TEST

Question 1

\n digraph forces the print() function

Answer 1

Breaks the output line.

Question 2

Meaning of the keyword parameter

Answer 2

The argument’s name specified along with its value

Question 3

The value twenty point twelve times ten raised to the power of eight should be written as?

Answer 3

20.12E8

Question 4

The 0O prefix means that the number after it is denoted as.

Answer 4

Octal

Question 5

The ** operator

Answer 5

Performs exponentiation

Question 6

The result of the following division: 1/1

Answer 6

1.0 because the any time you use the divide by symbol it returns a floating point number.

Question 7

If you wanted to return 1

Answer 7

you would use 1 // 1

Question 8

The result of the / operator is always an integer value

Answer 8

false

Question 9

the result of the following expression:
1 // 2 * 3
zero -

floor division // ***

Answer 9

Left sided binding

Question 10

variable names are illegal

Answer 10

True

Question 11

The print() function can output values of
any number of arguments

Answer 11

(including zero)

Question 12

Output of the following snippet
x=1
y=2
z=x (1)
x=y (2)
y=z (1)
print(x,y)

Answer 12

2 1

Question 13

What is the output of the following snippet if the user enters two lines containing 2 and 4

x=input() 2
y=input() 4
print(x+y)

Answer 13

input always inputs string so it would need int if it wanted to be converted to integer so the output is.
24

Question 14

What is the output of the following snippet if the user enters the two lines 2 and 4

x=int(input) 2
y=int(input) 4
x=x//y 0 2 floor division 4
y=y//x 4 / 0
print(y)

Answer 14

code will cause a runtime error

Question 15

What is the output of the following snippent if user enters 2 and 4?

x=int(input()) .5
y=int(input()) 4
x=x/y
y=y/x
print(y)

Answer 15

8.0

Question 16

What is the output of the following snippet if the user enters two lines containing 11 and 4.

x=int(input())
y=int(input())
x = x % y 3
x = x % y 3 3 mod 4 is still 3
y = y % x 4 mod 3 == 1
print(y)

Answer 16

1

Question 17

What is the output of the following snippet if the user enters two lines containing 3 and 6.
x=input() string 3
y=int(input() 6
print(x*y)

Answer 17

outputs 333333

Question 18

What is the output of the following snippet
z = y = x = 1
print(x,y,z,sep=’*’)

Answer 18

111

Question 19

Output of the following snippet
x = 2 + 3 * 5.
print(X)

Answer 19

17.0

***Causes execution error because the variable X is never created.

Question 20

What is the output of the following snippet
x = 1 / 2 + 3 // 3 + 4 ** 2
print(x)

4 ** 2 = 16
3 floor division 3 == 1 17
1 / 2 = .5

Answer 20

17.5

Question 21

What is the output of the following snippet if the user enters two lines containing 2 and 4

x=int(input())  2
y=int(input())  4
print(x+y)      6

Answer 21

6

Question 22

An operator able to check whether two values are equal is

Answer 22

’==’

Question 23

The value eventually assigned to x is equal to:

x = 1
x = x == x

Answer 23

True

Question 24

How many stars will the following snippet send to the console.

i = 0
while i <= 3 :
i += 2
print(“*”)

Answer 24

2 stars are output

Question 25

How many stars will the following snippet send to the console. i = 0 while i <= 5 : i += 1 if i % 2 == 0: break print("*")

Answer 25

Only prints 1 stars

Question 26

How many hashes will the following snippets send to the console? for i in range(1): print("#") else: print("#")

Answer 26

prints 2 hashes

Question 27

How many hashes will the following snippet send to the console? var = 0 while var < 6: var += 1 if var % 2 == 0: continue print("#")

Answer 27

3 hases

Question 28

How many hases will the following snippet send to the console. var = 1 while var < 10: print("#") var = var << 1 (need to look up bitwise operators)

Answer 28

stop at 4 hashes

Question 29

What value will be assigned to the x variable? z = 10 y = 0 x = y < z and z > y or y > z and z < y and comes before or

Answer 29

T T True because

Question 30

Output of the following snippet a = 1 b = 0 c = a & b bitwise operator - bits 0000 and 0001 d = a | b = 1 in terms of bits e = a ^ b = 1 print (c + d + e)

Answer 30

2

Question 31

Output of the following snippet lst = [3, 1, -2] print(lst[lst[-1]])

Answer 31

1

Question 32

Output? lst = [1,2,3,4] print(lst[-3:-2])

Answer 32

[2]

Question 33

Output vals = [0, 1, 2] vals[0], vals[2] = vals[2], vals[0]

Answer 33

reverses the list

Question 34

After execution of the following snippet the sume of all vals elements will be equal to vals = [0, 1, 2] vals.insert(0,1) del vals[1]

Answer 34

4

Question 35

What is true nums = [1,2,3] vals = nums del vals[1:2]

Answer 35

nums and vals are the same length

Question 36

what is true numbs = [1,2,3] vals = nums

Answer 36

del vals[1:2]

Question 37

What is true nums = [1,2,3] = 1 2 3 vals = nums[-1:-2] all the way to -1 but not including -2

Answer 37

nums is longer than vals

Question 38

What is the output |1 = [1,2,3] |2 = [] for v in |1: |2.insert(0,v) print(|2) v is zero

Answer 38

[3,2,1]

Question 39

What is the output of the following snippet |1 = [1,2,3] for v in range(len(|1)): |1.insert(1,|1[v]) print(|1)

Answer 39

[1, 1, 1, 1, 2, 3]

Question 40

How many elements does the L list contain? L = [i for i in range(-1,2)]

Answer 40

3 -1, 0, 1

Question 41

What is the output of the following snippet T = [[3-i for i in range (3)] for j in range (3)] s = 0 for i in range(3): s += T[i][i] print(s)

Answer 41

6

Question 42

What is the output L = [[0, 1, 2, 3] for i in range(2)] print(L[2][0])

Answer 42

snippet will cause a runtime error

Question 43

Properly starts a parameterless function definition.

Answer 43

def fun():

Question 44

A function defined in the following way def function(x=0): return x*y

Answer 44

may be invoked without any argument, or with just one.

Question 45

a function that Comes with Python and is an integral part of python

Answer 45

built in function

Question 46

The fact that tuples belong to the sequence types means

Answer 46

They can be indexed and sliced like lists.

Question 47

output? def f(x): if x == 0: return 0 return x + f(x - 1) print(f(3))

Answer 47

6

Question 48

Output? def fun(x): x += 1 return x x = 2 x = fun(x+1) print(x)

Answer 48

4

Question 49

what can you insert into commented line to obtain the output that reads a b c Code: dct = {} lst = ['a','b','c','d'] for i in range(len(lst) - 1): dct[lst[i]] = ( lst[i], ) for i in sorted(dct.keys()): k = dct[i] # insert code here

Answer 49

print(k[0])

Question 50

The following snippet def func(a,b): return a ** a print(func(2)

Answer 50

Causes an error

Question 51

Snippet def func1(a): return a ** a def func2(a): return func1(a)*func1(a) print(func2(2))

Answer 51

will output 16

Question 52

Which of the following lines properly starts a function using two parameters, both with zeroed default values?

Answer 52

def fun(a=0,b=0):

Question 53

None value may not be used outside functions

Answer 53

False

Question 54

Output of following def fun(x): if x % 2 == 0: return 1 else: return print(fun(fun(2)) + 1)

Answer 54

The code will cause a runtime error

Question 55

Output of the following def fun(x): global y y = x * x return y fun(2) print(y)

Answer 55

Returns 4

Question 56

Output of the following def any(): print(var + 1,end=") var = 1 any() print(var)

Answer 56

21

Question 57

Assuming that tuple is a correctly created tuple, the fact that tupples are immutable means that the following instruction is tuple[1] = tuple[1] + tuple[0]

Answer 57

illegal because you can not change value of the tuples

Question 58

Output list = ['Mary', 'had', 'a', 'little', 'lamb'] def list(L): del L[3] L[3] = 'ram' print(list(list))

Answer 58

snippet is errorneous

Question 59

Output of the following snippet def fun(x,y,z) return x+2*y+3*zero print(fun(0,z=1,y=3))

Answer 59

9

Question 60

Output def fun(inp=2,out=3): return inp * out print(fun(out=2))

Answer 60

4

Question 61

Output dct = { 'one':'two', 'three':'one', 'two':'three' } v = dct['one'] for k in range(len(dct)): v = dct[v] print(v)

Answer 61

two

Question 62

Output of snippet tup = (1, 2, 4, 8) tup = tup[1:-1] tup = tup[0] print(tup)

Answer 62

2