18 Questions
What is the purpose of a database schema?
To provide a good organization of storing application data
Which type of data organization does the relational model use?
Tables
What is one of the key features of a good storage system according to the text?
Always being fault tolerant and reliable
How are rows in a relational database table also known as?
Tuples
What is the main role of a Mongoose model in a MongoDB database?
Creating and managing database schemas
Which type of system property is crucial for a storage system's availability?
'Always available' even with many concurrent requests
What is the purpose of a primary key in a database table?
Organize data around accesses
In the context of web applications, what does Rails' Active Record do?
Maps objects to database records
What is MongoDB's data model based on?
Collections containing documents
How does MongoDB ensure fast lookups?
By utilizing indexes for quick retrieval
Which feature of NoSQL databases like MongoDB aims to handle scalability and reliability?
Handling scalability and reliability
How do web applications benefit from using secondary keys in database tables?
Improve query performance for specific fields
What is the purpose of relational algebra in SQL?
To assist in querying relational databases efficiently
In a database, what is the primary function of keys and indexes?
To provide a way to access specific rows quickly
What does the AUTO_INCREMENT attribute in SQL help with?
It generates unique values for a column automatically
Which SQL command is used to delete specific rows from a table based on a condition?
DELETE FROM
Why are indexes important for database performance?
To optimize query performance by allowing fast data retrieval
What is the main benefit of using structured query language (SQL) for querying databases?
It offers efficient ways to extract specific information from a database
Explore key concepts from Mendel Rosenblum's CS142 lecture notes on storage tier, including topics like database, web application architecture, web server, web browser, storage system, LAN, Internet, and HTTP. Understand the importance of storage system properties such as availability, scalability, and reliability in storing application data effectively.
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