Devry COMP 230 Final Exam

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1. (TCO 2) What is an example of a string constant?
1
“oops”
12432
O

2. (TCO 2) What is the assignment operator?
=
^
*
%

3. (TCO 2) The symbols used to describe the logic of a program are known as _____.
desk checking
pseudocode
flowcharts
code maps

4. (TCO 2) If a variable holds the value 12345, what is its data type?
Text
Integer
Floating point
String

5. (TCO 3) The logical AND operator can replace ____ in how it behaves.
a sequence of selection structures
nested selection structures
nested and sequenced selection structures
division

6. (TCO 3) Which pseudocode produces the same result as the following?
if customerAge > 65 OR customerAge = 65 then
discount = 0.10
else
discount = 0
endif
if customerAge >= 65 then
discount = 0.10
else
discount = 0
endif
if customerAge > 65 then
discount = 0
else
discount = 0.10
endif
if customerAge discount = 0.10
else
discount = 0
endif
if customerAge discount = 0
else
discount = 0.10
endif

7. (TCO 3) What logic operator could be used to replace the nested selection structure in this
pseudocode?
if empMedicalIns = “Y” then
if empDentalIns = “Y” then
print empIdNumber, empLastName, empFirstName
endif
endif
Dual-alternative selection
Logical AND
Logical OR
Logical NOT

8. (TCO 3) In order to have the most efficient program, which question should be asked first when
working with an AND decision?
The one that is less likely to be true
The one that is more likely to be true
The one that involves fewer comparisons
The one with the lower value

9. (TCO 3) If you are asked to write a program that prints a list of books that have fewer than 30 pages
and more than 100 pages, what type of decision structure would you use?
AND
OR
Join
Single alternative

10. (TCO 3) A ______ represents only one of two states, usually expressed as true or false.
case structure
logical AND
binary selection
Boolean expression

11. (TCO 4) How many times will the following loop execute?
rep = 0
while rep rep = rep + 1
loop
0
10
9
11

12. (TCO 4) Array subscripts are always ____.
large numbers
negative values
characters
integers

13. (TCO 4) When a loop-control variable is not altered during loop execution, a(n) _____ loop may result.
decrement
indeterminate
infinite
default

14. (TCO 4) A loop-control variable that is incremented a specific number of times is known as a(n) ____.
sentinel
trivial comparison
indefinite value
counter

15. (TCO 4) A countdown loop operates by the loop-control variable _____.
initializing
checking
decrementing
incrementing

16. (TCO 4) All of the elements in an array have the same ____.
subscript
memory location
name
data type

Page 2
1. (TCO 1) Which of the following Windows commands will shut down and restart the computer FileServer
in 2 minutes?
shutdown -r -m //FileServer -t 2
shutdown -r -m //FileServer -t 120
shutdown -r -m FileServer -t 2
shutdown -r -m FileServer -t 120

2. (TCO 1) The NETSH command that will set the IP address of the interface name NIC to a DHCP-supplied IP address is _____.
netsh interface set ip address “NIC” source=dhcp
netsh interface ip address “NIC” source=dhcp
netsh interface ip set address “NIC” source=dhcp
netsh interface set ip address source=dhcp “NIC”

3. (TCO 1) From a 32-bit Windows CLI, the command used to open a new CLI window is _____.
command
cmd
start
prompt

4. (TCO 1) Which one of the following Windows NET commands will allow other computers to access the
C:Data directory under the share name UserData?
NET USE UserData=C:Data
NET SHARE UserData=C:Data
NET USE C:Data = UserData
NET SHARE C:Data=UserData

5. (TCO 5) What statement is used to indicate the end of a function?
Stop
Return
End
Done

6. (TCO 5) What variable scope is preferable?
Implicit
Global
Local and global
Local

7. (TCO 5) When writing named constant identifiers, it is a common convention to ______.
use mixed-case letters
use only lower-case letters
Named constants do not have identifier names.
use only upper-case letters

8. (TCO 5) What of the following would most likely be a named constant?
x
taxRate
isFinished
TAX_RATE

9. (TCO 6) The following command opens a text file in VBScript.
Set file = fso.OpenTextFile(“C:DataCustData.txt”, ?, ??, ???)
To open a file for writing, the value of ? must be _____.
1
2
True
False

10. (TCO 6) Once you have a file selected with file = fso.GetFile(“C:DataFile.dat”), what command will
allow you to access the file attributes?
file.Attrib
fso.Attributes
file.Attributes
fso.Attrib

11. (TCO 6) The following command opens a text file in VBScript.
Set file = fso.OpenTextFile(“C:DataCustData.txt”, ?, ??, ???)
To ensure that the file is formatted as ASCII instead of as Unicode, the value of ??? must be _____.
0
-1
2
-2

12. (TCO 6) The following command opens a text file in VBScript.
Set file = fso.OpenTextFile(“C:DataCustData.txt”, ?, ??, ???)
To open a file for reading, the value of ? must be _____.
1
2
True
False

13. (TCO 7) The general syntax of an SQL select statement is _____.
Select–From–Where
Get–Date–Where
Select–Update–When
Select–Condition—Table

14. (TCO 7) The questions that cause the database software to extract the appropriate records from a
table and specify the fields to be viewed are called ____.
reports
keys
queries
indexes

15. (TCO 7) What is the name for a column that uniquely identifies a record?
Primary key
Unique key
Foreign key
Table key

16. (TCO 7) What is the name for a unique key that is constructed from multiple columns?
Primary key
Compound key
Foreign key
Candidate key

Page 3

1.  (TCO 1) Write the Windows CLI commands that will clear the screen; turn off command echo; and display the current IP address, subnet mask, and default gateway.

2.  (TCO 1) Write the Windows CLI NET commands that will turn the Spooler service OFF and then ON.

3. (TCO 2) Write the VBScript code lines that define a constant TAXRATE that is 25%, a variable basePay that is $1000, and a variable bonusPay that is $500. Calculate the net pay, and assign that value to netPay. Then, calculate the taxes, and assign that value to taxWithheld.

4. (TCO 3) Given the variable age, write the VBScript code that will decide whether the age is of a teenager or is not of a teenager. Display the message “The value of age is a Teenager” or “The value of age is NOT a Teenager,” depending on the value of the age.

5. (TCO 4) Write the VBScript code that initializes all the variables in the umArray(100) to the value numArray(0)=1, numArray(1)=2,&#-123;,numArray(100)=101

6. (TCO 5) Write a VBScript procedure (or subroutine) called Swap(ByRef num1,ByRef num2) that accepts two number variables by reference and exchanges the two values whereby num1 is assigned the original value of num2, and num2 is assigned the original value of num1.

7.  (TCO 6) Write the VBScript code that defines the Scripting.FileSystemObject and the file C:DataDataFile.txt for writing. Make sure that the file will be created if it doesn’t already exist, and ensure that the format is ASCII.

8. (TCO 7) Assuming that you are connected to a database called Computers.mdb with the fields Computer, Hostname, Room_Num, CPU_Type, Num_CPUs, Bit_Size, OS_Type, Memory, and HDD_Size, write the SQL Query String sqlStr such that the fields Computer, Hostname, and CPU_Type will be displayed for all the records that indicate that CPU_Type is “AMD” and the Bit_Size is 64. The returned records should be sorted by Hostname. (Points : 11)