Q27. Which of the following is a protocol that enables a client to download an e-mail that
has arrived at the mailbox of a remote server?
a) DNS b) HTTP c) POP3 d) SMTP
Q28. Which of the following is an appropriate explanation concerning URL?
a) It is a communications protocol between a Web page and a browser.
b) It is a message about the update history of a Web page.
c) It is a notation for representing the location of a Web page.
d) It is grammar for describing the content (i.e., body) of a Web page.
Q29. Which of the following is an appropriate description concerning a virus check for an
e-mail?
a) A virus check does not need to be performed if the e-mail is encrypted.
b) A virus check is not required for the received e-mail if it is inspected by the sender.
c) A virus check is performed even if the attached file has a file extension of “jpg”.
d) A virus check is performed only for the e-mail sent by an unknown sender.