😁4👍2❤1
In a Python program, a control structure:
Anonymous Quiz
32%
Manages the input and output of control characters
16%
Defines program-specific data structures
43%
Directs the order of execution of the statements in the program
10%
Dictates what happens before the program starts and after it terminates
👍1
Which of the following are true of Python dictionaries?(can be multiple correct answers)
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26%
Items are accessed by their position in a dictionary
67%
Dictionaries are mutable
22%
All the keys in a dictionary must be of the same type
67%
Dictionaries are accessed by key
45%
Dictionaries can be nested to any depth
29%
A dictionary can contain any object type except another dictionary
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Code snippet:
x = 10.0
y = (x < 100.0) and isinstance(x, float)
After these are executed, what is the value of y?
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10%
1
13%
None
61%
True
12%
False
5%
0
Code snippet:
d = {'foo': 1, 'bar': 2, 'baz': 3}
while d:
print(d.popitem(), end = '<->')
print('Done.')What is the output of the code snippet above?
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21%
Done.
8%
foo<->bar<->baz
6%
baz<->bar<->foo
18%
baz<->bar<->foo<->Done.
15%
('foo', 3)<->('bar', 2)<->('baz', 1)<->Done.
21%
('baz', 3)<->('bar', 2)<->('foo', 1)<->Done.
11%
The snippet doesn’t generate any output
What will be the value of the i variable when the while loop finishes its execution?
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57%
1
21%
0
7%
2
15%
the variable becomes unavailable
The simplest possible class definition in Python can be expressed as
Anonymous Quiz
17%
class X: return
18%
class X: { }
33%
class X:
32%
class X: pass
Python strings have a property called “immutability.” What does this mean?
Anonymous Quiz
10%
Strings in Python can be represented as arrays of chars
69%
Strings in Python can’t be changed
12%
Strings can’t be divided by numbers
10%
You can update a string in Python with concatenation
Which of the following will run without errors?
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55%
round(45.8)
10%
round(6352.898,2,5)
30%
round()
5%
round(7463.123,2,1)
Code snippet:
def example(a):
a = a + '2'
a = a*2
return a
print(example("hello"))
What will be the output of the code snippet above?
Anonymous Quiz
28%
cannot perform mathematical operation on strings
12%
hello2
5%
hello4
54%
hello2hello2
What is the output of the code snippet above?
Anonymous Quiz
4%
0
22%
2.0
38%
2
7%
x
29%
SyntaxError