Question 1

Which of the following is the correct order of operator precedence?

Options :

A : Parentheses

Exponents

Unary positive, negative, not

Addition and Subtraction

Multiplication and Division

And

B : Exponents

Unary positive, negative, not

Multiplication and Division

Addition and Subtraction

And

Parentheses

C : Parentheses

Exponents

Unary positive, negative, not

Multiplication and Division

Addition and Subtraction

And

D : Exponents

Unary positive, negative, not

Parentheses

Multiplication and Division

Addition and Subtraction

And

Answer: C

Question 2

What is the expected output of the following snippet?

1. s = 'python'

2. for i in range(len(s)):

3. i = s[i].upper()

4. print(s, end='')

Options :

A : Python

B : The code is erroneous.

C : P Y T H O N

D : python

E : P y t h o n

Answer: D

Question 3

Which of the following statements are true? (Select two answers)

Options :

A : open () requires a second argument

B : open () is a function which returns an object that represents a physical file

C : instd, outstd, errstd are the names of pre-opened streams

D : if invoking open () fails, an exception is raised

Answer: D

Question 4

You are going to read 16 bytes from a binary file into a bytearray called dat

a. Which lines would you use? (Select two answers)

Options :

A : data = bytearray (16) bf.readinto (data)

B : data = binfile.read (bytearray (16))

C : bf. readinto (data = bytearray (16))

D :

data = bytearray (binfile.read (16))

https://docs.python.org/3/library/functions.html#func-bytearray

https://docs.python.org/3/library/io.html

Answer: A,D

Question 5

Which of the following functions immediately terminates a program?

Options :

A : sys.halt()

B : sys.exit()

C : sys.stop()

D : None

E : sys.terminate()

Answer: B