curriculum/challenges/english/blocks/quiz-local-storage-and-crud/66edd3f9bef926f129990425.md
To pass the quiz, you must correctly answer at least 18 of the 20 questions below.
What does CRUD stand for in the context of web development?
Create, Replace, Undo, Delete.
Connect, Remove, Update, Display.
Copy, Retrieve, Update, Delete.
Create, Read, Update, Delete.
Which HTTP method is commonly associated with the Create operation in a RESTful API?
GET
PUT
DELETE
POST
Which of the following CRUD operations is typically performed when modifying an existing record in a database?
Read
Delete
Create
Update
What is the main difference between localStorage and sessionStorage in the Web Storage API?
localStorage stores data in memory, while sessionStorage stores data on the disk.
sessionStorage is faster than localStorage for retrieving data.
localStorage data is only available during a session, while sessionStorage persists across sessions.
localStorage data persists until explicitly deleted, while sessionStorage data is cleared when the page session ends.
Which method is used to store data in localStorage?
localStorage.setData()
localStorage.saveItem()
localStorage.storeData()
localStorage.setItem()
How can you remove a single item from sessionStorage?
sessionStorage.clearItem('key')
sessionStorage.remove('key')
sessionStorage.deleteItem('key')
sessionStorage.removeItem('key')
What is the difference between PUT and PATCH?
PUT modifies specific fields, while PATCH replaces the entire resource.
PUT only adds new resources, while PATCH updates existing ones.
PUT is used for retrieving data, while PATCH is used for sending data.
PUT replaces the entire resource, while PATCH updates specific fields.
What is the cache storage used for?
Cache storage is used to permanently store user credentials securely in the browser for authentication purposes.
Cache storage is used to store large volumes of structured data in the browser using a database system.
Cache storage is used to track user sessions and preferences by storing key-value pairs accessible across multiple websites.
Cache storage is used to store frequently requested network resources, reducing load times and improving performance.
What is a cookie in the context of web development?
A type of HTTP request.
A piece of code that runs in the browser.
A method to store large files on a server.
A small piece of data stored by the user's web browser.
Which of the following methods is used to manually set a cookie in JavaScript?
document.setCookie
document.cookie.set
document.createCookie
document.cookie
Which of the following code snippets correctly deletes a cookie named username?
document.cookie.delete("username");
document.removeCookie("username");
cookie.delete("username");
document.cookie = "username=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;";
Which of the following statements about cookies is false?
Session cookies expire when the browser is closed.
HttpOnly cookies cannot be accessed by JavaScript.
Secure cookies are only transmitted over HTTPS.
Cookies can only be set by the server.
What is browser fingerprinting?
A technique used in identifying users based on their IP address.
A form of data encryption.
A method of storing data in the browser's cache.
A way of tracking users through browser and device attributes.
What is a primary risk associated with storing passwords in local storage?
Local storage data is deleted once you close the browser tab.
Local storage data is lost once you delete cookies.
Local storage doesn't work offline.
Local storage is not encrypted and can be accessed easily.
What of the following statements is true about client-side storage?
Client-side storage uses objects instead of strings to store data.
Client-side storage uses cloud services to sync user data across multiple devices.
Client-side storage is more secure than server-side storage.
Client-side storage allows websites to store data on a user's device.
What is the primary benefit of using IndexedDB over localStorage?
IndexedDB does not require user consent for data storage.
IndexedDB has a simpler API.
IndexedDB is supported in all web browsers.
IndexedDB can handle larger amounts of data and more complex queries.
Which of the following is a valid way to retrieve data from an object store in IndexedDB?
Calling retrieve() on the object store.
Using query() to access specific records.
Using fetch() method.
Using get() on the store reference.
What type of transactions does IndexedDB support?
Read transactions only.
Asynchronous transactions only.
Synchronous transactions only.
Read and write transactions.
Which of the following is true about the lifecycle of a Service Worker?
Service Workers run in the main thread of the web application.
Service Workers can be activated before they are installed.
Service Workers can only run when the web application is open in the browser.
A Service Worker can intercept network requests after it has been activated.
Which statement best describes a key feature of Progressive Web Apps (PWAs)?
PWAs can only be installed on mobile devices.
PWAs are required to have a back-end server.
PWAs can only be accessed through specific browsers.
PWAs provide offline functionality through Service Workers.