Podcast
Questions and Answers
Which web browser uses the WebKit software component to render web pages?
Which web browser uses the WebKit software component to render web pages?
- Mozilla Firefox
- Opera
- Microsoft Edge
- Google Chrome (correct)
Which layout engine is used by the Firefox web browser?
Which layout engine is used by the Firefox web browser?
- WebKit
- Trident
- Gecko (correct)
- Blink
Which web browser beats Chrome in India and Indonesia?
Which web browser beats Chrome in India and Indonesia?
- Safari
- UC Browser (correct)
- Opera
- Edge
Who is credited with inventing the World Wide Web?
Who is credited with inventing the World Wide Web?
Which of the following is NOT a major cloud service provider?
Which of the following is NOT a major cloud service provider?
How many Elastic IPv4 addresses per region are accounts limited to in Amazon Web Services?
How many Elastic IPv4 addresses per region are accounts limited to in Amazon Web Services?
What is the purpose of a web server farm?
What is the purpose of a web server farm?
Which company is NOT mentioned as a web hosting service for small businesses/individuals?
Which company is NOT mentioned as a web hosting service for small businesses/individuals?
Which CSS property values are inherited by child elements from their parent element?
Which CSS property values are inherited by child elements from their parent element?
Which pseudo-class selects a link that the user has visited?
Which pseudo-class selects a link that the user has visited?
Where is it recommended to place JavaScript scripts to ensure that the web page content is loaded before the script?
Where is it recommended to place JavaScript scripts to ensure that the web page content is loaded before the script?
What does the length property of an array in JavaScript represent?
What does the length property of an array in JavaScript represent?
Which of the following is true about variable names in Python?
Which of the following is true about variable names in Python?
What is the output of the following code snippet?
x = 5
y = '10'
result = x + y
print(result)
What is the output of the following code snippet?
x = 5
y = '10'
result = x + y
print(result)
What is the value of Word[-3]
in the following code snippet?
Word = 'python'
print(Word[-3])
What is the value of Word[-3]
in the following code snippet?
Word = 'python'
print(Word[-3])
What is the purpose of the XMLHttpRequest object in JavaScript?
What is the purpose of the XMLHttpRequest object in JavaScript?
Which one of the following is a characteristic of the Common Gateway Interface (CGI)?
Which one of the following is a characteristic of the Common Gateway Interface (CGI)?
What is the purpose of a FIELDSET element in HTML?
What is the purpose of a FIELDSET element in HTML?
Which of the following is NOT a server directive used by CGI scripts?
Which of the following is NOT a server directive used by CGI scripts?
What is the purpose of an application server?
What is the purpose of an application server?
Which web server is currently the most popular?
Which web server is currently the most popular?
Which feature allows a web server to host multiple websites?
Which feature allows a web server to host multiple websites?
What is the purpose of basic authentication in HTTP servers?
What is the purpose of basic authentication in HTTP servers?
What is the purpose of CGI scripting in web servers?
What is the purpose of CGI scripting in web servers?
What is the purpose of the 'ServerRoot' directive in Apache web server?
What is the purpose of the 'ServerRoot' directive in Apache web server?
What is the purpose of the 'ErrorLog' directive in Apache web server?
What is the purpose of the 'ErrorLog' directive in Apache web server?
Which of the following is true about the Same-Origin Policy (SOP)?
Which of the following is true about the Same-Origin Policy (SOP)?
Which of the following is true about JSONP (JSON with Padding)?
Which of the following is true about JSONP (JSON with Padding)?
Which of the following is true about JSON and XML?
Which of the following is true about JSON and XML?
Which of the following is true about the JavaScript eval() function and JSON.parse()?
Which of the following is true about the JavaScript eval() function and JSON.parse()?
Study Notes
Web Browsers
- Safari uses the WebKit software component to render web pages.
- Firefox uses the Gecko layout engine.
Web Development
- Chrome is not the most popular browser in India and Indonesia.
- Tim Berners-Lee is credited with inventing the World Wide Web.
Cloud Services
- Amazon Web Services (AWS) limits accounts to 5 Elastic IPv4 addresses per region.
- Oracle is NOT a major cloud service provider.
Web Servers
- A web server farm is a large group of servers that work together to host a website.
- A FIELDSET element in HTML groups related form elements together.
- The XMLHttpRequest object in JavaScript allows web pages to make requests to a server without reloading.
CGI and Server Directives
- CGI (Common Gateway Interface) scripts can execute system-level commands.
- The purpose of an application server is to provide services and functionality to applications.
- The 'ServerRoot' directive in Apache web server specifies the root directory of the server.
- The 'ErrorLog' directive in Apache web server specifies the file where error messages are logged.
Security
- Basic authentication in HTTP servers is a simple method of verifying user identities.
- CGI scripting in web servers provides a way to generate dynamic web content.
- The Same-Origin Policy (SOP) restricts web pages from making requests to a different origin.
JavaScript and JSON
- The JavaScript eval() function can execute a string as JavaScript code, while JSON.parse() parses a JSON string.
- JSONP (JSON with Padding) is a way to circumvent the Same-Origin Policy by injecting script tags.
- JSON is a lightweight data interchange format, while XML is a markup language for storing and transporting data.
Python
- In Python, variable names can include letters, digits, and underscores, but must start with a letter or underscore.
- In Python, the code snippet
x = 5; y = '10'; result = x + y; print(result)
would raise a TypeError because of different data types. - In Python,
Word[-3]
would return the character at the third position from the end of the string 'python'.
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Description
Test your knowledge of HTML form elements with this quiz! Learn about the syntax and attributes of the select tag and understand how to group form elements using the fieldset element.