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D278 scripting and programming PA
A car drove 200 miles using 10 gallons of fuel. Which operation should be used to
compute the miles per gallon, which is 20?
divison
3 multiple choice options
Which operator should be used to determine if a number is evenly divisible by 5?
3 multiple choice options
A variable should hold a person's height in meters. Which data type should the
variable be?
float
3 multiple choice options
A variable should hold the names of all past U.S. presidents. Which data type
should the variable be?
string array
3 multiple choice options
A program uses the number of seconds in a minute in various calculations. How
should the item that holds the number of seconds in a minute be declared?
constant integer secondsPerMinute
3 multiple choice options
A program determines if a user's age is high enough to run for U.S. president.
The minimum age requirement is 35. How should the item that holds the minimum
age be declared?
constant integer minAge
3 multiple choice options
Given integer x
= 3 and integer y
= 5. What is the value of the expression ( x
y
3 multiple choice options
Given float x
= 10.2 and float y
= 1.0. What is the value of the expression x
y
3 multiple choice options
What kind of operator is the == in the expression i
equality
3 multiple choice options
What is the purpose of parentheses () in a programming expression?
to group expressions
3 multiple choice options
Given float x
= 3.0. Which expression evaluates to 2.0?
x
3 multiple choice options
Which expression represents all the values of x, when x is the age ranging from
18 to 24 years old?
x
= 18) and ( x
3 multiple choice options
Which data type is used for items that are measured in length?
float
3 multiple choice options
Which data type should be used to keep track of how many planes are in a
hangar?
integer
3 multiple choice options
What does a programmer do first to use an existing programming library?
include the library
3 multiple choice options
What relationship is common among a programming library's functions?
functions all relate to the same purpose
3 multiple choice options
What is an advantage of using a programming library?
the code has already been tested
3 multiple choice options
Which language is dynamically typed?
Python
3 multiple choice options
Which language is not built on object-oriented design principles?
C
3 multiple choice options
A language substantially supports a programmer creating items like person,
teacher, and students. Each item has internal data and some operations. Which
characteristic describes that language?
object-oriented
3 multiple choice options
A programmer wants a compiler to report an error if an integer variable is
assigned with a string. Which kind of language should the programmer use?
statically typed
3 multiple choice options
A language uses tags around text to indicate how that text should be formatted.
Which characteristic describes a language having such tags?
markup
3 multiple choice options
What is a characteristic of a compiled language?
converts to machine language before running
3 multiple choice options
What is the return value of a function?
output of a function
3 multiple choice options
A program should continue accepting input numbers, adding each to a sum, until
a 0 is input. Which control structure should be used?
while loop
3 multiple choice options
Joe is building an online game. He wants to provide a riddle and have the player
guess the answer. The game needs to prompt the user to enter the answer, check
to see if it the input provided does not match the correct answer, and continue
prompting the user until the answer entered matches the correct answer.
Which control structure supports Joe’s needs?
do-while loop
3 multiple choice options
What is put to output by the following pseudocode?
x = 3
do
Put x to output
Put " " to output
x = x - 1
while x > 0
3 multiple choice options
A programmer has developed the following code:
count = 0
while count is less than 5:
print 'Hello'
What is the result of implementing this code?
'Hello' will print indefinetly
3 multiple choice options
What is the loop expression in the following pseudocode?
i = 0
while i < 20
Put i to output
i = i + 1
i < 20
3 multiple choice options
What is the loop variable initialization in the following pseudocode?
y = 0
s = 100.
while y < 10
s = s + (s * 5.0)
y = y + 1
y=
3 multiple choice options
Which phase of a waterfall approach would create a sequence diagram that
specifies the required order of events between completed program components?
design
3 multiple choice options
Which phase of an agile approach would define a hypothesis to find a problem in
a program?
testing
3 multiple choice options
Which phase of an agile approach would create an executable program?
implementation
3 multiple choice options
Which phase of an agile approach would create a list of components needed to
build an online auction site?
design
3 multiple choice options
Which phase of a waterfall approach defines a program's goals?
analysis
3 multiple choice options
After a programmer is done writing a program, another person runs the program
hundreds of times, each time with different input, checking that each run yields
correct output. Which phase of a waterfall approach is the person carrying out?
testing
3 multiple choice options
A programmer decides a program should convert U.S. units to metric units and
decides to write the program in C++ using several functions. Which phase of a
waterfall approach is occurring when the programmer starts writing the program?
implementation
3 multiple choice options
A company has a new project it wishes to implement to track and analyze
employee and customer interactions. The company leadership determines that
the system should support direct data entry as well as automated data capture of
phone calls and emails. Which phase of the waterfall process is occurring?
analysis
3 multiple choice options
A programmer shows a program's first version to a customer. The customer
provides feedback, which causes the programmer to change the goals of the
program. In which phase of an agile approach are goals changed based on
customer feedback?
analysis
3 multiple choice options
A programmer shows a program's first version to a customer. Based on
feedback, the programmer begins writing a second version of the program. In
which phase of an agile approach does the writing of a second version of the
program occur?
implementation
What does the following algorithm accomplish?
x = Get next input
if x == –
Put "Goodbye" to output
outputs Goodbye when user types -
3 multiple choice options
What does an output of 1 indicate for the following algorithm running on a five-
element list of integers?
i = 0
x = 0
while i < 5
if list[i] < 0
x = 1
i = i + 1
Put x to output
at least one integer is negative
3 multiple choice options
When should a programmer develop an algorithm to solve a problem?
before writing a program to solve the problem
3 multiple choice options
Which text represents an algorithm?
insert key, turn key, open door
3 multiple choice options
Which text represents an algorithm?
Shake bulb; if it rattles, replace it.
3 multiple choice options
An algorithm should output "OK" if a list's numbers are all non-zero, else the
output is "Not OK." Which test is a valid test of the algorithm?
Input 99, 0, 5. Ensure output is "Not OK."
3 multiple choice options
What is put to output by the following flowchart, if the input is 17?
OK
3 multiple choice options
What is put to output by the following flowchart, if the input is 3 5 -1?
3 multiple choice options
What is the purpose of the following class diagram?
Depicts the Employee class' name, data members, and functions
3 multiple choice options
What is the purpose of a use case diagram, such as the following diagram?
Describes how a user can interact with a program
3 multiple choice options
Which elements are characteristic of a class diagram?
System's classes, attributes, and methods and their features, constraints, and
relationships
3 multiple choice options
Review the following use case diagram: what does a use case diagram do
Provides an overview of several use cases
3 multiple choice options
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