1Z0-888 Exam Questions
94 real 1Z0-888 exam questions with expert-verified answers and explanations. Page 2 of 2.
- Question #51Security
Which two are considered good security practices when using passwords? (Choose two.)
password-hashingauthentication-securitypassword-policiesencryption - Question #52Security
You attempt to connect to a MySQL Server by using the mysql client program. However, you receive this notice: `ERROR 2059 (HY000): Authentication plugin 'mysql_clear_password' cann...
Authentication pluginsMySQL security configurationmysql_secure_installationClient authentication - Question #53Security
What are three methods to reduce MySQL server exposure to remote connections? (Choose three.)
SSL/TLS EncryptionNetwork ConfigurationGrant Privilegesskip-networking - Question #54High Availability
Which statement is true about using Microsoft Windows Cluster as a platform for MySQL?
Windows ClusterShared Disk ArchitectureHA ImplementationMySQL Clustering - Question #55Backup and Recovery
You have a server that has very limited memory but has a very large table. You will use mysqldump to back up this table. Which option will ensure mysqldump will process a row at a...
mysqldumpmemory managementbackup optionsrow buffering - Question #56Performance Tuning
You are investigating the performance of a query which selects data from an InnoDB table. Consider this Performance Schema diagnostics output for the query: mysql> SELECT event_id,...
Performance SchemaQuery DiagnosticsTable Definition CacheQuery Optimization - Question #57Performance Tuning
The 'applicationdb' is using InnoDB and consuming a large amount of file system space. You have a / backup partition available on NFS where backups are stored. You investigate and...
InnoDB tablespace managementDisk space reclamationTable compressioninnodb_file_per_table - Question #58Installation and Configuration
You have a config file for a running DB with this excerpt: [mysqld] tmp_table_size=16M sort_buffer_size=256K To address a query performance problem of connecting to the DB from an...
Variable PersistenceQuery Buffer TuningConfiguration ManagementPerformance Debugging - Question #59Replication
This output is from a SHOW SLAVE STATUS: ``` mysql> SHOW SLAVE STATUS\G *************************** 1. row *************************** Slave_IO_state: Waiting for master to send ev...
delayed replicationSQL_Delay parameterSHOW SLAVE STATUSreplication configuration - Question #60MySQL Architecture
In which order does MySQL process an incoming INSERT statement?
Query Processing OrderAuthorization ChecksQuery OptimizationBinary Logging - Question #61Security
You want to immediately stop access to a database server for remote user 'mike'@'client.example.com'. This user is currently not connected to the server. Which two actions can you...
user account managementaccess controlconnection limitsaccount removal - Question #62Security
SQL injection is a common security threat. Which two methods would help protect against this risk? (Choose two.)
SQL InjectionInput ValidationParameterized QueriesStored Procedures - Question #63MySQL Architecture
A transaction involving a single InnoDB INSERT statement commits. Which list of locations is in the sequence of disk writes for this transaction?
InnoDB commit sequenceTransaction durabilityDisk write orderBinary logging - Question #64Security
You have installed the validate_password plug-in and set the validate_password_policy variable. Which validation is affected by the validate_password_policy setting?
validate_password pluginpassword policydictionary validationpassword security - Question #65Security
Which two statements are true regarding MySQL security? (Choose two.)
File OwnershipProcess PrivilegesAccess ControlLeast Privilege - Question #66Performance Tuning
Which storage option for MySQL data directory typically offers the worst performance in a highly concurrent, OLTP-heavy, IO-bound workload?
Storage ArchitectureIO PerformanceRAID CharacteristicsOLTP Workloads - Question #67Security
You are asked to examine user accounts and find: ``` mysql> select user,host,plugin,authentication_string from user; +------------------+-----------------------------+-------------...
User AuthenticationAccount SecurityALTER USER syntaxPassword Management - Question #68Backup and Recovery
You are creating a strategy for backing up MySQL using a cold binary backup. The MySQL instance is a replication master with global transaction identifiers (GTIDs) enabled and it u...
Cold Binary BackupTDE EncryptionDisaster RecoveryGTID Replication - Question #69Performance Tuning
You have successfully provisioned the latest MySQL 5.7 database instance on a physical host, to be added to an existing farm for use in a modern, high volume, ACID-compliant, OLTP...
Buffer Pool ConfigurationInnoDB TuningOLTP Memory AllocationMySQL 5.7 Architecture - Question #70Performance Tuning
You are investigating the performance of the server and see this information: * events_waits_summary_global_by_event_name in the Performance Schema shows that the wait/synch/mutex/...
table cache contentionmutex lock analysisPerformance Schemaconfiguration tuning - Question #71Installation and Configuration
Where does MySQL Linux RPM install the mysqld binary?
RPM installationLinux filesystemmysqld binarysystem paths - Question #72MySQL Architecture
Which two methods will provide the total number of partitions on a table? (Choose two.)
INFORMATION_SCHEMAPartitioningTable MetadataMySQL Internals - Question #73MySQL Architecture
Which statement is correct about how InnoDB storage engine uses disk space?
InnoDB storageTablespace filesStorage engine architectureMyISAM vs InnoDB - Question #74MySQL Architecture
Which statement is true about tablespaces?
tablespace typesstorage architecturesystem tablespacetable storage requirements - Question #75Replication
Which MySQL utility copies the master instance to a slave instance on the same host?
MySQL utilitiesServer cloningMaster-slave setupmysqlserverclone - Question #76Performance Tuning
Consider: ```sql mysql> EXPLAIN SELECT Name FROM Country WHERE Population BETWEEN 1 AND 10000\G *************************** 1. row *************************** id: 1 select_type: SI...
EXPLAIN outputIndex typesQuery optimizationExecution plans - Question #77Backup and Recovery
Multiversion Concurrency Control (MVCC) enables what type of backup?
MVCCHot BackupConcurrency ControlDatabase Availability - Question #78Performance Tuning
Which statement best describes the meaning of the values in the ref columns?
EXPLAIN outputindex usagequery optimizationforeign keys - Question #79Replication
While attempting to set up a new replication slave on host '192.168.0.25' with the user 'replication', you encounter this error: ERROR 1218 (08S01): Error connecting to master: Hos...
MySQL ReplicationUser AuthenticationMaster-Slave SetupGrant Privileges - Question #80Replication
You need to dump the data from the master server and import it into a new slave server. Which mysqldump option can be used when dumping data from the master server in order to incl...
mysqldumpbinary logsmaster-slave replicationbackup - Question #81Replication
You are using GTIDs in replication. You need to skip a transaction with the GTID of aaa-bbb-ccc-ddd-eee:3 on a slave. Which procedure would you execute from a MySQL prompt?
GTIDsTransaction SkippingReplication Error RecoverySlave Configuration - Question #82Backup and Recovery
The MySQL user `adam` currently has USAGE permissions to the database. The football database is transactional and has non-stop updates from application users. The `adam` user needs...
MySQL privilegesmysqldump backupsInnoDB transactionsSUPER privilege - Question #83Security
shell >/etc/init.d/mysql stop shell >/etc/init.d/mysql start --skip-grant-tables Which additional argument makes this operation safer?
skip-grant-tablesnetwork securitystartup optionsauthentication bypass - Question #84Replication
Which statement describes how the relay log works?
Relay LogsReplication ArchitectureBinary LogsSlave Execution - Question #85Security
Why should you be selective when granting the PROCESS privilege to an account?
PROCESS privilegedatabase privilegessecurityaccess control - Question #86Backup and Recovery
You want to dump only data from the userdata table. Which mysqldump command argument is required to accomplish this?
mysqldumpbackup optionsdata consistencytransaction handling - Question #87Installation and Configuration
An employee cannot access the company database. You check the connection variables: mysql> SHOW GLOBAL VARIABLES LIKE '%connect%'; +--------------------+-------+ | Variable_name |...
max_user_connectionsconnection limitsuser privilegesMySQL configuration - Question #88Backup and Recovery
You have just created a replication slave from a backup of the master made with mysqldump: mysqldump -u backup -p --all-databases > /backups/mysql.sql You try to log in to the slav...
mysqldump limitationsmysql system databaseuser privilegesreplication backup - Question #89Security
The account [email protected] has been created with privileges, as shown in the output: mysql> SHOW GRANTS FOR [email protected]; +-----------------------------------------------------...
MySQL GRANT privilegesGRANT OPTIONUser managementAccess control - Question #90Installation and Configuration
To query two system variables, you execute this statement and get the results shown: mysql> SELECT @@autocommit, @@max_connections; +--------------+-------------------+ | @@autocom...
system variablesdynamic configurationstatic variablesMySQL configuration - Question #91Performance Tuning
You have set innodb_stats_auto_recalc to OFF. For tables using persistent statistics, what is the outcome of this change?
InnoDB Statisticsinnodb_stats_auto_recalcAutomatic RecalculationQuery Optimization - Question #92Replication
Consider a replication setup where a snapshot of the replication status shows: mysql> SELECT CHANNEL_NAME, SERVICE_STATE, LAST_HEARTBEAT_TIMESTAMP, RECEIVED_TRANSACTION_SET FROM pe...
Multisource ReplicationReplication ChannelsReplication WorkersPerformance Schema - Question #93Backup and Recovery
What three are correct statements about MySQL backups? (Choose three.)
backup-purposesdisaster-recoveryreplication-setuptest-environments - Question #94Backup and Recovery
You have taken a Logical Volume Manager (LVM) snapshot backup of a volume that contains the MySQL data directory. Why is it important to remove snapshots after completing a raw bac...
LVM snapshotsbackup storage managementsnapshot lifecycledisk space implications