How does the InnoDB storage engine handle deadlocks when they are detected?

Consider:

Which statement best describes the meaning of the value for the key_len column?

You have the following in your my.cnf configuration file:
[mysqld]
default_authentication_plugin=sha256_password
You want to create a new user who will be connecting from the IP address 192.0.2.10, and you want to use the authentication plug-in that implements SHA-256 hashing for user account passwords.
Which two statements would create a user named webdesign for this IP address with the password of imbatman using a SHA_256 password hash?

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?

You are no longer able to log in to an existing MySQL Server because the root password credentials not working. You need to reset the root password to complete various administrative tasks. What are the two major methods that will achieve this? (Choose two.)