# Knowledge check: Semantic structure

1. **Which of the following are semantic HTML tags? Choose all that apply.**
    
    * <mark>&lt;header&gt;</mark>
        
    * &lt;div&gt;
        
    * &lt;table&gt;
        
    * <mark>&lt;article&gt;</mark>
        
    * <mark>&lt;h1&gt;</mark>
        
2. **Complete the sentence: Semantic tags are a way to...**
    
    * Create a table of data.
        
    * Create a layout for a webpage or document.
        
    * <mark>Give meaning to the content of a webpage or document.</mark>
        
    * Add style to a webpage or document.
        
3. **What is Open Graph protocol (OGP)?**
    
    * A protocol for transmitting audio and video over the internet
        
    * <mark>A protocol for describing the shared content on social media platforms</mark>
        
    * A protocol for encrypting data transmitted over the internet
        
    * A protocol for sending and receiving email messages
        
4. **HTML meta tags are used to provide information about a webpage to search engines and other web services.**
    
    * <mark>True</mark>
        
    * False
        
5. **Which of the following meta tags are valid? Choose all that apply.**
    
    * <mark>viewport</mark>
        
    * <mark>og:title</mark>
        
    * responsive
        
    * description
        

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