What will be the result of the following code?

d = {"Jo":1,"Ra":2} 
d.update({"Phoebe":2})
print(dict)

1. {"Jo":1,"Ra":2,"Ph":2}
2. {"Jo":1,"Ra":2}
3. {"Jo":1,"Ph":2}
4. Error

Which of the following will delete key_value pair for key="tiger" in dictionary?

di = {"lion":"wild","tiger":"wild","cat": "domestic", "dog":"domestic"}

1. del di["tiger"]
2. di["tiger"].delete( )
3. delete(di["tiger"])
4. del(di.["tiger"])

Which of the following Python codes will give the same output if

dict = {"diary":1, "book":3, "novel":5}

(i) dict.pop("book")
(ii) del dict["book"]
(iii) dict.update({"diary":1,"novel":5})

1. (i), (ii), (iii)
2. (1), (ii)
3. (i), (iii)
4. (ii), (iii)

What will be the output of following Python code?

d1 = {"a":10,"b":2,"c":3}
str1=""
for i in d1:
    str1 = str1 + str(d1[i]) + " " 
    str2 = str1[:-1]
print(str2[::-1])

1. 3, 2
2. 3, 2, 10
3. 3, 2, 01
4. Error