The _________ transfer encoding, also known as radix-64 encoding, is a common one for encoding arbitrary binary data in such a way as to be invulnerable to the processing by mail-transport programs.
Fill in the blank(s) with the appropriate word(s).
base64
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Estimate the number of page transfers needed to compute r s using a sort-merge join, assuming the following: A=B
1. The size of r is 1000 pages, 10 tuples per page; the size of s is 500 pages, 20 tuples per page. 2. The size of the main memory bu?er for this join computation is 10 pages. 3. The Cartesian product of matching tuples in r and s (see Figure 10.7) is computed using a block-nested loops join. 4. r.A has 100 distinct values and s.B has 50 distinct values. These values are spread around the ?les more or less evenly, so the size of ?A=c(r), where c r.A, does not vary much with c.
By restricting access to the tables in Datasheet view, the integrity of the data and structure of the data is not at risk
Indicate whether the statement is true or false
____ devices can withstand being dropped or submerged into water.
A. Malleable B. Partitioned C. Semirugged D. Flexible
In what circumstances is multiprogramming undesirable?
What will be an ideal response?