Python questions Dont answer just one question and thats it

Python questions. Dont answer just one question and thats it!!! If you don\'t know how to answer the questions don\'t give answers!!! Thank you!!

QUESTION 1

How many iterations does the following loop execute? (n initially is a strictly positive integer number.)

while n > 0:
  n = n // 10

Impossible to tell.

No (zero)

This is an infinite loop.

Equal to the number of decimal digits in n

  

QUESTION 2

What does the following code fragment display? Assume N is a natural (positive integer) number.

s = 0
i = 1
while i < N:
  s += i
  i += 1
print(s)

The sum of the first N-1 natural numbers.

The product of the first N-1 natural numbers.

The value of N.

The sum of the first N natural numbers.

  

QUESTION 3

What does the following code fragment display? Assume N is a natural (positive integer) number.

s = 1
i = 0
while i < N:
  s *= 10
i += 1
print(s)

N! (N factorial)

10^N

10! (10 factorial)

QUESTION 4

What applications benefit from having an infinite loop? (Check all that applies.)

A program that reads all lines from a text file and displays them in the reverse order.

A Web server.

A program that

A Web browser

QUESTION 5

Which statements immediately terminate a loop within a function? (Check all that applies.)

pass

break

return

quit

  

QUESTION 6

Which value can be used as a sentinel to terminate a loop in which users are asked to enter floating point numbers?

Any integer number.

Any negative number.

\"quit\"

0

QUESTION 7

What is wrong with the following loop?

while busy:
  busy = check_if_busy()

The condition must be written as while busy==True:.

Functions cannot be used within a \"while\" loop.

The value of the

ariable

  

QUESTION 8

Experiment with the following function and find out what it calculates:

def foobar(x):
r, r1 = x / 2, x
while abs(r - r1) > 1e-10:
r, r1 = r1, (r + x / r) / 2
return r

The square root of x.

The absolute value of

The sine of x.

Nothing that I can think of.

QUESTION 9

The following code fragment was supposed to count all occurrences of square brackets in the string text. Why does not it work?

count = 0
i = 0
while i < len(text):
if text[i] == \"[\" or \"]\": count += 1
i += 1
print(count)

The body of the

The variable i must be initialized with

The closing brackets

The value of the variable i eventually becomes greater than the largest index in the string, and the selection operator [] crashes the program.

		Impossible to tell.
		No (zero)
		This is an infinite loop.
		Equal to the number of decimal digits in n

Solution

QUESTION 1

Answer:Equal to the number of decimal digits in n

QUESTION 2

Answer: The sum of the first N-1 natural numbers.

QUESTION 3

Answer:10 cross times N

Question 4:

Answer: WebServer

Question5 :

Answer:break

Question 6:

Answer: Any negative number

Question 7:

Answer:The value of the variable

Question 8:

Answer:Squareroot of x

Question 9:The conditio n must be as follows:

if text[i]==\"[\" or text[i]==\"]\":