Answer:
Code is in the attached screenshot.
Explanation:
Assumed it was written in Java based on your other question asked.
<span>Ftp is a network protocol that is utilized to copy and manage files over the internet. </span>FTP<span> is widely </span>used<span> for transferring </span>files<span> between computers </span>over<span> a TCP/IP-based network, such as the </span>Internet<span>.</span>
In excel spreadsheets, Sidney
need to consider specifying relationships between the information you have
stored in your spreadsheets when creating formulas. The elements that will help
you understand using spreadsheet are the constants, operators, references and
functions. This will enable her to use the formulas, without hassle in
spreadsheets.
Answer:
B. Symmetric key encryption
Explanation:
Symmetric key encryption is one in which a single encryption key is sent to the receiver so both sender and receiver share the same key. In this type of encryption, the sender uses a particular key to encrypt the data and sends the encrypted data (cipher data) to the receiver and then the receiver uses the same key to decrypt the data.
Public key encryption, or asymmetric encryption uses two keys - a private key and a public key. The public key is know to everyone while the private key is known only to those for whom the message is intended. An application of this type of encryption is in SSL (Secure Sockets Layer) - a protocol for transmitting data privately on the internet.
Private key encryption is not exactly one of the encryption methods but rather, a private key and a public key are used in encryption.
The best option is therefore <em>symmetric key encryption</em>.
<em>Hope this helps!</em>
It's easier to send the files that way because you don't have to attach them individually, and then your friend won't have to download them individually - they can just download the zip package and have all four right at their disposal.
