1Z1-920 試験問題を無料オンラインアクセス

Your newly-created Oracle Cloud Infrastructure instance is not available for login in. Which is a valid reason for this issue?

• A.Only root is allowed to access from non-localhost.
• B.The opc user can be used to access MySQL only with the created SSH-Key.
• C.You forgot to create the correct SSL/TLC certificate during the setup process.
• D.You forgot to enable port 3306.
• E.The OCI instance is still in the "creation" process.

After installing MySQL 8.0, you initialize the data directory with the --initialize command. Which two are places where you can find the root password?

• A.The root password inserted in the error log set by the --log-error=[file_name] variable
• B.The root_pw variable stored in the mysq1.install table.
• C.The root password displayed on the screen via a [warning] message.
• D.The root password is not given and is blank. You must manually set the root password.
• E.As root, execute the show password command by using the SHA-256 password encryption plug-in.

Which two deployment architectures could you use for scaling-out database reads?

• A.Edit the configuration file and increase the value for parallel_read_workers and reboot the server
• B.Implementing a three-node, single-primary InnoDB Cluster.
• C.Adding a memcached-tier for caching data and objects in RAM to reduce the number of times an external data source must be read.
• D.Altering the storage engine for all tables to memory to increase performance.
• E.Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.

Which activity will take place if a table is created with both the compression and encryption options?

• A.The compression is performed, the ''data_at_rest_flag" is turned on and the tablespace data is encrypted.
• B.The system generates an error because the COMPRESSION and ENCRYPTION options cannot be used together.
• C.The compression is performed before tablespace data is encrypted.
• D.The tablespace data is encrypted first and then compression is performed.

Which query will find rows in a table that have no counterpart in another table?

• A.SELECT *FROM table1 INNER JOIN table2 ON table1.id=table2.id WHERE table1.id=! table2.id;
• B.SELECT t1.name, t2.name2FROM employee t1 INNER JOIN info t2 WHERE t1.name=t2.name;
• C.SELECT t1.name, t2.name2FROM employee AS t1 INNER JOIN info AS t2 ON t1.name= t2.name2;
• D.SELECT left_tbl.*FROM left_tbl LEFT JOIN right_tbl ON left_tbl.id=right_tbl.idWHERE right_tbl.id IS NULL;