1z0-908 Exam Dumps - Oracle MySQL Database Administration Questions and Answers

information_schema

world

employee

sys

mysql

performance metrics

InnoDB buffer pool LRU management data

access control lists

view definitions

server runtime configuration

server configuration rollback

stored procedure definitions

It installs most Oracle MySQL products.

It performs product upgrades.

It provides only GUI-driven, interactive installations.

Manual download of separate product packages is required before installing them through MySQL Installer.

It provides a uniform installation wizard across multiple platforms.

user_variables_by_thread

global_variables

variables_by_thread

session_variables

The user is logged in with --user=accounting as an option.

The user is authenticated as the anonymous proxy user ‘’@’%’.

The user is authorized as the accounting@localhost user.

The user is authorized as the rsmith@localhost user.

The user failed to define a username and the connecting username defaulted to ‘’@’%’.

buying more RAM

monitoring OS resources for patterns

adding circular replication nodes for increased DML capability

buying more CPU

buying more disk

basing expected growth on an average of the last 3 years

consulting the application team about any future projects and use

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.

It can be recovered from a donor instance on host3 by cloning using the command cluster.rejoinInstance ('@host3:3377')

It can rejoin the cluster by using the command cluster.addInstance('@host3:3377')

It has been removed from the cluster by using the command STOP GROUP_REPLICATION;

It can rejoin the cluster by using the command dba.rebootClusterFromCompleteOutage()

It has been expelled from the cluster because of a transaction error.

The slave relay logs should be deleted; then execute START SLAVE;

The relay logs from the master should be used to replace the corrupted relay logs.

The slave relay logs should be deleted; execute CHANGE MASTER to adjust the replication relay log file name, then issue start SLAVE;

The slave needs to be restored from backup.

SSL group communication must be enabled at cluster creation time by specifying createCluster ({memberSslMode: 'REQUIRED'}).

Configuring SSL group communication also configures SSL distributed recovery.

An existing InnoDB Cluster must be dissolved and created from scratch to enable SSL for group communication.

SSL group communication can be enabled for an existing cluster, one instance at time, by setting group_replication_ssl_mode.

If only some InnoDB Cluster members are enabled for SSL group communication, and --ssl-mode=PREFERRED, communication will fall back to unencrypted connection.

SSL group communication requires the use of an additional set of parameters group_replication_recovery_*.