The ethernet address, a.k.a. mac address. That way, a DHCP server can give the same IP address to a returning client.
Explanation:
Both Primary Key and Candidate Key are the attributes that are used to access tuples from a table. These (Primary key and Candidate key) are also can be used to create a relationship between two tables.
- A Candidate Key can be any column or a combination of columns that can qualify as a unique key in the database. Each Candidate Key can qualify as a Primary Key.
- A Primary Key is a column or a combination of columns that uniquely identify a record. The primary key is a minimal super key, so there is one and only one primary key in any relationship.
<em> The main difference between them is that a primary key is unique but there can be many candidate keys. </em>
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Answer:
69.54
Explanation:
A power ratio of 9000000:1 corresponds to 69.54 dB.
The calculation is presented below:
Formula for calculating Power ratio (db) = 10 * log [P(out)/P(in)]
Since the given ratio is 9000000:1, substituting in the formula gives us 10 * log (9000000/1)
Note that log 9000000 = 6.954
Therefore, 10 * log (9000000/1) = 69.54
Hence the required power ratio in db is 69.54 db.
The way to proceed in the situation presented would be:
- Finish the process started to help that user and continue with the other tasks of the day.
<h3>How to serve a customer properly?</h3>
In different work positions we have the possibility of personally or virtually assisting clients by carrying out procedures to help them improve their service or experience with the company.
Companies have developed complete customer service systems so that their employees know how to proceed in different specific situations in which their customers require help.
In the situation described, the most appropriate thing would be to finish the process required by the user and continue with the other tasks of the day that were planned.
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