Meta tag with parameters name="robots" and content="noindex, nofollow" will close indexing or not?

Question

Search Engine Optimization

The question is as follows:
There are a large number of pages with non-unique content that need to be closed from indexing so that non-unique texts are not seen by search engines. Will this meta tag help get rid of such problems?
<META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW" />

Answer 1

Yes, it will help. The main thing is not to close such pages in robots.txt. Otherwise, pages that are closed in robots.txt may be presented in search results (for example, if there is a link to it from another site or a page on your site).
Here is a link to the google manual on using this meta tag.

Answer 2

Yes, it will help.

Answer 3

1 Will help
2 Put a canonical on the canonical page
3 Close via robots.txt