1z0-883 题目列表
单选题You adjust a default configuration to the following /etc/my.cnf on a Linux installation:[mysqld] Loq-bin Binrylog_format=ROW You do not notice the spelling error in binrylog_format and restart your production server. How does the MySQL server behave with incorrectly spelled options?（）AMysqld uses internal configuration versioning and reverts to the previous configurationBWhen using mysql_config_editor for configuration adjustments, it detects incorrect syntax and typing mistakesCThe mysqld_safe script skips the unknown variable and starts using the remaining configuration changesDMysqld prints to the error log about an unknown variable, and then exits
多选题What are two methods of taking a binary backup of a Mysql Server using InnoDB storage engine?（）AFile system snapshotsBMysqldumpslowCMysqlhotcopyDMysqldump with – binary-data optionEMysql Enterprise Backup
多选题Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master-slave replication. Which two statements are correct?（）ABoth technologies guarantee an identical copy of data on the secondary nodeBOnly MySQL can maintain a time-delayed copy of data on the secondary nodeCBoth technologies use the TCP/IP stack as their primary transmission mediumDDRBD uses shared-disk technology
单选题Consider the following: Which statement best describes the meaning of the value for the key_len column?（）A It shows the total size of the index rowB It shows how many columns in the index are examinedC It shows the number of characters indexed in the keyD It shows how many bytes will be used from each index row
单选题You want a record of all queries that are not using indexes. How would you achieve this?（）ABy enabling the Slow Query Log because all queries that are not using indexes will be logged automaticallyBBy enabling the Error Log because not using indexes is an errorCBy enabling the Slow Query Log and using the – log-queries-not-using-indexes optionDBy enabling the Error Log and using the – log-queries-not-using-indexes option
多选题In a design situation, there are multiple character sets that can properly encode your data. Which three should influence your choice of character set?（）ASyntax when writing queries involving JOINSBMemory usage when working with the dataCCharacter set mapping index hash sizeDDisk usage when storing data
多选题A general purpose MySQL instance is configured with the following options: —log-slow-queries —long-query-time=,0001 —log-slow-admin-queries —general-log —log-bin —binlog-format=STATEMENT —innodb-flush-log-at-trx-commit=1 Which three statements are true（）。AThe General Query Log records more data than the Binary LogBThe binary Log records more data than the General Query LogCThe Slow Query Log records more data than the General Query LogDThe General Query Log records more data than the Slow Query LogEThe Slow Query Log records more data than the Binary LogFThe Binary Log records more data than the Slow Query Log
多选题Which two options describe how MySQL Server allocates memory?（）AThread memory is pre-allocated up to thread_cache_size for performanceBEach connection may have its own per-thread memory allocationsCGlobal memory resources are allocated at server startupDEach thread allocates memory from a global pool
单选题Consider the Mysql Enterprise Audit plugin. Which statement is true when you identify a connection event that has used external authentication?（）AThe attribute STATUS is set to the string EXTERNAL_AUTHBThe attribute PRIV_USER contains the usernameCThe event type that is given in the attribute NAME is EXTERNAL_AUTHDThere is no differentiation between native and external authentication eventsEExternal authentication is managed through external auditing logsFThe PROXY_PRIV user shows a username if external authentication is used
多选题What are three actions performed by the mysql_secure_installation tool?（）AIt prompts you to set the root user account passwordBIt checks whether file permissions are appropriate within datadirCIt asks to remove the test database, which is generated at installation timeDIt can delete any anonymous accountsEIt verifies that all users are configuration with the longer password hash
单选题The following commands are available in the Linux binary distributions of Mysql: Mysqld Mysqld_safe Mysql.server What is the correct description of each of these commands?（）A AB BC CD D
单选题A database exists as a read-intensive server that is operating with query_cachek_type =DEMAND. The database is refreshed periodically, but the resultset size of the queries does not fluctuate. Note the following details about this environment: A web application uses a limited set of queries. The Query Cache hit rate is high. All resultsets fit into the Query Cache. All queries are configured to use the Query Cache successfully. The response times for queries have recently started to increase. The cause for this has correctly been identified as the increase in the number of concurrent users accessing the web service. Based solely on the information provided, what is the most likely cause for this slowdown at the database level?（）AThe Query Cache is pruning queries due to an increased number of requestsBQuery_cache_min_res_unit has been exceeded, leading to an increased performance overhead due to additional memory block lookupsCMutex contention on the Query Cache is forcing the queries to take longer due to its singlethreaded natureDThe average resultset of a query is increasing due to an increase in the number of users requiring SQL statement execution
单选题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 time instead of buffering a set of rows?（）A— quickB— skip-bufferC— single-transactionD— tab
单选题You are attempting to secure a MySQL server by using SSL encryption. On starting MySQL, you get this error: 130123 10:38:02 [ERROR] mysqld: unknown option '—ssl' What is the cause of the error?（）AThe — ssl level was not specifiedBThe server was not started with the – enable–ssl-plugin optionC— ssl is not a valid server optionDThe mysqld binary was not compiled with SSL supportEThe server's SSL certificate was invalid
单选题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 include the master server's binary log information?（）AInclude-master-infoBMaster-binlogCInclude-log-fileDMaster-data