Understanding URLs and DNS

What does URL stand for?

• Uniform Resource Locator

• Universal Resource Link

• Uniform Retrieval Locator

• Unique Resource Locator

What is the purpose of a DNS?

• To display web pages

• To convert domain names into IP addresses

• To create URLs

• To store website data

Which of the following is an example of a URL?

• 192.168.1.1

• www.example.com

• http://www.example.com/index.html

• www.example

What is the first step in accessing a web page?

• The browser sends a request to the server

• The user types the URL in the browser

• The DNS returns the IP address

• The browser loads the web page

After typing the URL, what does the web browser do next?

• Loads the website

• Sends the URL to the DNS

• Displays an error message

• Closes the application

What does the DNS do after receiving the URL?

• Sends back the URL

• Sends back the IP address

• Opens the web browser

• Displays the website

What happens after the DNS sends back the IP address?

• The user receives an email

• The browser sends the IP address to the web server

• The DNS stores the IP address

• The browser displays the DNS settings

Why is it important to convert a URL into an IP address?

• URLs are too long

• Web servers only understand IP addresses

• IP addresses are more user-friendly

• URLs are not secure

What does an IP address look like?

• A string of letters

• A series of numbers and periods (e.g., 192.168.0.1)

• A web page title

• A domain name

Which component of the internet acts like a phonebook for websites?

• Web server

• Browser

• DNS

• URL