When you change the height of a photo, PowerPoint automatically changes the width to maintain the photo's proportions between height and width.
Answer the following statement true (T) or false (F)
True
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____________________ is a popular format for static graphics and animations.
Fill in the blank(s) with the appropriate word(s).
Let there be an unclustered hash index on ProfId and assume that, as before, 5 Professor tuples ?t in one page, 10 Teaching tuples ?t in one page, and the cardinality of Teaching is 10,000. Estimate the cost of computing the above join using index-nested loops and block-nested loops with a 51-page bu?er.
Consider the join Professor Id=ProfId Teaching used in the running example of Section 11.3. Let us change the statistics slightly and assume that the number of distinct values for Teaching.ProfId is 10,000 (which translates into lower weight for this attribute).
The last element is removed from the end of an array using the array_pop() function.
Answer the following statement true (T) or false (F)
Which file extension indicates a video file?
a. .bmp b. .mp3 c. .wmv d. .pdf