All values stored in a Python dictionary must be unique.

True

False

$2$

A dictionary key must be a character string.

True

False

$3$

A dictionary is designed for efficient value retrieval.

True

False

$4$

Using square brackets to retrieve a value will result in a KeyError if the key is not in the dictionary.

True

False

$5$

A for loop can be used to traverse a dictionary's keys, but not its values.

True

False

$6$

The items method returns a list of key$/$value tuples for all entries in a dictionary.

True

False