Answer:
b. data entry slows as every INSERT , UPDATE, or DELETE statement must also update every index.
Explanation:
This process help to improve the speed of get data , it takes each element in the indexed column and save the location to get faster the data. But if you index every attribute in a table it going to take a lot of time locating each column in the respective index in each query(update, delete and insert). For that reason is necesary be carefull with this process and only put index in the relevant columns
Answer:
false
Explanation:
The term 'computationally expensive' means that a given mathematical function, code or an algorithm has high computational complexity. In addition, the mathematical function or algorithm will require several steps and procedures to be completed. Based on this, the statement made in this question is not true.
Answer:
Explanation:
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Based on the given spreadsheet, the database function that needs to be entered into cell I6 to find the average salary of all full-time employees is =AVERAGEIFS(D5:D34,B5:B34,"FT",C5:C34,">=1")
<h3>What does the AverageIfs formula find?</h3>
You can use the AverageIfs formula to find the average of a specific group of numbers from a spreadsheet based on the shared categories that these numbers fall under.
After typing in the =AverageIfs function, you then input the range from which the category will be specified. In this case that is D5:D34. The next entry would be the range the category is picked from which is B5:B34. The function will be FT for Full time workers.
Then use C5:C34 to find out the number of dependents that are equal to or greater than 1.
The digit returned is the average salary of all full-time employees.
Find out more on the AverageIf function at brainly.com/question/13661607
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Answer:
"Mesh topology" is the correct answer.
Explanation:
- A mesh topology seems to be a network configuration where there has been an interconnection between each hardware and communications system. This topology configuration allows the distribution of many of these signals, although one of the connexons starts going down.
- This topology needs to connect each destination to any other end destination, thus creating a completely pointless channel.
