A ________ maintains a connection to a database.
a) connection object
b) data reader
c) StreamReader
d) StreamWriter
e) Both c and d.
a) connection object
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Answer the following statements true (T) or false (F)
1. Communication support makes it possible for the user to communicate with the operating system. 2. The application program transparently requests operating system services through an application programming interface (API). 3. On many operating systems, the standard shell can be replaced or augmented by a custom shell. 4. A system operator or a user identifies the program to be launched by issuing one or more commands directly to the operating system. 5. A user communicates with a menu interface by typing brief, cryptic commands.
The ____ defines the point from which a transformation occurs.
A. point of origin B. crosshairs C. open sequence D. starting point
Which of the following key terms represents the principles and standards that guide our behavior toward other people?
A. Ethics B. Intellectual property C. Standards of living D. Security
In a B-tree, all internal nodes have at least ____ nonnull subtrees and at most m nonnull subtrees.
A. m / 2 B. ém / 2ù C. ëm / 2û D. m / 2 - 1