QUESTION NO: 1
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 application on another host, you log in and make these changes to the DB:
mysql> SET GLOBAL tmp_table_size=32000000;
mysql> SET sort_buffer_size=2000000;
This solves the problem with your queries. However, later the DB instance is restarted and the performance problem returns.
Which three best describe this scenario? (Choose three.)
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 application on another host, you log in and make these changes to the DB:
mysql> SET GLOBAL tmp_table_size=32000000;
mysql> SET sort_buffer_size=2000000;
This solves the problem with your queries. However, later the DB instance is restarted and the performance problem returns.
Which three best describe this scenario? (Choose three.)
Correct Answer: B,D,E
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QUESTION NO: 2
The /myfolder/my.cnf file has option set:
[mysqld]
skip-log-bin
/myfolder2/my.cnf has this option set:
[mysqld]
log-bin = /valid/path/to/mysqlbinlog
All mentioned paths are accessible to the account that you are currently using. Assume that any other options mentioned in either file are valid and legal option definitions.
You start an instance by using this command line:
mysqld --defaults-file=/myfolder/my.cnf --defaults-extra-file=/myfolder2/my.cnf What is the outcome?
The /myfolder/my.cnf file has option set:
[mysqld]
skip-log-bin
/myfolder2/my.cnf has this option set:
[mysqld]
log-bin = /valid/path/to/mysqlbinlog
All mentioned paths are accessible to the account that you are currently using. Assume that any other options mentioned in either file are valid and legal option definitions.
You start an instance by using this command line:
mysqld --defaults-file=/myfolder/my.cnf --defaults-extra-file=/myfolder2/my.cnf What is the outcome?
Correct Answer: B
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QUESTION NO: 3
You want to create the first configuration file for a new installation of MySQL.
- You will start mysqldmanually (not automate it to start when the host machine starts or execute as a service).
- You will stop mysqldusing mysqladmin.
- You will interact with mysqldby using only the command-line client mysql.
Which option identifies a maximal set of sections where you can put the "max_allowed_packet=16M" parameter without creating a problem?
You want to create the first configuration file for a new installation of MySQL.
- You will start mysqldmanually (not automate it to start when the host machine starts or execute as a service).
- You will stop mysqldusing mysqladmin.
- You will interact with mysqldby using only the command-line client mysql.
Which option identifies a maximal set of sections where you can put the "max_allowed_packet=16M" parameter without creating a problem?
Correct Answer: C
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QUESTION NO: 4
Group Replication uses global transaction identifiers to track executed transactions and are fundamental in avoiding transaction conflict. Which additional three steps help in avoiding conflicts in group replication?
Group Replication uses global transaction identifiers to track executed transactions and are fundamental in avoiding transaction conflict. Which additional three steps help in avoiding conflicts in group replication?
Correct Answer: A,B,F
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QUESTION NO: 5
An admin attempts to enforce stronger security by using these commands:
The admin then leaves the system running with the specified changes. What are two remaining security concerns?
An admin attempts to enforce stronger security by using these commands:
The admin then leaves the system running with the specified changes. What are two remaining security concerns?
Correct Answer: A,B
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QUESTION NO: 6
You have a MySQL instance with the following variables in the /etc/my.cnf file:
You issue these statements:
USE prices;
UPDATE sales.january SET amount=amount+1000;
An hour after excluding the statements, you realize that you made a mistake and you want to go to the binary log and look at the statements again.
Which statement is true? (Choose two.)
You have a MySQL instance with the following variables in the /etc/my.cnf file:
You issue these statements:
USE prices;
UPDATE sales.january SET amount=amount+1000;
An hour after excluding the statements, you realize that you made a mistake and you want to go to the binary log and look at the statements again.
Which statement is true? (Choose two.)
Correct Answer: B,D
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QUESTION NO: 7
Which statement is true about using Microsoft Windows Cluster as a platform for MySQL?
Which statement is true about using Microsoft Windows Cluster as a platform for MySQL?
Correct Answer: B
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QUESTION NO: 8
A MySQL instance is running on a dedicated server. Developers access the server from the same network subnet. Users access the database through an application that is running on a separate server in a DMZ.
Which two will optimize the security of this setup? (Choose two.)
A MySQL instance is running on a dedicated server. Developers access the server from the same network subnet. Users access the database through an application that is running on a separate server in a DMZ.
Which two will optimize the security of this setup? (Choose two.)
Correct Answer: A,D
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