18. All 10.0.0.0/24 datagrams leaving local network have same single source IP address138.76.29.7, different source port numbers. What technology does such a mechanism rely on?(A) NAT (B) NNTP (C) SMTP (D) ICMP (E) PPTP

24. Refer to Table 3 and Table 4, please indicate the CORRECT SQL statement that can output asdepicted in Table 5.(A) SELECT * FROM movies(B) SELECT TOP 1 movies.movie, actors.name FROM movies INNER JOINactors ON movies.actor = actors.id ORDER BY actors.salary DESC(C) SELECT movies.movie, actors.name FROM movies INNER JOIN actorsON movies.actor = actors.id ORDER BY actors.salary(D) All of the above can output the same results, as shown in Table 5.(E) None of the above can output the same results, as shown in Table 5.

18. All 10.0.0.0/24 datagrams leaving local network have same single source IP address138.76.29.7, different source port numbers. What technology does such a mechanism rely on?

(A) NAT
(B) NNTP
(C) SMTP
(D) ICMP
(E) PPTP

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