The following code has two dictionaries with tuples as keys. While one of these dictionaries being successfully created, the other is giving some error. Find out which dictionary will be created successfully and which one will give error and correct it :

dict1 = { (1, 2) : [1, 2], (3, 4) : [3, 4]}  
dict2 = { ([1], [2]) : [1,2], ([3], [4]) : [3, 4]}

Nesting of dictionary allows you to store a dictionary inside another dictionary. Then why is following code raising error ? What can you do to correct it ?

d1 = {1 : 10, 2 : 20, 3 : 30}
d2 = {1 : 40, 2 : 50, 3 : 60}
d3 = {1 : 70, 2 : 80, 3 : 90}
d4 = {d1 : "a", d2 : "b", d3 : "c"}

What is the output produced by the following code :

d1 = {5 : [6, 7, 8], "a" : (1, 2, 3)}  
print(d1.keys())  
print(d1.values())  

Consider the following code and then answer the questions that follow :

myDict = {'a' : 27, 'b' : 43, 'c' : 25, 'd' : 30}
valA =''
for i in myDict :
  if i > valA :
    valA = i
    valB = myDict[i]
print(valA)	            #Line1
print(valB)	            #Line2
print(30 in myDict)	    #Line3
myLst = list(myDict.items())
myLst.sort()	            #Line4
print(myLst[-1])	        #Line5

1. What output does Line 1 produce ?
2. What output does Line 2 produce ?
3. What output does Line 3 produce ?
4. What output does Line 5 produce ?
5. What is the return value from the list sort( ) function (Line 4) ?