, 2) feature selection, 3) algorithm selection, 4) hyperparameter tuning (C).” Sampling reduces data first, then features and models are optimized—other orders (A, B, D) misalign with OCI’s sequence. 1: Oracle Cloud Infrastructure AutoML Documentation, "Pipeline Sequence".
1Z0-1110-26 Exam Question 32
You have configured the Management Agent on an Oracle Cloud Infrastructure (OCI) Linux instance for log ingestion purposes. Which is a required configuration for OCI Logging Analytics service to collect data from multiple logs of this instance?
Correct Answer: C
Detailed Answer in Step-by-Step Solution: Objective: Identify the required configuration for OCI Logging Analytics to collect logs from an instance. Understand Logging Analytics: Collects and analyzes logs from OCI resources via Management Agents. Key Concepts: Entity: Represents the instance (e.g., Linux VM). Source: Defines log locations (e.g., file paths). Log Group: Organizes logs for analysis. Evaluate Options: A: Log-Log Group—Groups logs, not collection setup. B: Entity-Log—Links instance to logs, but not source-specific. C: Source-Entity—Maps log sources to the instance—correct. D: Log Group-Source—Post-collection organization, not ingestion. Reasoning: C establishes the link between the instance and its log sources—key for ingestion. Conclusion: C is correct. OCI documentation states: “To collect logs using Logging Analytics, configure a Source-Entity Association (C) to link the Management Agent on the instance (entity) to specific log sources (e.g., file paths).” A and D organize logs post-collection, B is less specific—only C is required for ingestion per OCI’s Logging Analytics setup. 1: Oracle Cloud Infrastructure Logging Analytics Documentation, "Configuring Log Collection".
1Z0-1110-26 Exam Question 33
You are working as a data scientist for a healthcare company. They decide to analyze the data to find patterns in a large volume of electronic medical records. You are asked to build a PySpark solution to analyze these records in a JupyterLab notebook. What is the order of recommended stepsto develop a PySpark application in Oracle Cloud Infrastructure (OCI) Data Science?
Correct Answer: D
Detailed Answer in Step-by-Step Solution: Objective: Sequence steps for PySpark app development. Steps: Launch notebook: First—sets up environment. Install PySpark conda: Second—adds Spark libraries. Configure core-site.xml: Third—connects to data. Develop app: Fourth—writes code. Data Flow: Fifth—scales (optional). Evaluate: D (1, 2, 3, 4, 5) matches this logical order. Reasoning: Notebook first, then setup and coding. Conclusion: D is correct. OCI documentation states: “1) Launch a notebook session, 2) install a PySpark conda env, 3) configure core-site.xml, 4) develop your PySpark app, 5) optionally use Data Flow (D).” Other orders (A, B, C) misplace notebook launch or config—D is correct. 1: Oracle Cloud Infrastructure Data Science Documentation, "PySpark Development".
1Z0-1110-26 Exam Question 34
For your next data science project, you need access to public geospatial images. Which Oracle Cloud service provides free access to those images?
Correct Answer: D
Detailed Answer in Step-by-Step Solution: Objective: Find the OCI service for free geospatial images. Evaluate Options: A: Big Data Service—Spark processing, not datasets. B: Analytics Cloud—Visualization, not data source. C: Data Science—ML platform, not dataset provider. D: Open Data—Free public datasets, including geospatial—correct. Reasoning: Open Data is OCI’s public dataset hub. Conclusion: D is correct. OCI documentation states: “Oracle Open Data provides free access to curated datasets, including geospatial images, for public use.” A, B, and C serve other purposes—only D delivers free geospatial data. 1: Oracle Cloud Infrastructure Open Data Documentation, "Dataset Offerings".
1Z0-1110-26 Exam Question 35
You want to make API calls against other OCI services from your instance without configuring user credentials. How would you achieve this?
Correct Answer: A
Detailed Answer in Step-by-Step Solution: Objective: Enable credential-less API calls from an instance. Understand Resource Principal: Allows instances to authenticate via IAM without user creds. Evaluate Options: A: Dynamic group + policy—Correct; groups instance, grants access. B: Dynamic group only—Incomplete; needs policy. C: User group—Irrelevant for instances. D: No config—False; setup required. Reasoning: A sets up resource principal fully—group and perms. Conclusion: A is correct. OCI documentation states: “To make API calls without credentials, create a dynamic group including the instance and add a policy (A) granting access to OCI services—enables resource principal.” B lacks policy, C is user-based, D is false—only A completes the process per OCI’s IAM setup. 1: Oracle Cloud Infrastructure IAM Documentation, "Resource Principal Configuration".
