You missed the entire point of the article. The point is now to know whether you know those 10 lines by heart, it's whether you can have a discussion starting from just this.
Do you know why the document starts with a doctype declaration? What accessibility tags are and why they are important? What is OpenGraph and why SEO is important? What are CSS resets and why do we use them?
If you can take a guess you're already halfway there. If you can explain what you know about them you've aced it. It's not about knowing all of the meta tags or the OpenGraph attributes, it's whether you can have a discussion about mobile design, accessibility and SEO.
Do you know why the document starts with a doctype declaration? What accessibility tags are and why they are important? What is OpenGraph and why SEO is important? What are CSS resets and why do we use them?
If you can take a guess you're already halfway there. If you can explain what you know about them you've aced it. It's not about knowing all of the meta tags or the OpenGraph attributes, it's whether you can have a discussion about mobile design, accessibility and SEO.