Basic python - L4

Question 1.  
What "error type" would  be the output?
bar = "namaste"
del bar
print(bar)
 

Question 2. 
What would be the output?
n = 3.7
F_num = math.floor(n)  
print(F_num) 
 

Question 3.
What is the difference between the result of ?
5//2  and  5/2  ?
 

Question 4. 
In database table how many PRIMARY KEY can be defined ?
 

Q uestion 5.
In Query  "SELECT * FROM students" what does mean * keyword ?
 

Question 6.  
How do you access its elements in Dictionary?
 

Question 7.
What will be the output of the code below?
 list = ['a', 'b', 'c', 'd', 'e']
 print list[10:] 
 

Question 8.  
Write the name of constructor in class?

Question 9. 
What will be the output of the code below?
data = ['a', 'b,d', 'c', 'a', 'b', 'a,c']
count = Counter(data)
print(count)

Question 10 . 
What type of number you will get from this function ?
def is_even(num):
    return num % 2 == 0
 

Question 11 .
 A concatination is only possible in what type data ?

Question 12 . 
What will be the output of the code below ?
lst = [123,25,10,5,16,47]
for i in lst:
    if i == 25 or i == 10 or i == 5 or i ==  16 or i == 47:
            continue
    print(i)
 

Question 13. 
Write MySQL clause is used to filter the records returned by a query?

Question 14 . 
What is default user name of MySQL?

Question 15. 
What is the name of the key in a column (or set of columns) that uniquely identifies each row in a database table?

Question 16. 
Which MySQL feature allows a column to automatically increment its value each time a new record is inserted into the table?

Question 17. 
What will be the output of the code below ?
nom = 1234
total = 0
while nom>0:
     total += (nom%10)
     nom//=10
print(f"Sum of Digit is {total}")

Question 18. 
What type of error is this: int("abc")?

Question 19 . 
What will be the output of the following code?
 x = "5"
 y = 2
 print(x * y)

Question 20 .
What is the output of this expression?
print(10 > 5 and 5 < 2)