You and your friend are building a KNN model to classify customers based on their shopping patterns. You use cross-validation to choose K = 6, while your friend guesses and sets K = 2. On the test set, you notice that your friend's model has a much higher training accuracy but much lower test accuracy than yours. Which of the following is the best explanation?

You are running a K-means clustering algorithm on customer segmentation data. Each time you run the model, you get different cluster assignments, making it hard to compare results. Which parameter should you adjust in the kmeans() function to achieve more stable and consistent results?

You are fitting an ARIMA model to a stock price time series. You want to use no moving average component, 5 lags for autoregression, and 1 difference to make the series stationary. Which of the following model specifications should you use?

You are debugging a login issue on a website and want to check if the site is setting a "session" cookie properly. In Chrome DevTools, which tab should you open to view the cookies associated with the website?

You are building a linear regression model to predict house prices based on the number of bedrooms. You obtain a p-value of 0.03 for the coefficient of "number of bedrooms." Which of the following conclusions can you draw?

You have a dataset of customer names that includes duplicates due to inconsistent capitalization and extra whitespace (e.g., 'John Doe', 'JOHN DOE', 'John Doe'). Which of the following tools would be best for cleaning and de-duplicating this data?

You want to check if a button click on a website triggers an API call to the backend. Which tab in Chrome DevTools should you monitor to see the network request?

You are creating a Streamlit app to display COVID-19 statistics. At the top of the app, you want to display an introductory message explaining the purpose of the app. Which of the following commands will achieve this ?

Your manager asks you to share your Tableau file with the sales team so they can see all the visualizations, dashboards, and underlying data. What type of file would you share with them to include everything needed for the team to view the content and access the data?

You are asked to create an interactive map showing the locations of COVID-19 vaccination centers. Which of the following Python libraries would be most useful for geospatial analysis and visualization?

Which of the following actions should Reema take to validate the LLM's claims?

Reema realizes that the LLM's response was too short, and she wants more details for the introduction. She tries the following prompt: "Give a more detailed and comprehensive introduction on the impact of AI on employment. Include key trends, specific examples, and the role of governments in addressing employment issues." The LLM takes longer to generate the response and produces a longer, more detailed introduction.Which of the following is TRUE about how this new prompt impacts usage and costs?

Reema notices that the LLM sometimes produces "generic" and "vague" responses. She wants more specific, detailed, and structured answers. Which of the following prompts would most likely produce a more specific and useful response from the LLM?

The first step is to calculate the distance (in meters) between the Emergency Supply Center and each of the 4 hospitals using the Haversine formula. Which of the following is the correct distance (in meters,most closest) from the Emergency Supply Center (Latitude: 40.7222, Longitude: -74.0134) to Eastview Medical Center (Latitude: 40.7306, Longitude: -73.9866)?

The response team wants to deliver to the nearest hospital first. Which of the following hospitals is closest to the Emergency Supply Center (Latitude: 40.7222, Longitude: -74.0134)?

The response team has decided to follow the "nearest hospital first" strategy. The team first goes from the Emergency Supply Center to the nearest hospital identified in the previous question, then proceeds to the next closest hospital from there, and so on until all hospitals are served. Based on this strategy, which of the following represents the correct order of hospitals to visit?

The response team realizes that following the "nearest hospital first" strategy may not be optimal. They consider using a more advanced strategy where they plan the entire route before starting. The team uses geospatial optimization tools to find the shortest route using a "traveling salesperson problem (TSP)" approach. Which of the following tools would be the most appropriate for implementing this route optimization?

Which of the following best describes the purpose of using the Haversine formula in geospatial analysis?

Which of the below can be a valid log file entry based on the descriptions provided in the main question?

Which of the following fields are necessary to filter "GET requests made for pages under /telugump3/ from 10:00 until before 21:00 on Saturdays"?

Which of the following methods is best for identifying if a log entry's timestamp corresponds to a Saturday? (timestamp is a method in datetime library)

How would you identify log entries where the time is between 10:00 and 20:59 on Saturdays?

How would you identify if the Status code of a log entry indicates a successful request? (Assume that status is correctly stored in the variable ‘status’)

If the count of log entries appears much smaller than expected, which of the following could be the reason?

The instructor wants to ensure that the agent’s purpose is clear to the LLM. What is the role of the system prompt in controlling the LLM's behavior?

Choose the best system prompt that achieves the instructor's goals.

A student asks the following question to EduBot: "How do I convert degrees to radians?" The goal of the LLM assistant is to use logical reasoning to prompt the student to think critically. Instead of directly providing the formula, the assistant should encourage the student to recall or derive it on their own. The assistant should use concepts, relationships, and reasoning techniques that help the student make connections. Which of the below responses will be an ideal response from the agent in this situation?

Assume that the EduBot is designed to provide context-aware, personalized guidance to students by using a RAG (Retrieval-Augmented Generation) system. The RAG system works as follows: 1. Course Material Storage: Custom course content (like PDFs, guides, and notes) is split into smaller chunks. Each chunk is vectorized using an embedding model. 2. Vector Database: The vectorized chunks are stored in a FAISS or Weaviate vector database. 3. Retriever: When a student asks a question, the system retrieves the most relevant content (based on semantic similarity) from the vector database. 4. LLM Contextualization: The retrieved content is added as context in the assistant's prompt, which is then used by the LLM (like GPT-4) to generate a personalized, context-aware response. Which of the following correctly describes the process flow of a RAG-based system for the IITM TDS Teaching Assistant?