python q3

How do you slice a Python array `arr` to get the first three elements?

• `arr[0:2]`

• `arr[0:4]`

• `arr[:3]`

• `arr[1:3]`

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DOK Level 1: Recall

How do you add multiple items (e.g., [4, 5, 6]) to the end of a Python array `arr`?

• `arr.append([4, 5, 6])`

• `arr.extend([4, 5, 6])`

• `arr.add([4, 5, 6])`

• `arr.insert([4, 5, 6])`

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DOK Level 1: Recall

What is the purpose of an array in Python?

• To perform mathematical operations

• To define functions

• To store multiple values in one variable

• To create loops

What method is used to add an element at the end of an array in Python?

• append()

• extend()

• copy()

• clear()

What will be the output-

f=open('abc.txt','a')

text="xyz"

f.write(text)

f.close()

• Writing into the file without erasing old content

• Writing into the file by erasing old content

• reading from the file without erasing old content

• reading from the file by erasing old content

Mode in the following program to open file for writing in a mode where new data will be added at the end of old data

file =open("poem.txt","__")

• r

• w

• a

• r+

Which function read single line at a time?

• read()

• read(n)

• readline()

• readlines()

Determine the output.

(a)  

DETERMINE THE OUTPUT

(a)  

(a)