The data-transfer rate for an optical disc is measured in ____ per second and refers to the speed at which massive amounts of data can be read from the disc.
A. kilobytes
B. megabytes
C. gigabytes
D. terabytes
Answer: B
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A zone transfer occurs over which of the following ports?
A. TCP 53 B. UDP67 C. UDP123 D. TCP 25
In a(n) ____________________ network, all data messages are transmitted using fixed-sized packages, called packets, and no unique, dedicated physical path is established to transmit the data packets across the subnetwork.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements is false?
a. An exception indicates a problem that occurs while a program executes. b. Exception handling enables you to create fault-tolerant programs that can resolve (or handle) exceptions—in many cases, this allows a program to continue executing as if no problems were encountered. c. The catch block contains the code that might throw an exception, and the try block contains the code that handles the exception if one occurs. d. Inside the catch block, you can use the parameter’s identifier to interact with a caught exception object.
Which of the following code segments displays each element in an Integer array named intValues without using an index to reference the items in the array.
a. ```Dim intCount As Integer For intCount = 0 To (intValues.Length – 1) MessageBox.Show(intValues(intCount).ToString) Next intCount ``` b. ```For intCount = 1 To IntValues.Length MessageBox.Show(intValues(intCount).ToString) Next ``` c. ```For Each strElement As String In intValues MessageBox.Show(strElement) Next ``` d. ```For Each intNumber as Integer In intValues MessageBox.Show(intNumber.ToString) Next ```