Free Oracle 1z0-908 Practice Exam with Questions & Answers | Set: 2

The root user had the largest number of modified rows for a SELECT statement.

User bob had the largest total time waiting for locks.

The root user had the largest single wait time.

The app user had the highest total number of rows read from storage engines.

User bob had a significantly higher ratio of SELECT + INSERT statements to QUIT than both app and root users.

Stop all instances except the primary read/write master instance and run the restore.

Remove the @@GLOBAL.gtid_purged statement from the dump file.

Create the backup by using the --set-gtid-purged=OFF option.

Remove the group replication plugin from each instance before restoring.

Remove the @@GLOBAL.gtid_executed statement from the dump file.

Restore using the --set-gtid-purged=OFF option.

MyISAM

NDB

MEMORY

ARCHIVE

InnoDB

performance metrics

table definitions

access control lists

view definitions

server runtime configuration

server configuration rollback

stored procedure definitions

Firewall_cached_entries is the number of statements found in the query cache for users in DETECTING mode.

Firewall_access_denied is the number of connection attempts from prohibited hosts that are denied.

Firewall_access_suspicious is the number of statements logged as suspicious for users in DETECTING mode.

Firewall_access_granted is the number of connections granted from whitelisted hosts.

UPDATE world.country SET Name='all';

UPDATE world.country SET Name='one' LIMIT 1;

UPDATE world.country SET Name='new' WHERE Name='old';

UPDATE world.country SET Name=CONCAT('New ',Name);

UPDATE world.country SET Name='first' ORDER BY Name LIMIT

The cluster will shut down to preserve data consistency.

The cluster has built-in high availability and updates group_replication_ip_whitelist to remove the unreachable nodes.

The group replication will buffer the transactions on the online nodes until the unreachable nodes return online.

There could be both a 2 node and 3 node group replication still running, so shutting down group replication and diagnosing the issue is recommended.

A manual intervention to force group members to be only the working two instances is required.

Remove ib_logfile0 and ib_logfile1 files from the file system.

Execute mysqladmin flush-logs.

First run mysqld --initialize to refresh the Size of ib_logfile.

Create a new ib_logfile0 file of size 26214400.

mysqlbinlog --stop-position=500324 binlog.000036 | mysql

mysqlbinlog --stop-datetime='2019-ll-20 14:55:18' binlog.000036 | mysql

mysqlbinlog --stop-position=5004S3 binlog.000036 | mysql

mysqlbinlog --stop-datetime='2019-ll-20 14:55:16' binlog.000036 | mysql

ALTER USER baduser@hostname PASSWORD DISABLED;

ALTER USER baduser@hostname MAX_USER_CONNECTIONS 0;

ALTER USER baduser@hostname ACCOUNT LOCK;

ALTER USER baduser@hostname IDENTIFIED WITH mysql_no_login;

ALTER USER baduser@hostname DEFAULT ROLE NONE;