Match the following terms with their descriptions:I.Action queryII.Append queryIII.Delete queryIV.Update queryV.Crosstab queryA.Adds records from a source table to a destination tableB.Changes data valuesC.Removes recordsD.General term for any query that changes dataE.Displays trends over time
Fill in the blank(s) with the appropriate word(s).
D, A, C, B, E
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Which of these remarks about formal parameters is correct?
a) A formal parameter is a kind of place holder that is filled with the argument at the time of call to the function. b) A call-by-value formal parameter is a global variable that is initialized to the value set just before the function is called. c) A call-by-reference formal parameter is modeled on a substitution mechanism. The argument should be an expression, not a variable, since there is never a need to assign such a variable. d) The & (ampersand) character is used to indicate call-by-reference. This is done by placing the & after the type name which is followed by the parameter name in the definition of the parameter in the function header. e) The argument corresponding to a call-by-value parameter cannot be changed by anything that happens in the function call.
The simplest implementations of sets are subclasses of which other class?
A. bags B. queues C. stacks D. lists
Because Voice over IP (VoIP) data is transmitted over a network as data packets much like any other data, it is susceptible to most of the attacks that affect regular data transmission.
a. true b. false
IEEE has approved two different versions of Gigabit Ethernet: 1000BaseT and ____________________.
Fill in the blank(s) with the appropriate word(s).