2021 Realistic Verified Free Oracle 1z1-908 Exam Questions
1z1-908 Real Exam Questions and Answers FREE
NEW QUESTION 24
Which two are true about binary logs used in asynchronous replication? (Choose two.)
- A. They are pushed from the master to the slave.
- B. They contain events that describe only administrative commands run on the master.
- C. They are pulled from the master to the slave.
- D. They contain events that describe database changes on the master.
- E. They contain events that describe all queries run on the master.
Answer: A,D
NEW QUESTION 25
You have an InnoDB Cluster configured with three servers.
Examine this command, which executes successfully:
mysqldump -uroot -p -d mydatabase > mydatabase_backup.sql
Due to data loss, the cluster is initialized and a restore is attempted resulting in this error:
ERROR 13176 (HY000) at line 23: Cannot update GTID_PURGED with the Group Replication plugin running Which two actions, either one of which, can fix this error and allow a successful restore of the cluster? (Choose two.)
- A. Stop all instances except the primary read/write master instance and run the restore.
- B. Remove the group replication plugin from each instance before restoring.
- C. Create the backup by using the --set-gtid-purged=OFF option.
- D. Remove the @@GLOBAL.gtid_purged statement from the dump file.
- E. Remove the @@GLOBAL.gtid_executed statement from the dump file.
- F. Restore using the --set-gtid-purged=OFF option.
Answer: C,D
NEW QUESTION 26
A colleague complains about slow response time on your website.
Examine this query and output:
What is the most likely cause for the high number of lock waits?
- A. You use the MyISAM storage engine for most common tables.
- B. The Innodb Buffer pool is full.
- C. You use the InnoDB storage engine and statements wait while data is inserted.
- D. Your table accesses wait for the operating system level flush.
Answer: C
NEW QUESTION 27
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 28
You encountered an insufficient privilege error in the middle of a long transaction.
The database administrator is informed and immediately grants the required privilege:
GRANT UPDATE ON world.city TO 'user1';
How can you proceed with your transaction with the least interruption?
- A. Change the default database and re-execute the failed statement in your transaction.
- B. Roll back the transaction and start the transaction again in the same session.
- C. Close the connection, reconnect, and start the transaction again.
- D. Re-execute the failed statement in your transaction.
Answer: D
NEW QUESTION 29
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 30
You have just installed MySQL on Oracle Linux and adjusted your /etc/my.cnf parameters to suit your installation.
Examine the output:
What statement is true about the start attempt?
- A. systemd found the mysqld service disabled and failed to start it.
- B. MySQL server was not started due to a problem while executing process 2732.
- C. MySQL server continued to start up even though another process existed.
- D. systemd attempted to start mysqld, found another systemd mysqld process running, and shut it down.
- E. systemd waited for 30 seconds before timing out and start up failed.
Answer: D
NEW QUESTION 31
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 32
Examine this query and output:
Which two statements are true? (Choose two.)
- A. The query returns exactly 125 rows.
- B. It takes more than 8 milliseconds to sort the rows.
- C. 35 rows from the city table are included in the result.
- D. The country table is accessed as the first table, and then joined to the city table.
- E. The optimizer estimates that 51 rows in the country table have Continent = 'Asia'.
Answer: C,E
NEW QUESTION 33
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 dat
a. 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. Use the Clone Plugin to copy the data to another MySQL system.
- B. Take your backup from a slave of the MySQL system.
- C. Take a physical backup of the MySQL system.
- D. Take a logical backup of the MySQL system.
Answer: D
NEW QUESTION 34
Which two are use cases of MySQL asynchronous replication? (Choose two.)
- A. It allows backup to be done on the slave without impacting the master.
- B. It guarantees near real-time replication between a master and a slave.
- C. MySQL Enterprise Backup will automatically back up from an available slave.
- D. You can scale reads by adding multiple slaves.
- E. You can scale writes by creating a replicated mesh.
Answer: A,D
NEW QUESTION 35
Which command enables rule-based MySQL Auditing capabilities?
- A. mysql> INSTALL PLUGIN audit_log;
- B. shell> mysqld --initialize --log-raw=audit.log
- C. mysql> INSTALL COMPONENT audit_log;
- D. shell> mysql < audit_log_filter_linux_install.sql
Answer: D
Explanation:
Explanation/Reference: https://dev.mysql.com/doc/mysql-security-excerpt/5.7/en/audit-log-filtering.html
NEW QUESTION 36
You plan to take daily full backups, which include the ndbinfo and sys (internal) databases.
Which command will back up the databases in parallel?
- A. mysqldump --all-databases > full_backup-$(date +%Y%m%d).sql
- B. mysqldump --single-transaction > full-backup-$(date +%Y%m%d).sql
- C. mysqlpump --include-databases=% > full-backup-$(date +%Y%m$d).sql
- D. mysqlpump --all-databases > full-backup-$(date +%Y%m%d).sql
Answer: A
NEW QUESTION 37
Which two are features of MySQL Enterprise Firewall? (Choose two.)
- A. blocking of potential threats by configuring pre-approved whitelists
- B. recording incoming SQL statement to facilitate the creation of a whitelist of permitted commands
- C. modifying SQL statement dynamically with substitutions
- D. automatic locking of user accounts who break your firewall
- E. provides stateless firewall access to TCP/3306
Answer: A,C
NEW QUESTION 38
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 transactions table will free up the most disk space.
- B. Executing SET GLOBAL innodb_row_format=COMPRESSED and then ALTER TABLE transactions will free up disk space.
- C. Truncating the sales and leads table will free up disk space.
- D. The transactions table was created with innodb_file_per_table=OFF.
- E. Executing ALTER TABLE transactions will enable you to free up disk space.
Answer: B,D
NEW QUESTION 39
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 40
Which two MySQL Server accounts are locked by default? (Choose two.)
- A. any new ROLE accounts
- B. any user set as DEFINER for stored programs
- C. any user created without a password
- D. any user created with a username, but missing the host name
- E. any internal system accounts
Answer: B,E
NEW QUESTION 41
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 42
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
NEW QUESTION 43
Examine these commands and output:
Which connection ID is holding the metadata lock?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
- F. 5
Answer: B
NEW QUESTION 44
Examine the modified output:
Seconds_Behind_ Mastervalue 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
Explanation:
Explanation
NEW QUESTION 45
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How much Oracle 1Z0-908: MySQL 8.0 Database Exam Cost
The price of the Oracle 1Z0-908 Exam is USD 245, for more information related to the Oracle 1Z0-908 Exam please visit Oracle website.
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 11g Certified Professional
Certifications:
Oracle Certified Expert, Oracle Real Application Clusters 11g and Grid Infrastructure Administrator
Oracle Database Administration 2019 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.
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1z1-908 Exam Questions | Real 1z1-908 Practice Dumps: https://drive.google.com/open?id=1rrzeulteB_1lum-W9KDtzGkTTjxOcSDL
