You have a MySQL instance running in a single cpu (1vCPU) VM in a shared infrastructure environment.
Your users are complaining that MySQL is sporadically slow and you have a suspicion that the VM infrastructure host is at fault due to resource contention.
You review the output of your scripts that monitor the database VM operating system during an extended period of slowdown.
What are the two most common indicators of the VM infrastructure host being at fault due to resource contention? (Choose two.)
Consider the table people with the definition:
The application uses a query such as:
SELECT * FROM people WHERE YEAR(Birthday) = 1980;
The query is not using an index.
Which two methods can be used to allow the query to use an index? (Choose two.)
You have a MySQL instance with the following variables in the /etc/my.cnf file:
You issue these statements:
USE prices;
UPDATE sales.january SET amount=amount+1000;
An hour after excluding the statements, you realize that you made a mistake and you want to go to the binary log and look at the statements again.
Which statement is true? (Choose two.)
The Performance Schema includes these tables related to status variables:
Which two facts are true about these tables? (Choose two.)
Consider the key buffer in a MySQL server. Which two statements are true about this feature?
