Answer:
userB will use his/her private key.
Explanation:
The steps involved in using asymmetric cryptographic algorithm are as follow:
1. Each user generates a pair of keys to be used for the encryption and decryption of messages.
2. Each user places one of the two keys in a public register or other accessible file. This is the public key. The companion key is kept private.
3. If UserA wishes to send a confidential message to UserB, UserA encrypts the message using UserB's public key.
4. When UserB receives the message, she decrypts it using her private key.
Answer:
A. <Title> tag
Explanation:
Required
Tag that can be written in the <head> element
Of the given options, <title> is correct.
This is so because, it is compulsory to have the <title> tag and the only location where it can be placed is inside the <head> tag.
Its function is to display the title of a page
e.g.
<em><title> This is my first page </title></em>
Answer:
<em>Continuous Process Production</em>
Explanation:
In a study on the relationship between industrial structure and performance, conducted by <em>Joan Woodward</em> from 1950 to 1959,
she classified technology into <em>three groups</em>:
- <em>Small batch and Unit technology </em>
- <em>Large batch and Mass production
</em>
- <em>Continuous process production
</em>
She came to a conclusion that the <em>continuous process production was the most complex</em> and unit technology as the least.
Answer:
The solution code is written in Python:
- def square(num):
- if type(num).__name__ == 'int':
- sq_num = num * num
- return sq_num
- else:
- return "Invalid input"
-
- print(square(5))
- print(square("Test"))
Explanation:
To ensure only certain type of operation can be applied on a input value, we can check the data type of the input value. For example, we define a function and name it as <em>square</em> which take one input number, <em>num </em>(Line 1).
Before the <em>num</em> can be squared, it goes through a validation mechanism in by setting an if condition (Line 2) to check if the data type of the input number is an integer,<em> int.</em> If so, the<em> num </em>will only be squared otherwise it return an error message (Line 6).
We can test our function by passing value of 5 and "Test" string. We will get program output:
25
Invalid input
