Excel displays the result of a formula in its cell. You can display the formula itself by using the combination of Ctrl and ` (accent) keys at the same time
Indicate whether the statement is true or false
TRUE
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How can you cause gawk (not awk or mawk) to neatly format—that is, “pretty print”—a gawk program file? (Hint: See the gawk man page.)
What will be an ideal response?
Describe an implementation of the method insertfor ArrayListthat places the entry at position 1 in the last element of the array, the entry at position 2 in the next-to-last element, and so on.
What will be an ideal response?
Which of the following fields in an e-mail header can be used to sort messages according to the sender?
A. Date B. Subject C. From D. To
Assume that at most 5 tuples in s match each tuple in r.
Compute the cost of 
using the following methods:
(a) Nested loops
(b) Block-nested loops
(c) Index-nested loops with a hash index on B in s. (Do the computation for both clustered and unclustered index.)
where r occupies 2,000 pages, 20 tuples per page, s occupies 5,000 pages, 5 tuples per page, and the amount of main memory available for block-nested loops join is 402 pages.