4QFPy

You are tasked with creating an appropriate structure to store student names. The client would like the ability to pass in a name and wants to be sure that there can't be two students with the same name. Which would be the most suitable to use? Mark the correct answer(s)

• Dictionary

• List containing tuples

• Nested list

• Set

Which list function returns the number of items contained in the list?

Mark the correct answer(s)

• len(listname)

• listname.len()

• listname.length()

• length(listname)

Which of the following modes of file reading would be most appropriate for a program designed to update the contents of a .txt file without making any new deletion to the file. Mark the correct answer(s)

• a

• re

• r

• w

Which collection structure allows items that are ordered and changeable and contain duplicate values? Mark the correct answer(s)

• Set

• List

• Tuple

• Dictionary

A programmer accidentally attempts convert the type of an object and receives the error: "int() cannot convert 'dog' into an integer". What error was likely raised in this instance? Mark the correct answer(s)

• Value Error

• Type Error

• Name Error

• Attribute Error

Which of the following methods allows multiple items from a string to be added as individual elements to an existing list? Example:

list_one = [1,2,3]

string_one = 'abc'

list_one.method(string_one)

list_one = [1, 2, 3, 'a', 'b', 'c']

Mark the correct answer(s)

• extend()

• pop()

• insert()

• append()

What is the output of the following code snippet?

careful = 0

second_chance = True

if careful: print('I got a second chance at this!')

elif second_chance: print('I am not being careful...')

else: print('I am being careful!')

Mark the correct answer(s)

• 'I am being careful!'

• The execution will not enter the if-else statement.

• 'I am not being careful...'

• 'I got a second chance at this!'

Which of the following best describes 'sklearn'? 'sklearn' (scikit-learn) provides Machine Learning operations and it contains simple and efficient tools for predictive data analysis? Mark the correct answer(s)

• a module

• an environment

• a package

• a suite

A programmer accidentally attempts to call a function or use an operator on something of the incorrect type. What error is likely to be raised in this instance?

Mark the correct answer(s)

• Attribute Error

• Value Error

• Name Error

• Type Error

Which statement would read the entire file contents?

Mark the correct answer(s)

• fin.readline()

• fin.readall()

• fin.read()

• fin.readin()