Surprise browser windows that appear automatically when you visit a Web site are known as _______________.
Fill in the blank(s) with the appropriate word(s).
pop ups
correct
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Vector graphic files may have an extension _____.
A. .jpg B. .tiff C. .wmf D. .bmp
Assume that the rows of a table, R, are stored in an unsorted heap file, F, having M pages.
(a) If no index is available, how many I/O operations on average will be required to com- pute the result of a SELECT statement with WHERE condition a = 100, where a is an attribute of R? (b) If a secondary static hash index on attribute a is now added for accessing F, how would you calculate the cost of the query in (6a)? (c) What is a clustered index? Is the index of (6b) clustered? (d) Extendable hashing uses the concepts of global depth and local depth.
To break a report into smaller sections, subtotals or groups may be added
Indicate whether the statement is true or false
Queries are modified in Datasheet view
Indicate whether the statement is true or false