Question 1

The + operator allows you to build a string by repeating another string a given number of times.

Accepted Answer

A) True 
 B)False

Question 2

string is an example of a data type in Python.

Accepted Answer

A) True 
 B)False

Question 3

In Python, what data type is used to represent real numbers between -10^308 and 10^308 with 16 digits of precision?

Accepted Answer

A)   int
B)   float
C)   string
D)   arrayE) A) and B)
F) A) and C)

Question 4

What will be the return value of running the following function? chr(ord('T')  + 5) ?

Accepted Answer

A)   78
B)   	
C)   0x89
D)   "Y"E) A) and C)
F) None of the above

Question 5

When attempting to produce a correct program, what is the point of developing a test suite?

Accepted Answer

A)   To provide a small set of inputs as a test to verify that a program will be correct for all inputs.
B)   To modify the running program's variables and verify that the program will still function, even if the code changes.
C)   To test the outputs of a program against known values to verify that the math coprocessor is performing properly.
D)   To test the code syntax for possible errors such as undefined variables.E) C) and D)
F) None of the above

Question 6

1,500 is a valid integer literal in Python.

Accepted Answer

A) True 
 B)False

Question 7

You are working on a Python script that relies heavily on the cos and sin functions of the math module. As these are the only functions you require, what should you do to import only these functions, rather than the whole math module?

Accepted Answer

A)   import cos, sin
B)   import cos, sin from math
C)   import math.cos, math.sin
D)   from math import cos, sinE) None of the above
F) A) and B) D

Question 8

What function can you call inside of IDLE to show the resources of the math module, once it has been imported?

Accepted Answer

A)   show(math) 
B)   list(math) 
C)   dir(math) 
D)   resource(math) E) All of the above
F) C) and D)

Question 9

Testing is a deliberate process that requires some planning and discipline on the programmer's part.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following functions and expressions will convert the ASCII character "Z" to its numeric equivalent ASCII code?

Accepted Answer

A)   ord('Z') 
B)   chr('Z') 
C)   ord(chr('Z') ) 
D)   chr(ord('Z') ) E) A) and C)
F) None of the above

Question 11

You can use parentheses to change the order of evaluation in an arithmetic expression.

Accepted Answer

A) True 
 B)False

Question 12

How does the int function convert a float to an int?

Accepted Answer

A)   By rounding to the nearest whole number.
B)   By removing the fractional value of the number.
C)   By rounding up to the closest whole number.
D)   By rounding down to the closest whole number.E) A) and B)
F) A) and C)

Question 13

What statement accurately reflects the difference between the quotient operator and the division operator?

Accepted Answer

A)   The two operators are effectively the same, unless being carried out on strings.
B)   The quotient operator produces a float, while the division operator produces an integer.
C)   The quotient operator produces a float, while the division operator produces an integer + remainder.
D)   The quotient operator produces an integer, while the division operator produces a float.E) None of the above
F) A) and B) D

Question 14

What is the largest value of an int data type in the Python programming language?

Accepted Answer

A)   2,147,483,647
B)   4,294,967,294
C)   2,147,483,647^100
D)   The value is limited only by the memory of the host computer.E) A) and B)
F) A) and C)

Question 15

Text processing is by far the least common application of computing.

Accepted Answer

A) True 
 B)False

Question 16

In Python, a floating-point number must be written using scientific notation.

Accepted Answer

A) True 
 B)False

Question 17

What term describes the process of substituting a simple process for a complex process in a program to make the program easier to understand and maintain?

Accepted Answer

A)   refactoring
B)   abstraction
C)   inferring
D)   sublettingE) None of the above
F) B) and D)

Question 18

What must be done in order to concatenate a string and a float object?

Accepted Answer

A)   Nothing can be done, as the two data types cannot be converted to a compatible type.
B)   The string object must be converted to a float object via the float()  function.
C)   The float object must be converted to an integer object via the int()  function.
D)   The float object must be converted to a string object via the str()  function.E) A) and D)
F) C) and D)

Question 19

In the maintenance phase of the waterfall model, the parts of a program are brought together into a smoothly functioning whole, usually not an easy task.

Accepted Answer

A) True 
 B)False  False

Question 20

You are reviewing the code written by another programmer, and encounter a variable whose name is entirely in capital letters. What might you discern from this variable name?

Accepted Answer

A)   The variable is a symbolic constant.
B)   The variable is a reference variable.
C)   The variable is part of a program loop.
D)   The variable is used to store a dynamic value that is constantly changing.E) None of the above
F) A) and B)

Exam 2: Software Development Data Types and Expressions

The + operator allows you to build a string by repeating another string a given number of times.

Correct AnswerverifiedShow Answer

string is an example of a data type in Python.

Correct AnswerverifiedShow Answer

In Python, what data type is used to represent real numbers between -10^308 and 10^308 with 16 digits of precision?

Correct AnswerverifiedShow Answer

What will be the return value of running the following function? chr(ord('T') + 5) ?

Correct AnswerverifiedShow Answer

When attempting to produce a correct program, what is the point of developing a test suite?

Correct AnswerverifiedShow Answer

1,500 is a valid integer literal in Python.

Correct AnswerverifiedShow Answer

You are working on a Python script that relies heavily on the cos and sin functions of the math module. As these are the only functions you require, what should you do to import only these functions, rather than the whole math module?

Correct AnswerverifiedD

What function can you call inside of IDLE to show the resources of the math module, once it has been imported?

Correct AnswerverifiedShow Answer

Testing is a deliberate process that requires some planning and discipline on the programmer's part.

Correct AnswerverifiedShow Answer

Which of the following functions and expressions will convert the ASCII character "Z" to its numeric equivalent ASCII code?

Correct AnswerverifiedShow Answer

You can use parentheses to change the order of evaluation in an arithmetic expression.

Correct AnswerverifiedShow Answer

How does the int function convert a float to an int?

Correct AnswerverifiedShow Answer

What statement accurately reflects the difference between the quotient operator and the division operator?

Correct AnswerverifiedD

What is the largest value of an int data type in the Python programming language?

Correct AnswerverifiedShow Answer

Text processing is by far the least common application of computing.

Correct AnswerverifiedShow Answer

In Python, a floating-point number must be written using scientific notation.

Correct AnswerverifiedShow Answer

What term describes the process of substituting a simple process for a complex process in a program to make the program easier to understand and maintain?

Correct AnswerverifiedShow Answer

What must be done in order to concatenate a string and a float object?

Correct AnswerverifiedShow Answer

In the maintenance phase of the waterfall model, the parts of a program are brought together into a smoothly functioning whole, usually not an easy task.

Correct AnswerverifiedFalse

You are reviewing the code written by another programmer, and encounter a variable whose name is entirely in capital letters. What might you discern from this variable name?

Correct AnswerverifiedShow Answer

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D

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D

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False

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