True or false social networking sites never allow members to post messages on the pages of other members

According to alisa miller foreign news bureaus

Q14 what is most important for you to choose before you build a network? a. private network b. nos c. network media d. network protocol e. directory service

You wanted to look up information about alzheimer's, but you were unsure if it was spelled "alsheimer's" or "alzheimer's." which advanced search strategy would be useful? a) a boolean search b) using a wild card in your search c) trying different search engines d) doing a search for "alsheimer's not alzheimer's" asap. ill give brainlist.