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Pass 1z0-888 Exam Guide

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Question 16

You have a consistent InnoDB backup created with mysqldump, the largest table is 50 GB in size.

You start to restore your backup with this command;

shell> mysql –u root –p < backup.sql

After 30 minutes, you notice that the rate of restore seems to have slowed down. No other processes or external factors are affecting server performance.

Which is the most likely explanation for this slowdown?

Options:

A.

The MySQL server has stopped inserting data to check index consistency.

B.

InnoDB is doing CRC32 checks over the tablespace data as it grows.

C.

The MySQL server is taking a periodical snapshot of data so it can resume the restore if it is interrupted mid-way.

D.

InnoDB has filled the redo log and now must flush the pages.

E.

Secondary indexes no longer fit into the buffer pool.

Question 17

Which two methods accurately monitor the size of your total database size over time? (Choose two.)

Options:

A.

monitoring the Innodb_rows_inserted status variable

B.

monitoring the innodb_redo_log_size variable

C.

monitoring the information_schema.TABLES table

D.

monitoring datadir size in the operating system

E.

monitoring cumulative Innodb_page_size increase

F.

monitoring the performance_schema_hosts_size variable

Question 18

You are no longer able to log in to an existing MySQL Server because the root password credentials not working. You need to reset the root password to complete various administrative tasks. What are the two major methods that will achieve this? (Choose two.)

Options:

A.

Start the MySQL Server in --safe-mode, which only loads the privilege system for changes as data is inaccessible.

B.

Start the MySQL Server with reset-root-password in my.cnf, which will prompt you to enter a new root user password.

C.

Start the MySQL Server with --init-file pointing to SQL that executes an ALTER USER statement to change the root user password.

D.

Start the MySQL Server with --skip-grant-tables and execute SQL, which will update the root password.

E.

Start the MySQL Server with –initialize-insecure to force a password reset procedure on the command line.

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Exam Code: 1z0-888
Exam Name: MySQL 5.7 Database Administrator
Last Update: Nov 21, 2024
Questions: 124
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