A style can be imported into an external style sheet using the ____________________ rule.
Fill in the blank(s) with the appropriate word(s).
@import
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Use telnet to connect to a system on which you have an SMTP email account, then send yourself an email.
Log onto the system and check that the email indeed arrived.
Consider the Simple Mail Transfer Protocol (SMTP)4.An excerpt from the RFC for this protocol provides the following sample session.
```
R: 220 USC-ISI.ARPA Simple Mail Transfer Service Ready
S: HELO LBL-UNIX.ARPA
R: 250 USC-ISI.ARPA
S: MAIL FROM:
To open the Data Validation dialog box, click the Data tab on the Ribbon, and then click Authentication in the Data Tools group. _________________________
Answer the following statement true (T) or false (F)
Which of the following is a C.I.A. triad characteristic that ensures only those with sufficient privileges and a demonstrated need may access certain information?
A. integrity B. availability C. authentication D. confidentiality
Which term best describes a hash or code pattern that antivirus software companies use to compare known viruses to every file on a computer?
A. signatures B. heuristics C. macros D. bots