The protocol that should be used to establish a secure network connection for backups is SSH.
<h3>Secure Shell</h3>
SSH stands for <u>Secure Shell</u>. SSH is a <u>protocol that allows users to remotely control and modify servers</u>. SSH is commonly used by administrators to manage certain systems or applications remotely. So the admin can enter the computer via the network, then run various commands to modify or manage files from one computer to another.
SSH has several crucial functions for managing data transfer traffic. Specifically, the following are the functions and benefits of SSH:
- Securing remote access to SSH-enabled systems or network devices for the user and processing them automatically.
- SSH will automatically terminate the connection if there is suspicious activity on the connection used. So you can avoid various cyber threats such as IP and DNS spoofing, data manipulation, illegal tracking, and others.
- Perform automatic and secure file transfers.
- Launch commands securely on remote devices or systems.
- Perform secure component management of network infrastructure.
Learn more about Secure network connection: brainly.com/question/28083478
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Answer:
1.) Relative cell reference - A1
2.) Absolute cell reference - $D$2
3.) Mixed cel reference - $D2
Explanation:
In Microsoft Excel, cell references are very important and critical when dealing with formula. They can give you what you’re looking for or make your entire worksheet incorrect.
A cell reference is a cell address or a range of cell addresses that can be used in a formula.
There are three types of cell references and they are;
a) Relative reference
b) Absolute reference
c) Mixed reference
A relative cell reference is a cell reference that changes when you copy the formula to other cells. It s usually just a normal cell reference like A1, B2, C3. If a formula with a relative cell reference is copied down to other cells, the formula will change. That is a formula with a relative cell reference changes with respect to the cell which it is copied to.
An absolute reference does not change when you copy the formula to other cells. In absolute references, the dollar sign $ is used to “lock” both the row and column so that it does not change when it is copied to other cells. An example is $D$2.
Using a mixed cell reference, one is trying to see that only either the row or column changes with respect to other cells when they are copied. It is like “locking” either the column or the row while changing the other. Just like from the example, $D2 is a mixed cell reference where only the column is locked such that only the row changes when the formula is copied to other cells.
