Answer:
The correct answer is letter "A": The message is broken into independent blocks which are encrypted.
Explanation:
There are five (5) main forms of encryption: <em>Electronic Code Book (ECB), Cipher Block Chaining (CBC), Cipher Feedback (CFB), Output Feedback (OFB), and Output Feedback (OFB)</em>. Electronic Code Book (ECB) is the simplest of all of them. Using this method to encrypt information implies dividing a message into two parts to encrypt each block independently. ECB does not hide patterns effectively because the blocks are encrypted using identical plaintexts.
Answer:
the software that manages and controls the activities and resources of the computer is OS
Explanation:
the software that manages and controls the activities and resources of the computer is OS
because here we know that CPU is hardware
and ALU is a digital circuit that is use to perform arithmetic and logic operations
and
GUI or Graphical User Interface controls the graphical interface of the applications
so here correct option is OS that is the software that manages and controls the activities and resources of the computer
