Oracle 1z1-908 Dumps Updated Jan 31, 2024 WIith 142 Questions
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NEW QUESTION # 39
Examine the modified output:
Seconds_Behind_ Mastervalue is steadily growing.
What are two possible causes? (Choose two.)
- A. One or more large tables do not have primary keys.
- B. The master is producing a large volume of events in parallel but the slave is processing them serially.
- C. This value shows only I/O latency and is not indicative of the size of the transaction queue.
- D. The master is most probably too busy to transmit data and the slave needs to wait for more data.
- E. The parallel slave threads are experiencing lock contention.
Answer: B,C
Explanation:
Explanation
NEW QUESTION # 40
Which step or set of steps can be used to rotate the error log?
- A. Execute SET GLOBAL expire_logs_days=0to enforce a log rotation.
- B. Execute SET GLOBAL max_error_count = <number of messages at point to rotate>.
- C. Execute SET GLOBAL log_error = ‘<new error log file>’.
- D. Rename the error log file on disk, and then execute FLUSH ERROR LOGS.
Answer: D
Explanation:
Explanation/Reference: https://blog.pythian.com/mysql-log-rotation/
NEW QUESTION # 41
Examine this command, which executes successfully on InnoDB Cluster: dba.dropMetadataSchema() Which two statements are true? (Choose two.)
- A. The mysql_innodb_cluster_metadata schema is dropped from the instance where the connection was established.
- B. The mysql_innodb_cluster_metadata schema is dropped from all reachable members of the cluster.
- C. The command drops the mysql_innodb_cluster_metadata schema and re-creates it.
- D. Group Replication will be dissolved and all metadata purged.
- E. Connections driven by MySQL Router are not affected by the command.
- F. Group Replication is still operational, but InnoDB Cluster must be reimported under MySQL Shell.
Answer: A,E
NEW QUESTION # 42
MySQL programs look for option files in standard locations.
Which method will show the option files and the order in which they are read?
- A. mysql> SHOW GLOBAL VARIABLES;
- B. shell> mysqladmin --debug
- C. shell> mysql --print-defaults
- D. shell> mysqld --help --verbose
Answer: B
NEW QUESTION # 43
Which two MySQL Shell commands are excluded from the InnoDB Cluster creation procedure? (Choose two.)
- A. cluster.setPrimaryInstance()
- B. dba.configureLocalInstance()
- C. cluster.forceQuorumUsingPartitionOf()
- D. cluster.addInstance()
- E. dba.configureInstance()
- F. dba.checkInstanceConfiguration()
- G. dba.createCluster()
Answer: A,C
Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E17952_01/mysql-shell-8.0-relnotes-en/news-8-0-16.html
NEW QUESTION # 44
Your my.cnf file contains these settings:
You want to log queries that looked at a minimum of 5000 records and either took longer than 5 seconds to run or did not use indexes.
Which contains all the settings that you need to add to or modify the slow log configuration?
- A. long_query_time=5
log_throttle_queries_not_using_indexes=5 - B. log_throttle_queries_not_using_indexes=5
min_examined_ row_limit=5000 - C. long_query_time=5
- D. min_examined_row_limit=5000
- E. long_query_time=5
min_examined_row_limit=5000 - F. log_throttle_queries_not_using_indexes=5
- G. long_query_time=5
log_throttle_queries_not_using_indexes=5
min_examined_row_limit=5000
Answer: B
NEW QUESTION # 45
Examine these entries from the general query log:
All UPDATE statements reference existing rows.
Which describes the outcome of the sequence of statements?
- A. Connection 24 experiences a lock wait timeout.
- B. All statements execute without error.
- C. Connection 25 experiences a lock wait timeout.
- D. A deadlock occurs after innodb_lock_wait_timeout seconds.
- E. A deadlock occurs immediately.
Answer: D
NEW QUESTION # 46
A valid raw backup of the shop.customers MyISAM table was taken.
You must restore the table. You begin with these steps:
1. Confirm that secure_file_priv='/var/tmp'
2. mysql> DROP TABLE shop.customers;
3. shell> cp /backup/customers.MY* /var/lib/mysql/shop/
Which two actions are required to complete the restore? (Choose two.)
- A. shell> cp /backup/customers.sdi /var/tmp
- B. mysql> SOURCE '/var/tmp/customers.sdi'
- C. mysql> IMPORT TABLE FROM /var/tmp/customers.sdi
- D. mysql> ALTER TABLE shop.customers IMPORT TABLESPACE
- E. mysql> ALTER TABLE shop.customers DISCARD TABLESPACE
- F. shell> cp /backup/customers.sdi /var/lib/mysql/shop/
- G. shell> cp /backup/customers.frm /var/lib/mysql/shop/
- H. mysql> IMPORT TABLE FROM /var/lib/mysql/shop/customers.sdi
Answer: C,D
NEW QUESTION # 47
Examine Joe's account:
CREATE USER 'joe'@'%' IDENTIFIED BY '*secret*'
GRANT ALL PRIVILEGES ON *.* TO 'joe'@'%'
All existing connections for joe are killed.
Which two commands will stop joe establishing access to the MySQL instance? (Choose two.)
- A. REVOKE USAGE ON *.* FROM 'joe'@'%'
- B. ALTER USER 'joe'@'%' PASSWORD HISTORY 0
- C. ALTER USER 'joe'@'%' SET password='*invalid*'
- D. REVOKE ALL PRIVILEGES ON *.* FROM 'joe'@'%'
- E. ALTER USER 'joe'@'%' IDENTIFIED BY '*invalid*' PASSWORD EXPIRE
- F. ALTER USER 'joe'@'%' ACCOUNT LOCK
Answer: D,E
NEW QUESTION # 48
Examine this query and output:
Which two statements are true? (Choose two.)
- A. The optimizer estimates that 51 rows in the countrytable have Continent = ‘Asia’.
- B. The countrytable is accessed as the first table, and then joined to the city table.
- C. It takes more than 8 milliseconds to sort the rows.
- D. The query returns exactly 125 rows.
- E. 35 rows from the city table are included in the result.
Answer: A,E
NEW QUESTION # 49
t is a non-empty InnoDB table.
Examine these statements, which are executed in one session:
BEGIN;
SELECT * FROM t FOR UPDATE;
Which is true?
- A. If ANALYZE TABLE; is invoked from the same session, it hangs until the transaction is committed or rolled back.
- B. If OPTIMIZE LOCAL TABLE t; is invoked from another session, it executes normally and returns the status.
- C. If OPTIMIZE TABLE; is invoked, it will create a table lock on t and force a transaction rollback.
- D. mysqlcheck --analyze --all-databases will execute normally on all tables and return a report.
Answer: B
NEW QUESTION # 50
You must run multiple instances of MySQL Server on a single host.
Which three methods are supported? (Choose three.)
- A. Use systemdwith different settings for each instance.
- B. Use resource groups to lock different instances on separate CPUs.
- C. Run MySQL Server docker containers.
- D. Start mysqldor mysqld_safeusing different option files for each instance.
- E. Use system tools to lock each instance to its own CPU.
- F. Run mysqldwith --datadirdefined for each instance.
Answer: A,D,F
Explanation:
Explanation/Reference:
NEW QUESTION # 51
Examine this MySQL Shell command:
dba.rebootClusterFromCompleteOutage()
Which two statements are true? (Choose two.)
- A. It only stops and restarts all InnoDB Cluster instances.
- B. It performs InnoDB Cluster instances rolling restart.
- C. It reconfigures InnoDB Cluster if the cluster was stopped.
- D. It only starts all InnoDB Cluster instances.
- E. It stops and restarts all InnoDB Cluster instances and initializes the metadata.
- F. It is not mandatory that all instances are running and reachable before running the command.
- G. It picks the minimum number of instances necessary to rebuild the quorum and reconfigures InnoDB Cluster.
Answer: B,F
NEW QUESTION # 52
Examine this statement and output:
You must try to reduce query execution time.
Which two queries should you focus on? (Choose two.)
- A. QN = 3
- B. QN = 4
- C. QN = 1
- D. QN = 5
- E. QN = 2
Answer: C,E
NEW QUESTION # 53
Your MySQL instance is capturing a huge amount of financial transactions every day in the finance database.
Company policy is to create a backup every day.
The main tables being updated are prefixed with transactions-.
These tables are archived into tables that are prefixed with archives- each month. mysqlbackup
--optimistic-busy-tables="^finance\.transactions-.*" backup
Which optimization process best describes what happens with the redo logs?
- A. The redo logs are backed up only if there are changes showing for the transactions tables.
- B. The redo logs are backed up first, then the transaction and archive tables.
- C. The redo logs are not backed up at all.
- D. The archive tables are backed up first, then the transaction tables and redo logs.
- E. The transaction tables are backed up first, then the archive tables and redo logs.
Answer: A
NEW QUESTION # 54
User account baduser@hostname on your MySQL instance has been compromised.
Which two commands stop any new connections using the compromised account? (Choose two.)
- A. ALTER USER baduser@hostname IDENTIFIED WITH mysql_no_login;
- B. ALTER USER baduser@hostname PASSWORD DISABLED;
- C. ALTER USER baduser@hostname DEFAULT ROLE NONE;
- D. ALTER USER baduser@hostname ACCOUNT LOCK;
- E. ALTER USER baduser@hostname MAX_USER_CONNECTIONS 0;
Answer: A,D
NEW QUESTION # 55
Which two commands will display indexes on the parts table in the manufacturing schema? (Choose two.)
- A. SELECT * FROM information_schema.statistics WHERE table_schema='manufacturing' AND TABLE_NAME='parts';
- B. SHOW INDEXES FROM manufacturing.parts;
- C. EXPLAIN SELECT INDEXES FROM manufacturing.parts;
- D. DESCRIBE manufacturing.parts;
- E. SELECT * FROM information_schema.COLUMN_STATISTICS;
Answer: A,E
NEW QUESTION # 56
Examine this command and output:
Which two statements are true? (Choose two.)
- A. The lock is at the metadata object level.
- B. The lock is an intentional lock.
- C. The lock is a row-level lock.
- D. The lock is a shared lock.
- E. The lock is an exclusive lock.
- F. The lock is at the table object level.
Answer: E,F
NEW QUESTION # 57
Examine this statement and output:
Which two SQL statements can jsmith execute? (Choose two.)
- A. UPDATE world.country SET Name='all';
- B. UPDATE world.country SET Name='one' LIMIT 1;
- C. UPDATE world.country SET Name='new' WHERE Name='old';
- D. UPDATE world.country SET Name=CONCAT('New ',Name);
- E. UPDATE world.country SET Name='first' ORDER BY Name LIMIT
Answer: A,C
NEW QUESTION # 58
Examine these InnoDB Cluster parameter settings:
Now examine the partial status:
A permanent network failure isolates host3.
Which two statements are true? (Choose two.)
- A. The issuing command cluster.switchToMuitiPrimaryMode() will fail to enable multi-primary mode.
- B. The primary instance can be specified by using the command
cluster.setPrimaryInstance(<host>:<port>). - C. The instance deployed on host2 is elected as the new primary instance.
- D. The instance deployed on host3 will automatically rejoin the cluster when connectivity is re-established.
- E. The instance deployed on host3 is expelled from the cluster and must be rejoined using cluster.addInstance ('host3:3377')
- F. Failure of the instance deployed on host1 provokes an outage.
Answer: B,D
NEW QUESTION # 59
Which three are requirements for a secure MySQL Server environment? (Choose three.)
- A. Keep the entire software stack on one OS host.
- B. Minimize the number of non-MySQL Server-related processes running on the server host.
- C. Ensure appropriate file system privileges for OS users and groups.
- D. Encrypt the file system to avoid needing exact file-system permissions.
- E. Run MySQL server as the root user to prevent incorrect sudo settings.
- F. Restrict the number of OS users that have access at the OS level.
Answer: A,C,D
NEW QUESTION # 60
Examine this command, which executes successfully:
mysqlpump --user=root --password > full_backup.sql
Which two databases will be excluded from this dump? (Choose two.)
- A. employee
- B. information_schema
- C. mysql
- D. sys
- E. world
Answer: B,D
NEW QUESTION # 61
You wish to protect your MySQL database against SQL injection attacks.
Which method would fail to do this?
- A. installing and configuring the Connection Control plugin
- B. using stored procedures for any database access
- C. avoiding concatenation of SQL statements and user-supplied values in an application
- D. using PREPARED STATEMENTS
Answer: B
NEW QUESTION # 62
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Oracle 1Z0-908: MySQL 8.0 Database Administrator Certification Path
The Oracle Certified Expert, Oracle 1Z0-908: MySQL 8.0 Database Administrator certification is for Database Development Systems Managers and Database Administrators with at least 1 year of RAC and Grid Infrastructure experience. It is also recommended to understand high availability concepts and clustering. To earn this certificate, you should have the ability to install, manage, monitor, and recover RAC databases, Clusterware, and ASM environments. You will get a complete understanding of the architecture of the Clusterware, ASM, and RAC databases while preparing for the exam with the help of 1Z0-908 practice test. After earning this certification, you will gain the skills of installing, setup, backup and recovery, tuning, and monitoring of these components.
The candidates should have to complete one of the following Certification or Training:
Oracle Database 10g Real Applications Clusters Certified Expert
Oracle Database 12c Certified Professional
Oracle Database 11g Certified Professional
1Z0-908 practice exams are great sources for the preparation of the exam but they do not meet the requirement of the training. To meet the requirement of the training course must be offered by Oracle University Training Center, Oracle Authorized Education Center, Oracle Authorized Partner, or Oracle Workforce Development Program. Courses can be a live virtual class, training on demand, learning subscription, or instructor-led in-class.
Oracle 1z1-908 certification exam is an excellent choice for anyone interested in becoming a MySQL 8.0 Database Administrator. It is a challenging exam that requires candidates to demonstrate their knowledge and skills in a variety of areas related to database administration. However, with the right preparation and dedication, candidates can pass the exam and earn a valuable credential that can help them advance their careers in the field.
Oracle 1Z0-908 exam covers a range of topics related to administering MySQL databases, including database architecture, installation and configuration, security, backup and recovery, and performance tuning. Candidates will be tested on their ability to perform a variety of tasks, such as creating and managing database objects, performing backups and restores, and monitoring database performance. 1z1-908 exam is designed to ensure that candidates have a comprehensive understanding of all aspects of MySQL database administration.
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