Answer to Question 1
Answer: C
Explanation: C) A microblog is a variation on blogging in which messages are sharply restricted to specific character counts. Twitter is the best known of these systems, but many others exist. Some companies have private microblogging systems for internal use only; these systems are sometimes referred to as enterprise microblogging or internal micromessaging.
Answer to Question 2
Answer: FALSE
Explanation: Not all blogs invite comments, although most do, and many bloggers consider comments to be an essential feature. Blog comments can be a valuable source of news, information, and insights.