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MCQOPTIONS
This section includes 1007 Mcqs, each offering curated multiple-choice questions to sharpen your Technical Programming knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
What is the output of the snippet of code shown below? x=set('abcde') y=set('xyzbd') x.difference_update(y) x y |
| A. | {‘a’, ‘b’, ‘c’, ‘d’, ‘e’} {‘x’, ‘y’, ‘z’} |
| B. | {‘a’, ‘c’, ‘e’} {‘x’, ‘y’, ‘z’, ‘b’, ‘d’} |
| C. | {‘b’, ‘d’} {‘b’, ‘d’} |
| D. | {‘a’, ‘c’, ‘e’} {‘x’, ‘y’, ‘z’} |
| Answer» C. {‘b’, ‘d’} {‘b’, ‘d’} | |
| 602. |
What is the output of the line of code shown below, if s1= {1, 2, 3}? s1.issubset(s1) |
| A. | True |
| B. | Error |
| C. | No output |
| D. | False |
| Answer» B. Error | |
| 603. |
What is the output of the code shown below? a=set('abc') b=set('def') b.intersection_update(a) a b |
| A. | set() (‘e’, ‘d’, ‘f’} |
| B. | {} {} |
| C. | {‘b’, ‘c’, ‘a’} set() |
| D. | set() set() |
| Answer» D. set() set() | |
| 604. |
What is the output of this code? s1={1, 2, 3, 8} s2={3, 4, 5, 6} s1|s2 s1.union(s2) |
| A. | {3} {1, 2, 3, 4, 5, 6, 8} |
| B. | {1, 2, 4, 5, 6, 8} {1, 2, 4, 5, 6, 8} |
| C. | {3} {3} |
| D. | {1, 2, 3, 4, 5, 6, 8} {1, 2, 3, 4, 5, 6, 8} |
| Answer» E. | |
| 605. |
If we have two sets, s1 and s2, and we want to check if all the elements of s1 are present in s2 or not, we can use the function: |
| A. | s2.issubset(s1) |
| B. | s2.issuperset(s1) |
| C. | s1.issuperset(s2) |
| D. | s1.isset(s2) |
| Answer» C. s1.issuperset(s2) | |
| 606. |
The difference between the functions discard and remove is that: |
| A. | Discard removes the last element of the set whereas remove removes the first element of the set |
| B. | Discard throws an error if the specified element is not present in the set whereas remove does not throw an error in case of absence of the specified element |
| C. | Remove removes the last element of the set whereas discard removes the first element of the set |
| D. | Remove throws an error if the specified element is not present in the set whereas discard does not throw an error in case of absence of the specified element |
| Answer» E. | |
| 607. |
The ____________ function removes the first element of a set and the last element of a list |
| A. | remove |
| B. | pop |
| C. | discard |
| D. | dispose |
| Answer» C. discard | |
| 608. |
What is the output of the code shown below? s1={3, 4} s2={1, 2} s3=set() i=0 j=0 for i in s1: for j in s2: s3.add((i,j)) i+=1 j+=1 print(s3) |
| A. | {(3, 4), (1, 2)} |
| B. | Error |
| C. | {(4, 2), (3, 1), (4, 1), (5, 2)} |
| D. | {(3, 1), (4, 2)} |
| Answer» D. {(3, 1), (4, 2)} | |
| 609. |
What is the output of the code shown below? l=[1, 2, 4, 5, 2, 'xy', 4] set(l) l |
| A. | {1, 2, 4, 5, 2, ‘xy’, 4} [1, 2, 4, 5, 2, ‘xy’, 4] |
| B. | {1, 2, 4, 5, ‘xy’} [1, 2, 4, 5, 2, ‘xy’, 4] |
| C. | {1, 5, ‘xy’} [1, 5, ‘xy’ |
| D. | {1, 2, 4, 5, ‘xy’} [1, 2, 4, 5, ‘xy’] |
| Answer» C. {1, 5, ‘xy’} [1, 5, ‘xy’ | |
| 610. |
The output of the code shown below is: a=[1, 4, 3, 5, 2] b=[3, 1, 5, 2, 4] a==b set(a)==set(b) |
| A. | True False |
| B. | False False |
| C. | False True |
| D. | True True |
| Answer» D. True True | |
| 611. |
What is the output of the following code? {a**2 for a in range(4)} |
| A. | {1, 4, 9, 16} |
| B. | {0, 1, 4, 9, 16} |
| C. | Error |
| D. | {0, 1, 4, 9} |
| Answer» E. | |
| 612. |
What is the output of the code shown below? for x in set('pqr'): print(x*2) |
| A. | pp qq rr |
| B. | pqr pqr |
| C. | ppqqrr |
| D. | pqrpqr |
| Answer» B. pqr pqr | |
| 613. |
What is the output of the code shown below? s=set([1, 2, 3]) s.union([4, 5]) s|([4, 5]) |
| A. | {1, 2, 3, 4, 5} {1, 2, 3, 4, 5} |
| B. | Error {1, 2, 3, 4, 5} |
| C. | {1, 2, 3, 4, 5} Error |
| D. | Error Error |
| Answer» D. Error Error | |
| 614. |
What is the output of the code shown below? z=set('abc') z.add('san') z.update(set(['p', 'q'])) z |
| A. | {‘abc’, ‘p’, ‘q’, ‘san’} |
| B. | {‘a’, ‘b’, ‘c’, [‘p’, ‘q’], ‘san} |
| C. | {‘a’, ‘c’, ‘c’, ‘p’, ‘q’, ‘s’, ‘a’, ‘n’} |
| D. | {‘a’, ‘b’, ‘c’, ‘p’, ‘q’, ‘san’} |
| Answer» E. | |
| 615. |
What is the output of the snippet of code shown below? z=set('abc$de') 'a' in z |
| A. | True |
| B. | False |
| C. | No output |
| D. | Error |
| Answer» B. False | |
| 616. |
Which of the following functions will return the symmetric difference between two sets, x and y? |
| A. | x | y |
| B. | x ^ y |
| C. | x & y |
| D. | x – y |
| Answer» D. x – y | |
| 617. |
What is the output of the code shown below? s={1, 2, 3} s.update(4) s |
| A. | {1, 2, 3, 4} |
| B. | {1, 2, 4, 3} |
| C. | {4, 1, 2, 3} |
| D. | Error |
| Answer» E. | |
| 618. |
Write a list comprehension for number and its cube for: l=[1, 2, 3, 4, 5, 6, 7, 8, 9] |
| A. | [x**3 for x in l] |
| B. | [x^3 for x in l] |
| C. | [x**3 in l] |
| D. | [x^3 in l] |
| Answer» B. [x^3 for x in l] | |
| 619. |
What is the output of the code shown below? s={2, 5, 6, 6, 7} s |
| A. | {2, 5, 7} |
| B. | {2, 5, 6, 7} |
| C. | {2, 5, 6, 6, 7} |
| D. | Error |
| Answer» C. {2, 5, 6, 6, 7} | |
| 620. |
Which of the following lines of code will result in an error? |
| A. | s={abs} |
| B. | s={4, ‘abc’, (1,2)} |
| C. | s={2, 2.2, 3, ‘xyz’} |
| D. | s={san} |
| Answer» E. | |
| 621. |
Set makes use of __________ Dictionary makes use of ____________ |
| A. | keys, keys |
| B. | key values, keys |
| C. | keys, key values |
| D. | key values, key values |
| Answer» D. key values, key values | |
| 622. |
What is the output of the code shown? s=set() type(s) |
| A. | <’set’> |
| B. | <class ‘set’> |
| C. | set |
| D. | class set |
| Answer» C. set | |
| 623. |
Is the following piece of code valid? a={1,2,3} b={1,2,3,4} c=a.issuperset(b) print(c) |
| A. | False |
| B. | True |
| C. | Syntax error for issuperset() method |
| D. | Error, no method called issuperset() exists |
| Answer» B. True | |
| 624. |
What is the output of the following piece of code? a={1,2,3} b={1,2,3} c=a.issubset(b) print(c) |
| A. | True |
| B. | Error, no method called issubset() exists |
| C. | Syntax error for issubset() method |
| D. | False |
| Answer» B. Error, no method called issubset() exists | |
| 625. |
What is the output of the following piece of code? >>> a={5,6,7,8} >>> b={7,8,9,10} >>> len(a+b) |
| A. | 8 |
| B. | Error, unsupported operand ‘+’ for sets |
| C. | 6 |
| D. | Nothing is displayed |
| Answer» C. 6 | |
| 626. |
What is the output of the following code? >>> a={1,2,3} >>> {x*2 for x in a|{4,5}} |
| A. | {2,4,6} |
| B. | Error, set comprehensions aren’t allowed |
| C. | {8, 2, 10, 4, 6} |
| D. | {8,10} |
| Answer» D. {8,10} | |
| 627. |
What is the output of the following piece of code? >>> a={5,6,7} >>> sum(a,5) |
| A. | 5 |
| B. | 23 |
| C. | 18 |
| D. | Invalid syntax for sum method, too many arguments |
| Answer» C. 18 | |
| 628. |
What is the output of the following code? >>> a={1,2,3} >>> b=frozenset([3,4,5]) >>> a-b |
| A. | {1,2} |
| B. | Error as difference between a set and frozenset can’t be found out |
| C. | Error as unsupported operand type for set data type |
| D. | frozenset({1,2}) |
| Answer» B. Error as difference between a set and frozenset can’t be found out | |
| 629. |
What is the output of the following code? >>> a={1,2,3} >>> b=a.add(4) >>> b |
| A. | None |
| B. | {1,2,3,4} |
| C. | {1,2,3} |
| D. | Nothing is printed |
| Answer» E. | |
| 630. |
What is the output of the following piece of code? >>> a={1,2,3} >>> b=a.copy() >>> b.add(4) >>> a |
| A. | {1,2,3} |
| B. | Error, invalid syntax for add |
| C. | {1,2,3,4} |
| D. | Error, copying of sets isn’t allowed |
| Answer» B. Error, invalid syntax for add | |
| 631. |
What is the output for the following piece of code? >>> a={1,2,3} >>> b=a >>> b.remove(3) >>> a |
| A. | {1,2,3} |
| B. | Error, copying of sets isn’t allowed |
| C. | {1,2} |
| D. | Error, invalid syntax for remove |
| Answer» D. Error, invalid syntax for remove | |
| 632. |
What is the output of the following piece of code when executed in the python shell? >>> a={1,2,3} >>> a.intersection_update({2,3,4,5}) >>> a |
| A. | {2,3} |
| B. | Error, duplicate item present in list |
| C. | Error, no method called intersection_update for set data type |
| D. | {1,4,5} |
| Answer» B. Error, duplicate item present in list | |
| 633. |
What is the output of the following piece of code? >>> a={3,4,5} >>> a.update([1,2,3]) >>> a |
| A. | Error, no method called update for set data type |
| B. | {1, 2, 3, 4, 5} |
| C. | Error, list can’t be added to set |
| D. | Error, duplicate item present in list |
| Answer» C. Error, list can’t be added to set | |
| 634. |
Is the following piece of code valid? >>> a=frozenset([5,6,7]) >>> a >>> a.add(5) |
| A. | Yes, now a is {5,5,6,7} |
| B. | No, frozen set is immutable |
| C. | No, invalid syntax for add method |
| D. | Yes, now a is {5,6,7} |
| Answer» C. No, invalid syntax for add method | |
| 635. |
What is the syntax of the following piece of code? >>> a=frozenset(set([5,6,7])) >>> a |
| A. | {5,6,7} |
| B. | frozenset({5,6,7}) |
| C. | Error, not possible to convert set into frozenset |
| D. | Syntax error |
| Answer» C. Error, not possible to convert set into frozenset | |
| 636. |
Which of these about a frozenset is not true? |
| A. | Mutable data type |
| B. | Allows duplicate values |
| C. | Allows duplicate values |
| D. | Immutable data type |
| Answer» B. Allows duplicate values | |
| 637. |
Is the following piece of code valid? a={3,4,{7,5}} print(a[2][0]) |
| A. | Yes, 7 is printed |
| B. | Error, elements of a set can’t be printed |
| C. | Error, subsets aren’t allowed |
| D. | Yes, {7,5} is printed |
| Answer» D. Yes, {7,5} is printed | |
| 638. |
What is the output of the following piece of code? >>> a={3,4,5} >>> b={5,6,7} >>> a|b |
| A. | Invalid operation |
| B. | {3, 4, 5, 6, 7} |
| C. | {5} |
| D. | {3,4,6,7} |
| Answer» E. | |
| 639. |
What is the output of the following code? >>> s={5,6} >>> s*3 |
| A. | Error as unsupported operand type for set data type |
| B. | {5,6,5,6,5,6} |
| C. | {5,6} |
| D. | Error as multiplication creates duplicate elements which isn’t allowed |
| Answer» B. {5,6,5,6,5,6} | |
| 640. |
What is the output of the following piece of code? >>> a={5,6,7,8} >>> b={7,8,10,11} >>> a^b |
| A. | {5,6,7,8,10,11} |
| B. | {7,8} |
| C. | Error as unsupported operand type of set data type |
| D. | {5,6,10,11} |
| Answer» E. | |
| 641. |
What is the output of the following code? >>> a={4,5,6} >>> b={2,8,6} >>> a-b |
| A. | {4,5} |
| B. | {6} |
| C. | Error as unsupported operand type for set data type |
| D. | Error as the duplicate item 6 is present in both sets |
| Answer» B. {6} | |
| 642. |
What is the output of the following code? >>> a={4,5,6} >>> b={2,8,6} >>> a+b |
| A. | {4,5,6,2,8} |
| B. | {4,5,6,2,8,6} |
| C. | Error as unsupported operand type for sets |
| D. | Error as the duplicate item 6 is present in both sets |
| Answer» D. Error as the duplicate item 6 is present in both sets | |
| 643. |
If a={5,6,7}, what happens when a.add(5) is executed? |
| A. | a={5,5,6,7} |
| B. | a={5,6,7} |
| C. | Error as there is no add function for set data type |
| D. | Error as 5 already exists in the set |
| Answer» C. Error as there is no add function for set data type | |
| 644. |
If a={5,6,7,8}, which of the following statements is false? |
| A. | print(len(a)) |
| B. | print(min(a)) |
| C. | a.remove(5) |
| D. | a[2]=45 |
| Answer» E. | |
| 645. |
What is the output of the following piece of code when executed in the python shell? >>> a={5,4} >>> b={1,2,4,5} >>> a |
| A. | {1,2} |
| B. | True |
| C. | False |
| D. | Invalid operation |
| Answer» C. False | |
| 646. |
Which of the following statements is used to create an empty set? |
| A. | { } |
| B. | set() |
| C. | [ ]. |
| D. | ( ) |
| Answer» C. [ ]. | |
| 647. |
What is the output of the following piece of code? a = [5,5,6,7,7,7] b = set(a) def test(lst): if lst in b: return 1 else: return 0 for i in filter(test, a): print(i,end=" ") |
| A. | 5 5 6 |
| B. | 5 6 7 |
| C. | 5 5 6 7 7 7 |
| D. | 5 6 7 7 7 |
| Answer» D. 5 6 7 7 7 | |
| 648. |
What is the output of the following code? nums = set([1,1,2,3,3,3,4,4]) print(len(nums) |
| A. | 7 |
| B. | Error, invalid syntax for formation of set |
| C. | 4 |
| D. | 8 |
| Answer» D. 8 | |
| 649. |
Which of the following is not the correct syntax for creating a set? |
| A. | set([[1,2],[3,4]]) |
| B. | set([1,2,2,3,4]) |
| C. | set((1,2,3,4)) |
| D. | {1,2,3,4} |
| Answer» B. set([1,2,2,3,4]) | |
| 650. |
Which of these about a set is not true? |
| A. | Mutable data type |
| B. | Allows duplicate values |
| C. | Data type with unordered values |
| D. | Immutable data type |
| Answer» E. | |