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M3 R5: Programming and Problem Solving through Python

Data Structures in Python

Set 6

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1 Set makes use of Dictionary makes use of __

सेट का उपयोग करता है शब्दकोश __ का उपयोग करता है

keys, keys

key values, keys

keys, key values

key values, key values

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2 Which of the following lines of code will result in an error?

कोड की निम्नलिखित लाइन्स में से कौन सा एरर होगा ?

s={abs}

s={4, ‘abc’, (1,2)}

s={2, 2.2, 3, ‘xyz’}

s={san}

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3 Which of the following functions cannot be used on heterogeneous sets?

निम्न में से किस फ़ंक्शन का यूज़ हेटरजीन्यस सेटों पर नहीं किया जा सकता है?

pop

remove

update

sum

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4 Which of the following functions will return the symmetric difference between two sets, x and y?

निम्नलिखित में से कौन सा कार्य दो सेटों, x और y के बीच सिमेट्रिक डिफ्रेंस को रिटर्न करेगा ?

x | y

x ^ y

x & y

x – y

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5 The ____________ function removes the first element of a set and the last element of a list.

____________ फ़ंक्शन सेट का फर्स्ट एलिमेंट् और किसी लिस्ट का लास्ट एलिमेंट निकालता है।

remove

pop

discard

dispose

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6 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:

यदि हमारे पास दो सेट हैं, s1 और s2, और हम यह चेक करना चाहते हैं कि s1 के सभी एलिमेंट s2 में मौजूद हैं या नहीं, हम फ़ंक्शन का यूज़ कर सकते हैं:

s2.issubset(s1)

s2.issuperset(s1)

s1.issuperset(s2)

s1.isset(s2)

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7 Which of the following statements create a dictionary?

निम्नलिखित में से कौन सा स्टेट्मेंट एक ड़िक्शनरी बनाता है?

d = {}

d = {“john”:40, “peter”:45}

d = {40:”john”, 45:”peter”}

All of the mentioned

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8 What will be the output of the following Python code snippet? d = {"john":40, "peter":45} print("john" in d)

निम्नलिखित पायथन कोड स्निपेट का आउटपुट क्या होगा? d = {"john":40, "peter":45} print("john" in d)

True

False

None

Error

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9 What will be the output of the following Python code snippet? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} print(d1 == d2)

निम्नलिखित पायथन कोड स्निपेट का आउटपुट क्या होगा? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} print(d1 == d2)

True

False

None

Error

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-d2)-" target="_blank">10 What will be the output of the following Python code snippet? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} print(d1 > d2)

-d2)-" target="_blank">निम्नलिखित पायथन कोड स्निपेट का आउटपुट क्या होगा? d1 = {"john":40, "peter":45} d2 = {"john":466, "peter":45} print(d1 > d2)

True

False

Error

None

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11 What will be the output of the following Python code snippet? d = {"john":40, "peter":45} print(d["john"])

निम्नलिखित पायथन कोड स्निपेट का आउटपुट क्या होगा? d = {"john":40, "peter":45} print(d["john"])

40

45

“john”

“peter”

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12 Suppose d = {“john”:40, “peter”:45}, to delete the entry for “john” what command do we use?

मान लीजिए d = {“john”:40, “peter”:45}, “john” की प्रविष्टि हटाने के लिए हम किस कमांड का उपयोग करेंगे?

d.delete(“john”:40)

d.delete(“john”)

del d[“john”]

del d(“john”:40)

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13 Suppose d = {“john”:40, “peter”:45}. To obtain the number of entries in dictionary which command do we use?

मान लीजिए d = {“john”:40, “peter”:45}. शब्दकोश में प्रविष्टियों की संख्या प्राप्त करने के लिए हम किस कमांड का उपयोग करते हैं?

d.size()

len(d)

size(d)

d.len()

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14 What will be the output of the following Python code snippet? d = {"john":40, "peter":45} print(list(d.keys()))

निम्नलिखित पायथन कोड स्निपेट का आउटपुट क्या होगा? d = {"john":40, "peter":45} print(list(d.keys()))

[“john”, “peter”]

[“john”:40, “peter”:45]

(“john”, “peter”)

(“john”:40, “peter”:45)

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15 Suppose d = {“john”:40, “peter”:45}, what happens when we try to retrieve a value using the expression d[“susan”]?

मान लीजिए d = {“john”:40, “peter”:45}, तब क्या होता है जब हम d[“susan”] अभिव्यक्ति का उपयोग करके मान प्राप्त करने का प्रयास करते हैं?

Since “susan” is not a value in the set, Python raises a KeyError exception

It is executed fine and no exception is raised, and it returns None

Since “susan” is not a key in the set, Python raises a KeyError exception

Since “susan” is not a key in the set, Python raises a syntax error

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16 Which of these about a dictionary is false?

एक ड़िक्शनरी के बारे में इनमें से कौन गलत है?

The values of a dictionary can be accessed using keys

The keys of a dictionary can be accessed using values

Dictionaries aren’t ordered

Dictionaries are mutable

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17 Which of the following is not a declaration of the dictionary?

निम्नलिखित में से कौन सा ड़िक्शनरी का डिक्लेरेशन नहीं है?

{1: ‘A’, 2: ‘B’}

dict([[1,”A”],[2,”B”]])

{1,”A”,2”B”}

{ }

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18 What will be the output of the following Python code snippet? a={1:"A",2:"B",3:"C"} for i,j in a.items(): print(i,j,end=" ")

निम्नलिखित पायथन कोड स्निपेट का आउटपुट क्या होगा? a={1:"A",2:"B",3:"C"} for i,j in a.items(): print(i,j,end=" ")

1 A 2 B 3 C

1 2 3

A B C

1:”A” 2:”B” 3:”C”

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19 What will be the output of the following Python code snippet? a={1:"A",2:"B",3:"C"} print(a.get(1,4))

निम्नलिखित पायथन कोड स्निपेट का आउटपुट क्या होगा? a={1:"A",2:"B",3:"C"} print(a.get(1,4))

1

A

4

Invalid syntax for get method

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20 What will be the output of the following Python code snippet? a={1:"A",2:"B",3:"C"} print(a.get(3))

निम्नलिखित पायथन कोड स्निपेट का आउटपुट क्या होगा?

Error, invalid syntax

A

5

C

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21 What will be the output of the following Python code snippet? a={1:"A",2:"B",3:"C"} a.setdefault(4,"D") print(a)

निम्नलिखित पायथन कोड स्निपेट का आउटपुट क्या होगा? a={1:"A",2:"B",3:"C"} a.setdefault(4,"D") print(a)

{1: ‘A’, 2: ‘B’, 3: ‘C’, 4: ‘D’}

None

Error

[1,3,6,10]

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22 What will be the output of the following Python code? a={1:"A",2:"B",3:"C"} b={4:"D",5:"E"} a.update(b) print(a)

निम्नलिखित पायथन कोड का आउटपुट क्या होगा? a={1:"A",2:"B",3:"C"} b={4:"D",5:"E"} a.update(b) print(a)

{1: ‘A’, 2: ‘B’, 3: ‘C’}

Method update() doesn’t exist for dictionaries

{1: 'A', 2: 'B', 3: 'C', 4: 'D', 5: 'E'}

{4: ‘D’, 5: ‘E’}

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23 What will be the output of the following Python code? a={1:"A",2:"B",3:"C"} b=a.copy() b[2]="D" print(a)

निम्नलिखित पायथन कोड का आउटपुट क्या होगा? a={1:"A",2:"B",3:"C"} b=a.copy() b[2]="D" print(a)

Error, copy() method doesn’t exist for dictionaries

{1: ‘A’, 2: ‘B’, 3: ‘C’}

{1: ‘A’, 2: ‘D’, 3: ‘C’}

“None” is printed

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24 What will be the output of the following Python code? a={1:"A",2:"B",3:"C"} a.clear() print(a)

निम्नलिखित पायथन कोड का आउटपुट क्या होगा? a={1:"A",2:"B",3:"C"} a.clear() print(a)

None

{ None:None, None:None, None:None}

{1:None, 2:None, 3:None}

{ }

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25 Which of the following isn’t true about dictionary keys?

निम्नलिखित में से कौन ड़िक्शनरी keys के बारे में सही नहीं है?

More than one key isn’t allowed

Keys must be immutable

Keys must be integers

When duplicate keys encountered, the last assignment wins

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