1. Built-In Authentication mechanisms : a. BASIC - dialog box pops up for login and password.The password is transmitted as plain text with base64 encoding to the server. b. DIGEST - same as above, but the password is encrypted and sent back to the server. 2. Attributes of taglib directive are : a. Prefix : is a unique name for the tag library to be used in the JSP. b. uri : defines the location of the taglibrary itself. (Refer page:289 of the study kit for more info).