Pass Your 1Z0-908 Exam Easily - Real 1Z0-908 Practice Dump Updated Dec 01, 2021
2021 Realistic Verified Free Oracle 1Z0-908 Exam Questions
NEW QUESTION 32
Examine these statements and output:
Which statement is true?
- A. The user is authorized as the rsmith@localhostuser.
- B. The user is authenticated as the anonymous proxy user ‘’@’%’.
- C. The user is authorized as the accounting@localhostuser.
- D. The user is logged in with --user=accountingas an option.
- E. The user failed to define a username and the connecting username defaulted to ‘’@’%’.
Answer: A
NEW QUESTION 33
An attempt to recover an InnoDB Cluster fails.
Examine this set of messages and responses:
host3:3377 ssl JS > dba.rebootClusterFromCompleteOutage()
Reconfiguring the default cluster from complete outage…
The instance ‘host1:3377'’ was part of the cluster configuration.
Would you like to rejoin it to the cluster? [y/N]: y
The instance ‘host2:3377’ was part of the cluster configuration.
Would you like to rejoin it to the cluster? [y/N]: y
Dba.rebootClusterFromCompleteOutage: The active session instance isn’t the most updated in comparison with the ONLINE instances of the Cluster’s metadata. Please use the most up to date instance: ‘host1:3377’. (RuntimeError) Which statement is true?
- A. The cluster is running and there is at least one ONLINEinstance.
- B. The active session instance is invalid and must be re-created by using the command shell.connect (‘host3:3377’).
- C. The instance deployed on host3must be rebuilt with a backup from the primary instance.
- D. It is possible to determine the most up-to-date instance by comparing different global transaction identifier (GTID) sets with GTID_SUBSET(set1,set2).
- E. The instance deployed on host3must be synchronized from a donor deployed on host1by using the command cluster.addInstance(‘host1:3377’).
Answer: E
NEW QUESTION 34
Examine this statement:
mysql> DROP ROLE r_role1, r_role2;
Which two are true? (Choose two.)
- A. It fails if any of the roles is specified in the mandatory_roles variable.
- B. Existing connections can continue to use the roles' privileges until they reconnect.
- C. It fails if you do not have the ADMIN OPTION of the roles r_role1 and r_role2.
- D. You must revoke all privileges from r_role1 and r_role2 before dropping the roles.
- E. It fails if at least one of the roles does not exist.
- F. You must revoke r_role1 and r_role2 from all users and other roles before dropping the roles.
Answer: B,C
NEW QUESTION 35
Which two statements are true about InnoDB data-at-rest encryption? (Choose two.)
- A. It decrypts data for use in memory.
- B. It supports all indexes transparently.
- C. It does not support the transportable tablespaces feature.
- D. It supports only non-blob datatypes.
- E. It enforces encryption from disk to memory and over network transmission.
Answer: A,B
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E17952_01/mysql-8.0-en/faqs-tablespace-encryption.html
NEW QUESTION 36
Examine this query and output:
Which two statements are true? (Choose two.)
- A. The countrytable is accessed as the first table, and then joined to the city table.
- B. The query returns exactly 125 rows.
- C. The optimizer estimates that 51 rows in the countrytable have Continent = ‘Asia’.
- D. It takes more than 8 milliseconds to sort the rows.
- E. 35 rows from the city table are included in the result.
Answer: C,E
NEW QUESTION 37
Examine this command and output:
Which two statements are true? (Choose two.)
- A. The lock is a shared lock.
- B. The lock is at the metadata object level.
- C. The lock is a row-level lock.
- D. The lock is at the table object level.
- E. The lock is an exclusive lock.
- F. The lock is an intentional lock.
Answer: D,E
NEW QUESTION 38
You execute this command:
shell> mysqlpump --exclude-databases=% --users
Which statement is true?
- A. It creates a logical backup of all metadata, but contains no table data.
- B. It returns an error because the mysqldump command should have been used.
- C. It creates a logical backup of all MySQL user accounts.
- D. It creates a logical backup of only the users database.
Answer: A
NEW QUESTION 39
Examine this statement and output:
You must try to reduce query execution time.
Which two queries should you focus on? (Choose two.)
- A. QN = 1
- B. QN = 5
- C. QN = 3
- D. QN = 2
- E. QN = 4
Answer: A,D
NEW QUESTION 40
You want to check the values of the sort_buffer_sizesession variables of all existing connections.
Which performance_schematable can you query?
- A. global_variables
- B. user_variables_by_thread
- C. variables_by_thread
- D. session_variables
Answer: D
Explanation:
Explanation/Reference: https://dev.mysql.com/worklog/task/?id=6629
NEW QUESTION 41
You want to log only the changes made to the database objects and data on the MySQL system.
Which log will do this by default?
- A. binary log
- B. error log
- C. slow query log
- D. audit log
- E. general query log
Answer: A
NEW QUESTION 42
Which step or set of steps can be used to rotate the error log?
- A. Rename the error log file on disk, and then execute FLUSH ERROR LOGS.
- B. Execute SET GLOBAL expire_logs_days=0to enforce a log rotation.
- C. Execute SET GLOBAL max_error_count = <number of messages at point to rotate>.
- D. Execute SET GLOBAL log_error = ‘<new error log file>’.
Answer: A
Explanation:
Explanation/Reference: https://blog.pythian.com/mysql-log-rotation/
NEW QUESTION 43
Examine the modified output:
Seconds_Behind_ Master value is steadily growing. What are two possible causes? (Choose two.)
- A. The parallel slave threads are experiencing lock contention.
- B. The master is most probably too busy to transmit data and the slave needs to wait for more data.
- C. One or more large tables do not have primary keys.
- D. This value shows only I/O latency and is not indicative of the size of the transaction queue.
- E. The master is producing a large volume of events in parallel but the slave is processing them serially.
Answer: D,E
NEW QUESTION 44
You plan to install MySQL Server by using the RPM download.
Which two statements are true? (Choose two.)
- A. You can provide the root password interactively.
- B. You must manually initialize the data directory.
- C. The functionality is split among several RPM package files.
- D. The MySQL RPM package installation supports deploying multiple MySQL versions on the same host.
- E. MySQL uses the RPM relocatable installation target feature.
- F. You can find the root password in the error log after the first start.
Answer: D,F
NEW QUESTION 45
Examine this command, which executes successfully:
$ mysqlrouter --bootstrap user@hostname:port --directory=directory_path Which activity is performed?
- A. MySQL Router configures all the cluster nodes based on the information retrieved from the InnoDB cluster metadata server.
- B. MySQL Router is restarted.
- C. MySQL Router configures itself based on the information retrieved from the InnoDB cluster metadata server.
- D. MySQL Router is configured based on the information in files in directory_path.
Answer: C
Explanation:
Explanation/Reference: https://dev.mysql.com/doc/mysql-router/8.0/en/mysqlrouter.html
NEW QUESTION 46
Your MySQL server is running on the Microsoft Windows platform.
Which three local connection protocols are available to you? (Choose three.)
- A. X Protocol
- B. SOCKET
- C. TCP/IP
- D. UDP
- E. named pipes
- F. shared memory
Answer: C,E,F
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E17952_01/mysql-8.0-en/mysql-installer-workflow.html
NEW QUESTION 47
Which two statements are true about InnoDB data-at-rest encryption? (Choose two.)
- A. It decrypts data for use in memory.
- B. It supports all indexes transparently.
- C. It does not support the transportable tablespaces feature.
- D. It supports only non-blob datatypes.
- E. It enforces encryption from disk to memory and over network transmission.
Answer: A,B
NEW QUESTION 48
You made some table definition changes to a schema in your MySQL Server.
Which two statements reflect how MySQL Server handles the table definition changes? (Choose two.)
- A. The metadata is serialized in JSON format in Serialized Dictionary Information (SDI).
- B. MySQL Server stores a copy of the serialized data in the InnoDB user tablespace.
- C. MySQL implicitly executes FLUSH TABLES and stores a snapshot backup of the metadata.
- D. MySQL keeps InnoDB metadata changes in .sdi files in datadir.
- E. MySQL writes SDI to the binary log for distributed backups.
Answer: A,B
NEW QUESTION 49
Which four connection methods can MySQL clients specify with the --protocol option when connecting to a MySQL server? (Choose four.)
- A. IPv6
- B. FILE
- C. SOCKET
- D. MEMORY
- E. PIPE
- F. DIRECT
- G. TCP
- H. IPv4
Answer: C,D,E,G
NEW QUESTION 50
Where is the default data directory located after installing MySQL using RPM on Oracle Linux 7?
- A. /usr/bin
- B. /var/lib/mysql
- C. /usr
- D. /etc/my.cnf
- E. /usr/mysql
Answer: A
NEW QUESTION 51
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