World of Computer Networking Your CCNA start - Uniform Resource Locator (URL) Ports and Fragments

The lecture explains the concepts of port and URL fragments in web URLs. It covers how ports are used to specify the connection point for HTTP and other protocols, with examples of custom port usage. The lecture also details URL fragments, which point to specific sections within a webpage, and demonstrates their functionality in HTML. The session concludes with a brief overview of domain name levels, setting the stage for the next lecture.

What is the default port for the HTTP protocol?

• 443

• 80

• 8080

• 4433

In the context of URLs, what does specifying a port number after the domain name do?

• It changes the protocol used for the connection.

• It specifies a particular server to connect to.

• It adjusts the port used for the connection.

• It changes the domain name.

What happens if you omit the port number in a URL?

• The connection will fail.

• The URL will be invalid.

• The browser will ask for a port number.

• The default port for the protocol will be used.

Where does a URL fragment appear in a URL?

• Before the path

• At the beginning of the URL

• Before the domain name

• After the path and query parameters

What symbol is used to start a URL fragment?

• @

• &

• #

• %

How does a web browser use a URL fragment?

• To change the domain name

• To modify the protocol

• To navigate to a specific section of a page

• To connect to a different server

In HTML, what attribute is used to link to a URL fragment?

• id

• class

• href

• src