Pyton 1

1. 1What is the output of the following piece of code if the user enters two lines
   containing 3 and 2 respectively?

   1. A3
   2. B0
   3. C2
   4. D1
2. 2What value will be assigned to the x variable?
   z = 0
   y - 10
   x - y < z and z > y or y > z and z < y

   1. A0
   2. B1
   3. CFalse
   4. DTrue
3. 3The following snippet:
   def function_1 (a) :
   return None
   def function 2 (a) :
   return function_1 (a) + function 1 (a)
   print (function_2 (2) )

   1. Awill output 2
   2. Bwill output 16
   3. Cwill output 4
   4. Dwill cause a runtime error
4. 4What will be the output of the following snippet?
   a=1
   b=0
   a=a^b
   b=a^b
   a=a^b
   print (a, b)

   1. A1 0
   2. B11
   3. C01
   4. D00
5. 5What is the output of the following snippet?
   tup = (1, 2, 4, 8)
   tup - tup[-2:-1)
   tup - tup[-1]
   print (tup)

   1. A(4)
   2. B(4,)
   3. C4
   4. D44
6. 6Take a look at the snippet and choose the true statement:
   nums = [1, 2, 3]
   vals - numa
   del vals [:]

   1. Anums is longer than vals
   2. Bthe snippet will cause a runtime error
   3. Cnums and vals have the same length
   4. Dvals is longer than nums
7. 7What is the output of the following snippet?
   det - {'one ': 'two', 'three': 'one', 'two': 'three')
   v - del['three']
   for k in range (len (det)) :
   v - dct [v]
   print (v)

   1. Athree
   2. Bone
   3. Ctwo
   4. D('one','two','three')
8. 8What is the output of the following snippet?
   my_list - (1, 21
   for v in range (2) :
   my_list.insert (-1, my list [v])
   print (my 1ist)

   1. A[1, 2, 1, 2]
   2. B[2, 1, 1, 2]
   3. C[1, 1, 1, 2]
   4. D[1, 2, 2, 21
9. 9What is the output of the following piece of code if the user enters two lines
   containing 2 and 4 respectively?
   
   x = float (input ())
   y = float (input ())
   print (y * (1/ x))

   1. A1.0
   2. B2.0
   3. C0.0
   4. D4.0
10. 10The following snippet:
    def func (a, b):
    relurn b
    print (func (b-2, 2)

    1. Awill output None
    2. Bwill output 4
    3. Cwill output 2
    4. Dis erroneous

11. 11What is the output of the following snippet?
    def fun (x, y) :
    if x =- y:
    return x
    else:
    return fun (x, y-1)
    print (fun (0, 3))

    1. A1
    2. B0
    3. C2
    4. Dthe snippet will cause a runtime error
12. 12What is the expected behavior of the following program?
    foo - (1, 2, 3)
    foo.index (0)

    1. AThe program will cause an AttributeError exception.
    2. BThe program will cause a valueError exception.
    3. CThe program will output 1 to the screen.
    4. DThe program will cause a TypeError exception.
    5. EThe program will cause a syntaxError exception.
13. 13What is the output of the following code if the user enters a o ?
    try:
    value - input ("Enter a value: ")
    print (int (value)/len (value))
    except ValueError:
    print ("Bad input...")
    except ZeroDivisionError:
    print ("Very bad input...")
    except TypeError:
    print ("Very very bad input...")
    except:
    print ("Booo!")

    1. AVery bad input...
    2. B0.0
    3. CBooo!
14. 14Which of the following lines correctly invoke the function defined below? (Select two
    answers)
    def fun (a," b, c=0):
    # Body of the function.

    1. Afun (b-0, a=0)
    2. Bfun ()
    3. Cfun (0, 1, 2)
    4. Dfun (b=1)
15. 15What is the output of the following snippet?
    def fun (inp-2, out-3) :
    return inp * out
    print (fun (out-2))

    1. A2
    2. B6
    3. C4
    4. Dthe snippet is erroneous and will cause SyntaxError
16. 16What is the output of the following snippet?
    def fun (x):
    if x $ 2 -- 0:
    return 1
    else:
    return 2
    print (fun (fun (2) ))

    1. A2
    2. BNone
    3. C1
    4. Dthe code will cause a runtime error
17. 17The result of the following division:
    1 // 2

    1. Acannot be predicted
    2. Bis equal to o
    3. Cis equal to 0.5
    4. Dis equal to 0.0
18. 18Which of the following sentences are true about the code? (Select two answers)
    nums - [1, 2, 3]
    vals = nums

    1. Avals is longer than nums
    2. Bnums has the same length as vals
    3. Cnums and vals are different names of the same list
    4. Dnums and vals are different lists
19. 19What is the output of the following piece of code?
    Y - 2
    X, Y, z = X, X, Y
    I, Y, z - x, y, z
    print (x, y, 2)

    1. A122
    2. B121
    3. C212
    4. D112
20. 20Which of the following variable names are illegal and will cause the SyntaxError
    exception? (Select two answers)

    1. Aprint
    2. BIn
    3. Cfor
    4. Din
21. 21Assuming that my_tuple is a correctly created tuple, the fact that tuples are
    immutable means that the following instruction:
    my_tuplel1] = my_tuple[1] + my_tuple [0]

    1. Ais fully correct
    2. Bcan be executed if and only if the tuple contains at least two elements
    3. Cmay be illegal if the tuple contains strings
    4. Dis illegal
22. 22How many stars (*) will the following snippet send to the console?
    1 - 0
    while i < i + 2 :
    i += 1
    print ("*")
    else:
    print ("*")

    1. Aone
    2. Bzero
    3. Ctwo
    4. Dthe snippet will enter an infinite loop, printing one star per line
23. 23Which of the following snippets shows the correct way of handling multiple
    exceptions in a single except clause?

    1. Aexcept (TypeError, ValueError, ZeroDivisionError)
       # Some code.
    2. Bexcept (TypeError, ValueError, ZeroDivisionError) :
       # Some code.
    3. Cexcept TypeError, ValueError, ZeroDivisionError:
       # Some code.
24. 24How many hashes () will the following snippet send to the console?
    1st - [[x for x in range (3)] for y in range (3) ]
    for r in range (3) :
    for c in range (3) :
    if 1st[r] [c]$ 2 !- 0:
    print ("t")

    1. Asix
    2. Bzero
    3. Cnine
    4. Dthree
25. 25What is the output of the following piece of code?
    print ("a", "b", "c", sep-"sep")

    1. Aasepbsepe
    2. Babc
    3. Casepbsepcsep
    4. Dacb
26. 26What will happen when you attempt to run the following code?
    print (Hello, World!)

    1. AThe code will print Hello, World! to the console.
    2. BThe code will raise the SyntaxError exception.
    3. CThe code will raise the TypeError exception.
    4. DThe code will raise the AttributeError exception.
    5. EThe code will raise the ValueError exception.
27. 27What is the output of the following snippet?
    dd - ("1": "0", "0": "1")
    for x in dd. vals ():
    print (x, end="")

    1. Athe code is erroneous (the dict object has no vals () method)
    2. B0 0
    3. C0 1
    4. D1 0
28. 28The meaning of a positional argument is determined by:
    

    1. Aits connection with existing variables
    2. Bits value
    3. Cits position within the argument list
    4. Dthe argument's name specified along with its value
29. 29What is the expected behavior of the following program?
    try:
    print (5/0)
    break
    except:
    print ("Sorry, something went wrong...")
    except (ValueError, ZeroDivisionError):
    print ("Too bad...")

    1. AThe program will cause a valueError exception and output the followingmessage: Too bad...
    2. BThe program will cause a ValueError exception and output a default errormessage.
    3. CThe program will raise an exception handled by the first except block.
    4. DThe program will cause a ZeroDivisionError exception and output the
       following message: Too bad...
    5. ESyntaxError
30. 30An operator able to check whether two values are not equal is coded as:
    

    1. Anot ==
    2. B<>
    3. C=/=
    4. D!=
31. 31How many elements does the 1st list contain?
    1st = (i for i in range (-1, -2)]

    1. Atwo
    2. Bzer
    3. Cthree
    4. Done
32. 32What is the output of the following snippet?
    my_list = [x * x for x in range (5))
    def fun (1st) :
    del 1st (lat [2]]
    return lst
    print (fun (my_list))

    1. A[0, 1, 4, 9]
    2. B[0, 1, 4, 16]
    3. C[1, 4, 9, 16]
    4. D[0, 1, 9, 16]
33. 33What is the output of the following piece of code?
    x = 1// 5 + 1 / 5
    print)

    1. A0.0
    2. B0.4
    3. C0.2
    4. D0
34. 34What is the output of the following snippet?
    dct - ()
    dct['1'] - (1, 2)
    det ['2'] - (2, 1)
    for x in det.keys () :
    print (det (x) [1l, end-"")

    1. A(1,2)
    2. B21
    3. C12
    4. D(2,1)
35. 35What is the output of the following piece of code if the user enters two lines
    containing 3 and 6 respectively?
    y - input ()
    x - input 0
    print (x + y)

    1. A3
    2. B63
    3. C36
    4. D6

Descripción

Test sobre Pyton 1, creado por _ _ el 21/01/2022.

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