5. A is a specific type of online social network that enables members to share photos, music, and videos. (69) a. blog b. wiki c. podcast d. media sharing Web site 6. A(n) is a small version of a larger graphic. (71) a. thumbnail b. wiki c. MP3 d. portal 7. In e-commerce, one consumer sells directly to another. (75) a. consumer-to-business b. business-to-business C. consumer-to-consumer d. business-to-consumer 8. The standard permits uploading and downloading of files on the Internet. (80) a. FTP b. newsgroup c. message board d. mailing list