Which of the following identifies the WLAN Joe, a user, is connected to?

Which of the following ports carries IMAP traffic, by default, on modern email systems?

A) 25 B) 80 C) 143 D) 23

Which of the following statements creates a multidimensional array with 3 rows, where the first row contains 1 element, the second row contains 4 elements and the final row contains 2 elements?

a. int[][] items = {{1, null, null, null}, {2, 3, 4, 5}, {6, 7, null, null}}; b. int[][] items = {{1}, {2, 3, 4, 5}, {6, 7}}; c. int[][] items = {{1}, {2, 3, 4, 5}, {6, 7}, {}); d. int[][] items = {{1}, {4}, {2}};