Projects Quiz

// question 1 of 10

What is the correct way to check if a key exists in a dictionary?

if key == my_dict if key in my_dict if my_dict.has(key)

// question 2 of 10

What does the strip() method do?

Splits the string into a list Removes all spaces from the string Removes leading and trailing whitespace

// question 3 of 10

What is the purpose of newline="" when writing a CSV file?

Prevents double newlines between rows Removes all newlines from content Adds a blank line between rows

// question 4 of 10

What does Counter.most_common(2) return?

The two smallest counts The two largest values The two most frequent elements as (value, count) tuples

// question 5 of 10

What does the col_index reset mechanism do in ADFGVX transposition?

Sorts the columns alphabetically Counts the total number of characters Cycles through columns by resetting to 0 after the last column

// question 6 of 10

What does for key, value in my_dict.items() do?

Iterates over keys only Iterates over key-value pairs Iterates over values only

// question 7 of 10

What does Counter({'a': 3, 'b': 1}) represent?

'a' appears 3 times, 'b' appears once 3 counters named 'a' and 1 named 'b' A dict with 3 keys

// question 8 of 10

What does uuid.uuid4() generate?

A random universally unique identifier A sequential integer ID A timestamp-based string

// question 9 of 10

What does paws_dict[id][5] = "adopted" do in the Safe Paws project?

Removes the animal from the dictionary Updates the status field of the animal with the given id Adds a new animal to the dictionary

// question 10 of 10

What is a key advantage of using an incremental integer ID over a timestamp ID?

It is always unique It is human-readable and easy to reference It is faster to generate