Which function would you use to get the number of elements in a dictionary? |
len |
What method can be used to convert a tuple to a list? |
list |
What is the number of the first index in a list dictionary? |
dictionary is not indexed by number |
What would be the value of the variable list after the execution of the following code? list = [1, 2] list = list * 3 |
[1, 2, 1, 2, 1, 2] |
What will be assigned to s_string after the execution of the following code? special = ‘1357 Country Ln.’ s_string = special[ :4] |
‘1357’ |
What method can be used to place an item in the list at a specific index? |
insert |
The primary difference between a tuple and list is that ________. |
once a tuple is created, it cannot be changed |
What is the correct structure for creating a dictionary of month names to be accessed by month numbers? |
{ 1 : ‘January’, 2 : ‘February’, 3 : ‘March’ } |
What would you use if an element is to be removed from a specific index? |
del statement |
What would be the value of the variable list2 after the execution of the following code? list1 = [1, 2, 3] |
[1, 2, 3] |
Which list will be referenced by the variable number after the execution of the following code? |
[0, 2, 4, 6, 8] |
Which method would you use to determine whether a substring is present in a string? |
find(substring) |
What would be the result of the following code? ages = {‘Aaron’ : 6, ‘Kelly’ : 3, ‘Abigail’ : 1} |
KeyError |
What is the value of the variable phones after the execution of the following code? phones = {‘John’: ‘5555555’, ‘Julie’: ‘7777777’} phones[‘John’] = ‘1234567’ |
{‘John’: ‘1234567’, ‘Julie’ : ‘7777777’} |
What is the value of the variable string after the execution of the following code? string = ‘Hello’ string += ‘ world’ |
‘Hello world’ |
What would be the value of the variable list after the execution of the following code? list = [1, 2, 3, 4] list[3] = 10 |
[1, 2, 3, 10] |
Which statement would you use to delete an existing key-value pair from a dictionary? |
del |
In order to avoid KeyError exceptions, you can check whether a key is in the dictionary using the ________ operator. |
in |
What method or operator can be used to concatenate lists? |
+ |
What method can be used to convert a list to a tuple? |
tuple |
Which method would you use to return the value associated with a specified key and remove that key-value pair from the dictionary? |
pop |
True/False: Lists are dynamic data structures such that items may be added to them or removed from them. |
true |
What is the value of the variable string after the execution of the following code? string = ‘abcd’ |
‘ABCD’ |
Which of the following does not apply to sets? |
All the elements must be unique—no two elements can have the same value. |
True/False: A list cannot be passed as an argument to a function. |
false |
In a dictionary, you use a(n) ________ to locate a specific value. |
key |
You created the following dictionary relationships = {‘Jimmy’:’brother’}. You then executed the following code, and received a KeyError exception. What is the reason for the exception? relationships[‘jimmy’] |
string comparisons are case sensitive so ‘jimmy’ does not equal ‘Jimmy’ |
What is the process used to convert an object to a stream of bytes that can be saved in a file? |
pickling |
What will be assigned to the string variable even after the execution of the following code? special = ‘0123456789’ even = special[0:10:2] |
‘02468’ |
True/False: By default, the sort method rearranges the elements of a list so they appear in ascending or descending order. |
false |
What will be assigned to the string variable pattern after the execution of the following code? i = 3 pattern = ‘z’ <b> (5</b>i) |
‘zzzzzzzzzzzzzzz’ |
When working with multiple sets of data, one would typically use a ________. |
nested list |
True/False: Indexing starts at 1, so the index of the first element is 1, the index of the second element is 2, and so forth. |
false |
What are the data items in the list called? |
elements |
True/False: The remove method removes all occurrences of the item from a list. |
false |
What will be assigned to s_string after the execution of the following code? special = ‘1357 Country Ln.’ s_string = special[4: ] |
‘ Country Ln.’ |
What are the valid indexes for the string ‘New York’? |
0 through 7 |
What would be the value of the variable list2 after the execution of the following code? list1 = [1, 2, 3] list2 = list1 list1 = [4, 5, 6] |
[1, 2, 3] |
Which list will be referenced by the variable list_string after the execution of the following code? list_string = ’03/07/2008′ list_string = list_string.split(‘/’) |
[’03’, ’07’, ‘2008’] |
What method can be used to add a group of elements to a set? |
update |
Chapters 7,8 and 9
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