Answer:
A. data-link layer
Explanation:
Data-link layer is the first layer and allows a contiguous sequence of bits to be transmitted through the network.
On top of it is the Network Layer and it handles the task of routing network messages from one computer to another.
Then comes the Transport Layer which is the basic layer at which one network computer communicates with another network computer.
Answer: A- Public Key Encryption
Explanation: The Public key Encryption is used prevalently on the web, it allows for secure messages to be sent between parties without having to agree on, or share, a secret key. It uses an asymmetric encryption scheme in which the encryption key is made public, but the decryption key is kept private.
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Answer:
The right answer is A
Explanation:
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A <em>"DATA FLOW DIAGRAM"</em> is a modeling tool used in structured systems analysis and design (SSAD) analysis model that helps break down a complex process into simpler, more manageable, and more understandable subprocesses
