问题:单选题What is true regarding InnoDB locking?()A InnoDB uses row and table-level locks, but row locks are not escalatesB InnoDB locks only those rows that are updatedC InnoDB only uses row locks, not page or table-level locksD InnoDB row locks may be escalate...
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问题:单选题While reviewing the MySQL error log, you see occasions where MySQL has exceeded the number of file handles allowed to it by the operating system. Which method will reduce the number of file handles in use?()A Activating the MySQL Enterprise thread pool...
问题:多选题Which two requirements would lead towards a high availability solution?()AWhen uptime is criticalBWhen data must be refactoredCWhen application concurrency is staticDWhen data loss is unacceptableEWhen application is a single point of failure...
问题:多选题You need to replicate a table from a master to a slave. The master and slave copies of the table will have different number of columns. Which two conditions must be true?()AEach extra column in the copy with more columns must not have a default valueBC...
问题:单选题An employee cannot access the company database. You check the connection variables: What is a valid explanation for why one of the users is unable to connect to the database?()A Bob has max_user_connections set to zero, which blocks all his connectio...
问题: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 ...
问题:多选题What are three facts about backups with mysqldump?()ACan back up a remote database serverBAllow a consistent backup to be takenCAre always faster to restore than binary backupsDAre able to back up specific items within a databaseECreate automatically c...
问题:多选题Which three statements are characteristic of the MEMORY storage engine?()AIt can support transactionsBTable contents are not saved if the server is restartedCIt cannot contain text or BLOB columnsDIt can support foreign keysEEach table is represented o...
问题:多选题Which two statements are true about setting the per-thread buffers higher than required?()AMore memory per thread is beneficial in all scenariosBIt causes increased overhead due to initial memory allocationCIt can affect system stability during peak lo...
问题:单选题You use—login-path to access a MySQL server on a Linux installation. Which statement is true about the – login-path option that is created by using mysql_config_editor?()A All system users have access to the MySQL server via—login path localB login-pat...
问题:单选题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 backup in this way?()A The snapshot size will continue to grow as changes t...
问题: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 wi...
问题: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 th...
问题: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 ...
问题:多选题Mysqldump was used to create a single schema backup; Shell mysqldump –u root –p sakila sakila2013.sql Which two commands will restore the sakila database without interfering with other running database?()AMysql> USE sakila; LOAD DATA INFILE 'sakila201...
问题:多选题What are four capabilities of the mysql client program?()ACreating, dropping, and modifying tables and indexesBInitiating a binary backup of the database by using the START BACKUP commandCDisplaying replication status informationDShutting down the serv...
问题: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 — si...
问题:单选题You want to start monitoring statistics on the distribution of storage engines that are being used and the average sizes of tables in the various databases. Some details are as follows: The Mysql instance has 400 databases. Each database on an average ...
问题:单选题Review the definition of the phone_list view. CHEATE OR REPLACE ALGORITHM=MERGE DEFINER= 'root'@localhost' SQL SECURITY DEFINER VIEW 'phone_list' AS SELECT e . id as id 'e . first_name AS 'first_name' 'e . last_name AS 'last_name' 'coalesce ( ph1.phone...