The short answer: 20 (composite score) is the national ACT average. About half of students score above that, and half of students score below. The top 25% of ACT takers score about 24 or more, so if your score is above 24, that's excellent.
1 SavinâNorov machine gun. 2  Space Network, a NASA relay satellite system. 3  Sthene, an obsolete unit of force or thrust in the metre-tonne-second system of units. 4  Substantia nigra, a brain structure. 5  Supernova, a stellar explosion, in astronomy and cosmology.  Tin, a metallic element with chemical symbol Sn.
What is SNI? Server Name Indication is an extension to the SSL/TLS protocol that allows multiple SSL certificates to be hosted on a single IP address. The way SNI does this is by inserting the HTTP header into the SSL handshake. Because the server can see the intended hostname during the handshake, it can connect the client to the requested website.