The occasional user should have ________% of the display screen containing useful information?
A) 30
B) 40
C) 50
D) 70
E) 90
C) 50
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Which of the following errors will occur when attempting to assign a real value to an integer variable?
a. integer value error b. type mismatch error c. conversion error d. assignment error
There is only one parameter for an overloaded operator function (for a binary operator) when it is placed into a struct definition because:
A. there is only one return value B. the left operand is not an object, so it must be passed into the parameter C. if there were two parameters, the compiler would not know which one to use D. the overloaded operator function is called for the operand on the left (which must be an object of a struct), so the right operand is passed in as a single parameter
The total cost of ownership of a personal computer is primarily the cost of the hardware part of the system.
Answer the following statement true (T) or false (F)
Answer the following statements true (T) or false (F)
1. It is possible (and can be useful) to keep multiple index files on a single data file. 2. Use of an index file increases the number of required block accesses of the data file, especially for adds and removals. 3. When external hashing is used, you hash the index file instead of the data file 4. It is not possible to organize an index file as an external 2-3 tree. 5. In an external environment, the advantage of keeping a search tree short far outweighs the disadvantage of performing extra work, such as comparisons, at each node.