Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Which
of the following loop structures always executes at least once? a. | pretest | b. | posttest | c. | top-driven | d. | None of these | | |
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2.
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According to the following code how many times will the loop be
executed?
Dim intStart, intStop, intStep, intNumber as
integer
intStart = 1
intStop =
8
intStep = 2
For intNumber = intStart to intStop Step
intStep
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Next
intNumber
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3.
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The
symbol used to identify a decision on a flowchart is the _____ symbol. a. | diamond | b. | rectangle | c. | oval | d. | parallelogram | e. | hexagon | | |
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4.
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The
following instruction is an example of a(n) _____.
intNumber =
intNumber + Amount a. | Accumulator | b. | Counter | c. | Initializer | d. | None of
these | | |
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5.
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If
the programmer wants to protect the original variable data the programmer should pass the data by
_____. a. | reference | b. | value | c. | both a & b
will protect the data | d. | None of these | | |
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6.
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When
passing data to a user-defined function it may be passed by _________. a. | reference | b. | value | c. | Both reference
and value | d. | None of these. | | |
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7.
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To
insert a pet type of "parakeet" into a ListBox collection called PetsListBox at the last
slot when "dog", "cat", and "horse" already exist would be
___________. a. | Me.PetsListBox.Items.Insert(4, "parakeet") | b. | Me.PetsListBox.Items.Insert(0, "parakeet") | c. | Me.PetsListBox.Items.add("parakeet") | d. | None of
these | | |
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8.
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The
____________ method allows a programmer the control to display a form object on the
screen. a. | ShowScreen(
) | b. | ShowDialog(
) | c. | ShowPanel(
) | d. | None of
these | | |
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9.
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To
determine how a variable is passed you must look at the _____ statement. a. | Call | b. | Procedure Footer | c. | Dim | d. | Procedure Header | e. | None of
these | | |
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10.
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The
number of characters contained in a string can be determined by using a string's _____
property. a. | Width | b. | Length | c. | NumChars | d. | None of these | | |
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11.
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The
data for salary is entered with both dollar symbol and space; which instructions will remove the
dollar symbol? a. | TrimStart("$") | b. | Trim("$") | c. | TrimEnd("$") | d. | both a and b | e. | None of
these | | |
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12.
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Which
of the following will remove the trailing blanks from a variable strFirstName? a. | LTrim(strFirstname) | b. | RTrim(strFirstName) | c. | Remove.Blanks(strFirstname) | d. | None of these | | |
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13.
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Assume that a textbox named PhoneNumberTextBox appears on the form, and contains the
phone number 414-555-5555. What value will display for the length of the phone number text
box?
a. | 10 | b. | 12 | c. | 18 | d. | None of these | | |
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14.
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Which
of the following methods will allow data to be added to an existing data file? a. | OpenText | b. | CreateText | c. | AppendText | d. | None of these | | |
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15.
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Which
is the appropriate function when ten blank spaces need to be inserted? a. | Blanks(10) | b. | Space(10) | c. | Insert(10) | d. | None of these | | |
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16.
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The
method that most easily accommodates right justification of data is the _____
method. a. | Space | b. | PadLeft | c. | PadRight | d. | None of these | | |
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17.
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Which
of the following system date examples will display just the current month? a. | Today.Month | b. | Today | c. | Today.ToStringMonth("MMMM") | d. | None of
these | | |
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18.
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To
print data on the printer you use the _____ method. a. | e.Print.Graphics | b. | e.Graphics.Print | c. | e.Graphics.DrawString | d. | None of these | | |
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19.
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The
instruction required to open a data file for input called report.txt is __________. a. | objStreamReader=System.IO.File.OpenText("report.txt") | b. | System.IO.File.Exists("report.txt") | c. | objStreamReader.ReadLine() | d. | objStreamReader.Close() | e. | None of
these | | |
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20.
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Which
of the following correctly represents the hierarchy of terms from largest aggregate of data to
smallest? a. | file, field,
record | b. | field, record, file | c. | file, record,
field | d. | record, file, field | | |
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21.
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To
create a record structure for a file layout you would use the _____ statement. a. | record | b. | structure | c. | define | d. | field | | |
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22.
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The
number of bytes in a record structure can be determined by using the _____ function. a. | width | b. | len | c. | type | d. | None of these | | |
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23.
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In
the statement FilePut(4, udtStudent, 3), what record number is being written?
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24.
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Which
of the following is the first step in the typical use of a random file in a program? a. | Declare a
record | b. | Open a file | c. | Read or write
data as necessary from the file | d. | Close a file | e. | Create the
record structure | | |
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25.
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A
random data file record layout might be more easily identified if the user assigned name contained
which of the following phrases? a. | Random | b. | Struc | c. | Rand | d. | None of these | | |
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26.
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Consider the following array. What is the subscript value for Lake
Huron?
Huron | Ontario | Michigan | Erie | Superior | | | | | |
a. | 1 | b. | 2 | c. | 3 | d. | 4 | e. | None of the these | | |
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27.
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The
following statement will declare an array that has how many elements?
Dim strLakes(5)
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28.
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A
local array can be declared using the accessibility keyword _____. a. | Local | b. | Dim | c. | Private | d. | None of
these | | |
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29.
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To
arrange the elements in an array in ascending order you use the _____ method. a. | Array.Arrange(
) | b. | Array.Reverse(
) | c. | Array.Sort(
) | d. | None of
these | | |
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30.
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If an
array is sorted in descending order, what index value is the largest element
located? a. | 0 | b. | 1 | c. | n | d. | n-1 | e. | None of these | | |
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Essay
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31.
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Differentiate between a pretest and posttest loop structure.
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32.
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Explain the difference between passing data by value and by reference.
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33.
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Explain how records in a sequential data file are retrieved and
processed.
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34.
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Why
is it necessary to confirm with the user his or her intent to initialize the data file?
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35.
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Explain the difference between LTrim and RTrim.
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