Database Interaction and Data Modeling Audio Quiz Quiz

1. Connecting to a SQL Database in Python

   In Python, what is the primary object used to represent a connection to a SQL database when using an object-relational mapper like SQLModel or SQLAlchemy?

   1. Session
   2. Connector
   3. Cursor
   4. Document
   5. Sesion

2. Understanding Primary Keys

   Why is it important to define a primary key in a relational database table?

   1. It uniquely identifies each row in the table
   2. It increases the storage required for each row
   3. It ensures all data in the column is encrypted
   4. It automates JOIN operations between tables
   5. It disables indexes for the table

3. Basic Data Model with SQLModel

   What does a SQLModel class in Python typically represent when modeling a relational database?

   1. A table in the database
   2. A Python dictionary
   3. A database index
   4. A database view
   5. A chain of key-value pairs

4. Performing a CRUD Operation (Create) in NoSQL

   When working with a document-based NoSQL database using Python, which method would you typically use to add a single new document to a collection?

   1. insert_one
   2. put_item
   3. append_document
   4. addRow
   5. isert_one

5. Data Relationships in Graph Databases

   In a graph database, what term is used for the connections that define relationships between nodes?

   1. Edges
   2. Columns
   3. Keys
   4. Tuples
   5. Bridges

6. Updating Data in a Document Database

   Which Python method would you typically use to modify all documents in a collection that match a certain condition in a NoSQL document database?

   1. update_many
   2. modify_all
   3. updateRows
   4. set_all
   5. updat_many

7. Efficient Complex Relationship Queries

   For which scenario would a graph database provide better performance than a traditional relational database?

   1. Finding paths connecting many related entities with unknown depth
   2. Performing simple numerical aggregation on a single table
   3. Storing unstructured JSON documents
   4. Enforcing strict data types on a single field
   5. Updating the same field in every row of one table

8. Querying Data from a Relational Database

   Which SQL statement is used to retrieve specific rows from a table based on defined criteria?

   1. SELECT
   2. GET
   3. RETRIEVE
   4. EXTRACT
   5. SELLECT

9. Flexible Schema Handling

   Why are NoSQL databases often considered more flexible than traditional relational databases?

   1. They allow data models to evolve dynamically without a fixed schema
   2. They require all data to use the same format
   3. They enforce stricter constraints on column data types
   4. They only support storing binary data
   5. They process transactions in a fixed order

10. Python Data Retrieval in a Document Database

    In Python, which method retrieves all documents that match a specified condition from a collection in a document-oriented NoSQL database?

    1. find
    2. search
    3. locate
    4. get_all
    5. fnd