Latest 1Z0-908 Actual Free Exam Questions Updated 142 Questions
Free 1Z0-908 Exam Braindumps certification guide Q&A
Passing the Oracle 1z1-908 exam demonstrates to potential employers and clients that you have the skills and knowledge required to effectively manage MySQL databases. This certification can help you stand out in a competitive job market and open up new career opportunities. Additionally, the certification is recognized globally and can help you gain credibility and confidence in your skills as a MySQL database administrator.
The Oracle 1z1-908 exam is an essential certification for individuals seeking to become MySQL 8.0 Database Administrators. It requires extensive knowledge of SQL and database management concepts, experience working with MySQL 8.0 databases in production environments, and advanced skills in database administration. Passing the exam certifies one's proficiency in managing, securing, and optimizing MySQL 8.0 databases, which is critical for organizational success in today's technology-driven world.
The Oracle 1z1-908 exam consists of 70 multiple-choice and multiple-answer questions that must be completed within 105 minutes. The exam is available in several languages, including English, Japanese, and Simplified Chinese. Candidates can take the exam at an authorized testing center or online through the Oracle Certification Program. Upon passing the exam, candidates receive a certification that validates their expertise in MySQL 8.0 database administration and enhances their career opportunities in the field.
NEW QUESTION # 75
You have configured GTID-based asynchronous replication with one master and one slave.
A user accidentally updated some data on the slave.
To fix this, you stopped replication and successfully reverted the accidental changes. Examine the current GTID information:
You must fix GTID sets on the slave to avoid replicating unwanted transactions in case of failover. Which set of actions would allow the slave to continue replicating without erroneous transactions?
- A. RESET MASTER;
SET GLOBAL gtid_purged-aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa:1-2312;
SET GLOBAL gtid_executed=aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa:1-10167; - B. SET GLOBAL gtid_purged=aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa:1-2312,bbbbbbbb- bbbb-bbbb-bbbb-bbbbbbbbbbbb:1-9; SET GLOBAL gtid_executed=aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa:1-10167;
- C. RESET MASTER;
SET GLOBAL gtid_purged=aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa:1-10167; - D. RESET SLAVE;
SET GLOBAL gtid_purged=aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa:1-10167; - E. RESET SLAVE;
SET GLOBAL gtid_purged=aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa:1-3820;
SET GLOBAL gtid_executed=aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa:1-10300;
Answer: A
NEW QUESTION # 76
You are considering using file-system snapshots to back up MySQL.
Which three statements are true? (Choose three.)
- A. They do not use additional disk space.
- B. They take roughly twice as long as logical backups.
- C. The backup window is almost zero from the perspective of the application.
- D. They work best for transaction storage engines that can perform their own recovery when restored.
- E. They do not back up views, stored procedures, or configuration files.
- F. They allow direct copying of table rows with operating system copy commands.
- G. There is a slight performance cost while the snapshot is active.
Answer: A,D,E
NEW QUESTION # 77
Which two statements are true about the binary log encryption feature? (Choose two.)
- A. It encrypts any connecting slaves connection thread.
- B. It can be activated per session.
- C. It requires a keyring plugin.
- D. It can be set at run time.
- E. When enabled it encrypts existing binary logs.
Answer: A,B
NEW QUESTION # 78
You reconfigure and start a slave that was not replicating for several days.
The configuration file and CHANGE MASTER command are correct. Examine the GTID information from both master and slave:
Which statement is true?
- A. Replication will fail because the master does not have the required transaction with bbbbbbbb-bbbb- bbbb-bbbb-bbbbbbbbbbbb GTIDs in its binary logs.
- B. Replication will work.
- C. Replication will fail because the master has already purged transactions with cccccccc-cccc-cccc- cccc-cccccccccccc GTIDs.
- D. Replication will fail because the slave has purged more aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa transactions than the master.
- E. Replication will fail because of inconsistent numbers in cccccccc-cccc-cccc-cccc-cccccccccccc GTIDs.
Answer: D
NEW QUESTION # 79
A user wants to connect without entering his or her username and password on the Linux command prompt.
Which three locations can be used to store the user's mysql credentials to satisfy this requirement? (Choose three.)
- A. /etc/my.cnf file
- B. $HOME/.mysqlrc file
- C. $HOME/.my.cnf file
- D. $HOME/.mysql/auth/login file
- E. $HOME/.mylogin.cnf file
- F. DATADIR/mysqld-auto.cnf file
- G. $MYSQL_HOME/my.cnf file
Answer: A,F,G
NEW QUESTION # 80
Examine this partial output for InnoDB Cluster status:
Which statement explains the state of the instance deployed on host2?
- A. It has been expelled from the cluster because of a transaction error.
- B. It can rejoin the cluster by using the command cluster.addInstance('<user>@host3:3377')
- C. It can rejoin the cluster by using the command dba.rebootClusterFromCompleteOutage()
- D. It can be recovered from a donor instance on host3 by cloning using the command cluster.rejoinInstance ('<user>@host3:3377')
- E. It has been removed from the cluster by using the command STOP GROUP_REPLICATION;
Answer: C
NEW QUESTION # 81
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 ONLINE instance.
- B. The instance deployed on host3 must be rebuilt with a backup from the primary instance.
- C. It is possible to determine the most up-to-date instance by comparing different global transaction identifier (GTID) sets with GTID_SUBSET(set1,set2).
- D. The instance deployed on host3 must be synchronized from a donor deployed on host1 by using the command cluster.addInstance('host1:3377').
- E. The active session instance is invalid and must be re-created by using the command shell.connect ('host3:3377').
Answer: D
NEW QUESTION # 82
Which two MySQL Server accounts are locked by default? (Choose two.)
- A. any user created without a password
- B. any user created with a username, but missing the host name
- C. any user set as DEFINER for stored programs
- D. any internal system accounts
- E. any new ROLE accounts
Answer: C,D
NEW QUESTION # 83
Which two statements are true about raw binary backups? (Choose two.)
- A. They are faster than logical backups because the process is a simple file or file system copy.
- B. The data format is identical to how MySQL stores the data on disk.
- C. They are required to obtain FIPS security compliance.
- D. They are converted to a highly compressible binary format.
- E. The resulting files are easily human readable.
Answer: B,E
NEW QUESTION # 84
Your MySQL server was upgraded from an earlier major version.
The sales database contains three tables, one of which is the transactions table, which has 4 million rows.
You are running low on disk space on the datadir partition and begin to investigate.
Examine these commands and output:
Which two statements are true? (Choose two.)
- A. Truncating the sales and leads table will free up disk space.
- B. Executing ALTER TABLE transactions will enable you to free up disk space.
- C. Truncating the transactions table will free up the most disk space.
- D. Executing SET GLOBAL innodb_row_format=COMPRESSED and then ALTER TABLE transactions will free up disk space.
- E. The transactions table was created with innodb_file_per_table=OFF.
Answer: D,E
NEW QUESTION # 85
Examine this statement and output:
You must try to reduce query execution time.
Which two queries should you focus on? (Choose two.)
- A. QN = 2
- B. QN = 1
- C. QN = 4
- D. QN = 3
- E. QN = 5
Answer: A,B
NEW QUESTION # 86
Examine this SQL statement:
mysql> GRANT r_read@localhost TO mark WITH ADMIN OPTION;
Which two are true? (Choose two.)
- A. Mark can grant the r_read@localhost role to another user.
- B. ADMIN OPTION causes the role to be activated by default.
- C. ADMIN OPTION allows Mark to drop the role.
- D. Mark must connect from localhost to activate the r_read@localhost role.
- E. Mark can grant the privileges assigned to the r_read@localhost role to another user.
- F. Mark can revoke the r_read@localhost role from another role.
Answer: A,F
Explanation:
Explanation
https://dev.mysql.com/doc/refman/8.0/en/grant.html
NEW QUESTION # 87
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 creates a logical backup of all MySQL user accounts.
- C. It returns an error because the mysqldump command should have been used.
- D. It creates a logical backup of only the users database.
Answer: B
Explanation:
Explanation
the command mysqlpump --exclude-databases=% --users creates a logical backup of all MySQL user accounts as CREATE USER and GRANT statements2. The option --exclude-databases=% excludes all databases from the backup, while the option --users includes all user accounts1.
NEW QUESTION # 88
Which two are features of MySQL Enterprise Firewall? (Choose two.)
- A. recording incoming SQL statement to facilitate the creation of a whitelist of permitted commands
- B. provides stateless firewall access to TCP/3306
- C. automatic locking of user accounts who break your firewall
- D. modifying SQL statement dynamically with substitutions
- E. blocking of potential threats by configuring pre-approved whitelists
Answer: A,E
NEW QUESTION # 89
Examine this query:
What information does this query provide?
- A. total memory used by connection number 10
- B. total memory used by thread number 10
- C. total memory used by the first 10 connections
- D. total memory used across all connections associated with the user on thread number 10
- E. total memory used by the first 10 threads
- F. total memory used across all connections associated with the user on connection number 10
Answer: A
NEW QUESTION # 90
You have a MySQL system with 500 GB of data that needs frequent backups.
You use a mix of MyISAM and InnoDB storage engines for your data. Examine your backup requirement:
* The MySQL system being backed up can never be unavailable or locked to the client applications.
* The recovery from the backup must work on any system.
* Only 1 hour of data can be lost on recovery of the backup.
Which option fulfills all backup requirements?
- A. Take your backup from a slave of the MySQL system.
- B. Take a logical backup of the MySQL system.
- C. Use the Clone Plugin to copy the data to another MySQL system.
- D. Take a physical backup of the MySQL system.
Answer: B
NEW QUESTION # 91
Which two are valid uses for binary logs on a MySQL instance? (Choose two.)
- A. audit of all queries
- B. replication
- C. recording the order in which queries are issued
- D. point-in-time recovery
- E. logging the duration and locks for all queries
Answer: C,D
NEW QUESTION # 92
Examine this command, which executes successfully:
Which two statements are true? (Choose two.)
- A. A single-file backup is created.
- B. The backup operation will finish only when backup-and-apply-log is executed.
- C. A raw backup is created.
- D. The --backup-dir option holds temporary output, status, and metadata files.
- E. The backup operation will finish only when apply-log is executed.
Answer: D,E
NEW QUESTION # 93
Which two MySQL Shell commands are excluded from the InnoDB Cluster creation procedure? (Choose two.)
- A. cluster.forceQuorumUsingPartitionOf()
- B. dba.configureLocalInstance()
- C. cluster.setPrimaryInstance()
- D. cluster.addInstance()
- E. dba.configureInstance()
- F. dba.createCluster()
- G. dba.checkInstanceConfiguration()
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 # 94
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