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Oracle MySQL 2021 Implementation Essentials Sample Questions (Q39-Q44):
NEW QUESTION # 39
Which statement adds a column with the largest integer data type?
- A. ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(10,10);
- B. ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(15,10);
- C. ALTER TABLE SCIENTIFIC ADD scientific_value BIGINT;
- D. ALTER TABLE SCIENTIFIC ADD scientific_value INTEGER;
Answer: C
NEW QUESTION # 40
You want to create an encrypted table. So, you enter this command:
CREATE TABLE 'test_encryption2% (
'id' int(10) unsigned NOT NULL AUTO_INCREMENT,
'server_name' varchar(15) NOT NULL,
PRIMARY KEY ('id') ) ENGINE=MYISAM AUTO_INCREMENT=l DEFAULT CHARSET=latin1 ENCRYPTION = 'Y1; You receive the following error:
ERROR 1031 (HY000): Table storage engine for 'test_encryption2' doesn't have this option Which statement correctly explains the reason for this error?
- A. The test_encryption2 already exist. You are not using the correct option to recreate it and it is causing the error.
- B. The encryption feature only works with InnoDB tables. You are creating a MylSAM table, and it is causing the error.
- C. You cannot use the AUTO_INCREMENT option to create an encrypted table. This is what is causing the error.
- D. The term "server_name" is a reserved MySQL term. You cannot use it for the new table. This is what is causing the error.
Answer: B
NEW QUESTION # 41
You have three machines with MySQL Databases running on Linux platform.
Which backup procedures would allow online and remote backup of the MySQL Database on the three machines to a connected Storage NFS?
- A. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Workbench on a separate machine, which is used to connect to the three machines to back up and restore.3. Startup MySQL backup from MySQL Workbench to back up the three databases.4. Validate the backup by using MySQL Workbench to ensure that the backup created is valid.
- B. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on machine which is used to start the backup.3. Start mysqlbackup on only one machine with the installation to back up the databases for the three machines to the mounted volume using - -backup-dir and by giving--hosts=machine1:port1, machine2:port2, machine3:port3.4. Validate the backups using the mysqlbackup program to ensure that the backups created are valid.
- C. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on the machine that is used to start the backup.3. Start mysqlbackup on only one machine with the installation to back up the databases for the three machines to the mounted volume using - - backup-dir and by specifying -- config-files=my1.cnf, my2.cnf, my3.cnf.my1.cnf, my2cnf, and my3.cnf are the MySQL Database Configuration files on the three machines.4. Validate the backup by using the mysqlbackup program to ensure that the backup created is valid.
- D. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on all three machines.3. Start mysqlbackup on all machines to back up the database to the mounted volume using - -backup-dir.4. Validate the backup using the mysqlbackup program to ensure that the backup created is valid.
Answer: D
NEW QUESTION # 42
Which four authentication protocols are allowed when using MySQL Enterprise Authentication?
- A. authentication via Pluggable Authentication Modules (PAMs)
- B. SECURID authentication and authorization identity
- C. connections through the local host via the UNIX socket file
- D. authentication using SHA-256 password hashing
- E. Native Windows services
- F. Simple Authentication and Security Layer
Answer: A,C,D,E
NEW QUESTION # 43
Which two methods help prevent MySQL security risks?
- A. Use the secure installation script "mysql_alays_secure_installation".
- B. Ensure that MySQL accounts have short and easy passwords.
- C. Use a firewall to control access to MySQL ports.
- D. Grant only permissions that a user requires.
- E. Transmit plain (unencrypted) data over networks.
- F. Allow unauthorized clients to connect to the server.
Answer: E,F
NEW QUESTION # 44
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