Online Access Free PCEP-30-02 Practice Test

Assuming that the phonc_dir dictionary contains namemumber pairs, arrange the code boxes to create a valid line of code which retrieves Martin Eden's phone number, and assigns it to the number variable.

Correct Answer:

Explanation:

number = phone_dir["Martin Eden"]
This code uses the square brackets notation to access the value associated with the key "Martin Eden" in the phone_dir dictionary. The value is then assigned to the variable number. A dictionary is a data structure that stores key-value pairs, where each key is unique and can be used to retrieve its corresponding value. You can find more information about dictionaries in Python in the following references:
* [Python Dictionaries - W3Schools]
* [Python Dictionary (With Examples) - Programiz]
* [5.5. Dictionaries - How to Think Like a Computer Scientist ...]

Drag and drop the literals to match their data type names.

Correct Answer:

Explanation:
One possible way to drag and drop the literals to match their data type names is:
* STRING: "All The King's Men"
* BOOLEAN: False
* INTEGER: 42
* FLOAT: -6.62607015E-34
A literal is a value that is written exactly as it is meant to be interpreted by the Python interpreter. A data type is a category of values that share some common characteristics or operations. Python has four basic data types: string, boolean, integer, and float.
A string is a sequence of characters enclosed by either single or double quotes. A string can represent text, symbols, or any other information that can be displayed as text. For example, "All The King's Men" is a string literal that represents the title of a novel.
A boolean is a logical value that can be either True or False. A boolean can represent the result of a comparison, a condition, or a logical operation. For example, False is a boolean literal that represents the opposite of True.
An integer is a whole number that can be positive, negative, or zero. An integer can represent a count, an index, or any other quantity that does not require fractions or decimals. For example, 42 is an integer literal that represents the answer to life, the universe, and everything.
A float is a number that can have a fractional part after the decimal point. A float can represent a measurement, a ratio, or any other quantity that requires precision or approximation. For example,
-6.62607015E-34 is a float literal that represents the Planck constant in scientific notation.
You can find more information about the literals and data types in Python in the following references:
* [Python Data Types]
* [Python Literals]
* [Python Basic Syntax]

Assuming that the following assignment has been successfully executed:

Which of the following expressions evaluate to True? (Select two expressions.)

• A.the_list. index {'1'} -- 0
• B.the_List.index {"1"} in the_list
• C.1.1 in the_list |1:3 |
• D.len (the list [0:2]} <3

What is the expected result of the following code?

• A.2
• B.5
• C.The code will cause an unhandled
• D.1

What happens when the user runs the following code?

• A.The program outputs one asterisk ( * ) to the screen.
• B.The program outputs three asterisks ( *** )to the screen.
• C.The program outputs five asterisks ( ***** ) to the screen.
• D.The program enters an infinite loop.