Select the technology that was developed by a joint effort between Netscape and Sun Microsystems.

A(n) ____ anomaly occurs when a user deletes data from a database and unintentionally deletes the only occurrence of that data in the database.

A. update B. deletion C. append D. purging

?In the context of HTML audio and video element attributes, thepreloadattribute's type _____ is used to preload only descriptive data about a particular clip.

A. ?metadata B. ?descriptions C. ?auto D. ?captions