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:
yes i agree with that the answer is in fact true
Explanation:
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The answer is (D) windows server essentials experience
When Windows server Essentials Experience Role available in
Windows Server 2012 R2 Standard and Datacenter is installed, you can take advantage
of the many features available in Windows Server 2012 R2 Essentials. This
service enables you to protect your client and server by backing up all the client
computers and your server within the network.
