Grade XI test

Which of the following code deletes the key 103 and its value

• del grades[103]

• grades.pop(103)

• del grades["103"]

• grades.pop("103")

• 

How to fix the syntax error above ?

• grades.pop("Science", None)

• grades.pop["Science","None"]

• del grades["Math"]

• del grades["Math", None]

Which method will remove an element the Dictionary data type?

• .pop()

• .discard()

• .remove()

Please select all correct ways to empty the following dictionary

student = {

"name": "Emma",

"class": 9,

"marks": 75

}

• del student

• del student[0:2]

• student.clear()

What would be the output of the following code snippet?

a_dict = {'color': 'blue', 'fruit': 'apple', 'pet': 'dog'}

d_items = a_dict.items()

print(d_items)

• ('color', 'blue'), ('fruit', 'apple'), ('pet', 'dog')

• dict_items([('color'), ('fruit'), ('pet')])

• [('color', 'blue'), ('fruit', 'apple'), ('pet', 'dog')]

• dict_items([('color', 'blue'), ('fruit', 'apple'), ('pet', 'dog')])

The code above prints

• Math

  Physics

  Chemistry

  English

• 4

  3.8

  3.6

  3.7

• None

  None

  None

  None

• NaN

  NaN

  NaN

  NaN

What is the output of the program above

• e

• y

• t

• g

The output of the code above is

• [101, 102, 103, 104]

• [3.6, 3.7, 3.8, 4]

Assume the key is the student's id and the value is the grade. Which of the following code will get the grade of student id 102.

• grades[102]

• grades.get(102)

• grades[2]

• grades[3]

• grades.key(102)

What will be the output of following program:

test = {1:'A', 2:'B', 3:'C'}

del test[1]

test[1] = 'D'

del test[2]

print(len(test)