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51.
Which command provides the easiest solution to apply basic security settings to MariaDB after installing it?
  • A.
    Modify settings in the my.cnf configuration file
  • B.
    Modify /etc/sysconfig/mariadb and set the parameter CHROOT=yes
  • C.
    Run the mysql_secure_installation command after installation
  • D.
    Enable the SELinux mysql policy module using semodule -i mysql
  • Answer & Explanation
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Answer : [C]
Explanation :
The mysql_secure_installation command goes through a few steps to set up basic security settings.
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52.
Which of the following parameters in my.cnf should you modify to enable full network access to MariaDB databases?
  • A.
    Set the bind address to ::.
  • B.
    Set skip-networking to 1.
  • C.
    Disable connections through sockets.
  • D.
    Use firewall-cmd --enable mysql to open the firewall.
  • Answer & Explanation
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Answer : [A]
Explanation :
By default, MariaDB listens on the loopback address only. Set the bind address to :: to enable MariaDB on IPv4 as well as on IPv6.
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53.
Which command should you use to log in to the database using administrative permissions?
  • A.
    mariadb -u admin -p
  • B.
    mysql -u root
  • C.
    mysql -u root -p
  • D.
    mysql admin@localhost -p
  • Answer & Explanation
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Answer : [C]
Explanation :
The default administrative user for mysql is root; use -p to prompt for a password.
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54.
You want to add a user account to the current database. To do so, you need to find out the current attributes for users, which are created in a table with the name users. Which command can you use to show these attributes?
  • A.
    describe users;
  • B.
    show attributes for users;
  • C.
    list users;
  • D.
    select users;
  • Answer & Explanation
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Answer : [A]
Explanation :
The describe users; command gives information about information currently stored in the users table.
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55.
Which of the following shows correct syntax to add a user into the users table?
  • A.
    INSERT INTO user (Host,User,Password) VALUES (localhost,linda,password)
  • B.
    INSERT INTO user (Host,User,Password) VALUES (localhost,linda,password);
  • C.
    INSERT INTO user (Host,User,Password) VALUES (‘localhost’, ’linda’,’password’);
  • D.
    INSERT INTO user (Host,User,Password) VALUES (‘localhost’, ’linda’,’password’;)
  • Answer & Explanation
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Answer : [C]
Explanation :
Commands need to be closed with a semicolon. All values that need to be inserted in tables need to be put between single quotes.
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